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Kamis, 06 Maret 2014

​Arrow's best episode ever is both a tragedy and a comedy onlinecollegedegreee.blogspot.com

Written By 12; About: ​Arrow's best episode ever is both a tragedy and a comedy onlinecollegedegreee.blogspot.com on Kamis, 06 Maret 2014

onlinecollegedegreee.blogspot.com ​Arrow's best episode ever is both a tragedy and a comedy

​Arrow's best episode ever is both a tragedy and a comedy


"The Promise," is two episodes in one. The first is a wrenching tragedy. The second is one of the most delightful comic half-hours of television I have ever seen. This is the Arrow episode to watch, people.


The Tragedy


You know when KGBeast provides the storyline's lightest moments, it's going to be a downer. Sara, Ollie, and Slade plan an assault on the freighter, bonding all the way. Sure, their bond isn't entirely perfect, as Slade has secretly stashed away some Mirakuru, and Ollie and Sara are quietly not mentioning the fact that Ollie "chose" to let Shado get murdered by Ivo. But there's rum, and ironic toasts, so really, what could go wrong?


Things seem to go wrong when Ollie is captured and dragged aboard the freighter. (This is where KGBeast lightens the mood, dryly remarking, "Fantastic. We're saved.") He's drugged, and reveals that Sara and Slade are in the engine room. Except Sara made an antidote to truth serum, and actually, they are both parachuting their way over on deck while the entire crew searches beneath. What follows is all the shaky cam and controlled explosions in the world, as the crew and the prisoners struggle for control of the boat.


​Arrow's best episode ever is both a tragedy and a comedy S


Ollie corners Ivo and Ivo runs through a summary of Shado's execution and Ollie's "choice" so carefully that you can actually see, in the background, a cat leaping out of a bag. Of course Slade hears. To his credit, he seems at least as angry that Ollie lied to him about something so important as angry about Shado's death. This will not last.


There's something to be said for the fact that, despite the chaos, we get a sense that the guards, not the prisoners, are getting the upper hand. Sara, Ollie, KGBeast, and Thomas Flint, who because of his two displayed character traits I shall call Missionary With a Mouse, jump ship. Ollie doesn't make it. Slade has taken over the ship. Slade catches him by the ankle, whangs him against the side of the boat like he's a landed trout, and cages him.


​Arrow's best episode ever is both a tragedy and a comedy S


The last scene in the flashback, in which Slade makes a trembling, weeping Ivo hold out a gun on Ollie, only to lop off his hand, would make a strong man eat his own knuckles. Ollie asks why he's still alive, and Slade says, "You cannot die until you have known complete despair. And you will. I promise."


The Comedy


I can go for a tragedy every now and again, but my heart lies with comedies, and this episode provides in spades. As regular watchers know, Ollie just came home to his estranged mother and found Deathstroke sitting on her couch, having just contributed money to her campaign fund. During this episode, Ollie spends the entire visit being the world's mouthiest little black rain cloud. Slade is having the best time I have ever seen anyone have, and I've watched Animal House. When Conan claimed that what is best in life is "to crush your enemies, see them driven before you, and to hear the lamentations of their women," it was only because he never had a chance to sit on a couch, drink rum, and have an ever-so-slightly flirtatious conversation with his enemy's mother. The shoulder touching alone made Ollie look like he was going to burst a blood vessel.


Oh, the significant looks! Slade tells Moira that he's supporting her because she's pro-business and, because "I know how hard it is to pick yourself back up when everyone has written you off. Her icy look at Ollie when she says, "Indeed," is something to behold. When Ollie tells Slade, after Slade talks about losing someone he loved, to "move on," I thought Moira was going to break that bottle of Australian rum and slice his face up with the jagged edge.


​Arrow's best episode ever is both a tragedy and a comedy S


The moment Moira's out of the room, Thea comes along. Yes, that's it. Kiss Ollie's sister's hand right in front of him, Slade. I swear, Ollie looks like he wants to swallow his own tongue and vomit it back out again. Instead, when Moira comes back and tries to introduce Slade and Thea, Ollie just bursts in with, "They've met!" Oooooooo, Oliver Jonas Queen. Nice one. Apply cold compresses to the burned area.


Thea takes Slade on a tour of their art collection, which is made up of "18th century American landscapes." I have to say, I was distracted by the sheer unadulterated boringness of the Queen family taste in art. Eighteenth century American landscapes? That's so damn dull I can barely type it without falling asleep on the keyboard. The best bit of acting Slade does this week is pretending to be fascinated as Thea goes through painting after painting of vaguely gold-toned trees in front of soft-focus farm land. He amuses himself by making ominous (to Ollie) comments about how "when you lose someone you love you owe it to them to honor their memory."


​Arrow's best episode ever is both a tragedy and a comedy S


Ollie uses the time to dial the Arrow team, who assemble around the Queen mansion. Roy's shaking with excess energy, and Slade recognizes the signs of another Mirikuru user the moment they shake hands. Then Sara comes gliding down the stairs and looks worried. Ollie, finally showing a little smile, asks, "So what would you like to do now?"


Slade decides he'd like to leave. Dig has a sniper rifle on him outside (and how awesome would that look for Moira's campaign – having a donor die on her front porch the moment he's signed the check), but Dig is knocked out by someone who, I'm guessing from the previews of the next episode, is a member of the Suicide Squad. Slade gets into his car and leaves. Ollie leaves, too, as Moira informs him that if he's going to act like Grumpy Smurf, he can go and live in the woods for all she cares. And, as it turns out, Slade was just there to bug the Queen home.


I don't even smoke, but this episode made me want a cigarette. That was great.


onlinecollegedegreee.blogspot.com ​Arrow's best episode ever is both a tragedy and a comedy

Selasa, 04 Maret 2014

​The heroes of Bitten are also its most horrible villains onlinecollegedegreee.blogspot.com

Written By 12; About: ​The heroes of Bitten are also its most horrible villains onlinecollegedegreee.blogspot.com on Selasa, 04 Maret 2014

onlinecollegedegreee.blogspot.com ​The heroes of Bitten are also its most horrible villains

​The heroes of Bitten are also its most horrible villains S


Okay. Either Bitten is a very subtle look at how fascists justify their oppression of others, or the show just has no clue that having its secondary protagonist castrating a man to death for choosing love over the law is supremely, supremely fucked.


Quick recap: Jeremy is poisoned, Elena searches for Zachary Cain's human galpal, gets caught in another super-obvious trap, where Marsten actually just asks her to stay out of the upcoming battle; after breaking Killwolf's arm and discovering the poison he dosed Jeremy with, Elena leaves unharmed. Clay tortures Zachary Cain for a while, and it ends very badly (see below). Nick goes off to erase his father's death and have meaningless sex while the Pack is still in incredible danger and its leader lays dying. And last and most certainly least Dullfriend sees Elena's clothes in the Wolf Vodka video, which he believes means she was cavorting naked in the woods somewhere.


All this is crap. There are two massively important points in "Prisoner": 1) Elena talk with Cain's gal pal, who reveals she not only knows about werewolves, but that Cain refused to bite her because he loved her too much to risk losing her. Note this is EXACTLY opposite of what ostensible hero Clay did when he bit Elena immediately upon Jeremy telling Clay she simply had to leave when he first brought her home.


And on the subject of Clay perhaps not being a hero: 2) After Elena confronts Clay with the news that Zachary Cain loves his shitty Helena Bonham Carter knock-off more than Clay apparently ever loved Elena — that he trusted her enough to be honest with her about himself, but also loved her so much he couldn't bite her despite how much she begged — Clay confronts Cain. And Cain confirms it all; he does love HBC, and the only reason he joined this Mutt uprising is because Pack law says that if she knows about werewolves she has to die, but he also didn't want to lie to her. He practically has to overthrow the Pack if he wanted to be honest with the woman he loves and continue to live with her. Oh, and then Clay castrates Zachary Cain to death.


What the fuck? And that's just for the reveal that Zachary Cain is nobler, romance-wise, than Clay. What the fucking fuck is my reaction to Clay castrating a character.


I'd mentioned before my confusion about Bitten's werewolf society, and someone mentioned that Mutts were just inherently less in control than Pack wolves. But how is that all mitigated by harassing every Mutt to prevent them settling down roots? How can they possibly be serene when the only true relationships the Pack allows are those within the Pack?


Sure, Cain and the Mutts have murdered people — Pete, Antonio, several innocents, and I'm not excusing that — but the Packs of the world apparently can kill Mutts for disobeying laws that they did not make, and cannot argue against. The Mutts here have killed a bunch of people, but have they killed more than Clay did in his job as enforcer?! And the enforcer before him, this Jimmy Koenig guy (who has been hired by the Mutts) was apparently much more violent than Clay. This sounds like fascism, plain and simple. "We're morally the best people in town, but we forbid you to love. Oh, and unless you follow all of our rules, we'll cast you out and prevent you from ever settling down, and if we see anybody breaking these rules we're going to kill you, and it'll be okay because we're in charge." Seriously, this is completely fucked up.


Even if you disagree about Pack vs. Mutt society, think about this: Zachary Cain, the ostensible bad guy, loved a woman so much that he was willing to die for her. Clay, the ostensible hero, loved a woman so much he was willing to kill her. Also, only one group is ripping people's dicks off. Honestly, of the two sides, I know which one I'd rather be on.


onlinecollegedegreee.blogspot.com ​The heroes of Bitten are also its most horrible villains

Senin, 03 Maret 2014

An interactive map showing how baby names spread across the US onlinecollegedegreee.blogspot.com

Written By 12; About: An interactive map showing how baby names spread across the US onlinecollegedegreee.blogspot.com on Senin, 03 Maret 2014

onlinecollegedegreee.blogspot.com An interactive map showing how baby names spread across the US

An interactive map showing how baby names spread across the US S


Using US census data, creator Brian Lee Yung Rowe has developed an interactive map showing how names have grown and waned in popularity in different states since the early 1900s.


Inspired by a recent baby name visualization, Yung Rowe wanted to see how a single name spreads across the country based on its prevalence in each state. So, for example, while a name like Brian never tops the list, it still has ebbs and flows of popularity that might be worth tracking.


The interactive map can be found here.


Just put a name in the box, choose whether you want to look at male or female names, and press Go; there are more than 29,000 names available, including those that appear for both genders. Each state gets highlighted over time according to the proportion of the babies with that name.


One of the more interesting take-away's from this map is how some names are geographically clustered. Take a look at the name "Terrence" and how it has changed from 1946 to 1987.


An interactive map showing how baby names spread across the US S


An interactive map showing how baby names spread across the US S


"[W]hat is most interesting is to see how some names are popular in a specific geographic region while others are more broadly popular," he writes in a blog post. "Presumably the way names spread are governed by demographics, technology, and media."


Please share your own personal maps in comments!


onlinecollegedegreee.blogspot.com An interactive map showing how baby names spread across the US

Kamis, 27 Februari 2014

Ever had your mind blown by an egg? onlinecollegedegreee.blogspot.com

Written By 12; About: Ever had your mind blown by an egg? onlinecollegedegreee.blogspot.com on Kamis, 27 Februari 2014

onlinecollegedegreee.blogspot.com Ever had your mind blown by an egg?

Ever had your mind blown by an egg?


The common guillemot is a bird with decidedly uncommon eggs. They're shaped in such a way that when they roll, they do so not in a long, wide arc but a tight, uniform circle. But why would an egg do such a thing?


Guillemots are seabirds, and they tend to congregate on the ledges of cliffs overlooking the ocean. The view is spectacular, but it's a pretty precarious place for a newly laid clutch of baby birds. Guillemots don't even build nests, and their breeding colonies are notoriously crowded – what's to keep an egg from getting knocked around and rolling over the edge of the nearest precipice? Answer: A shape that causes it to veer, in a narrow gyre, away from the edge and out of harm's way.


Ever had your mind blown by an egg? S


A crowded guillemot colony on the UK's Farne Islands | Photo Credit: gabrisigno.


It's reasonable to assume that the guillemot egg's shape is a rather elegant product of natural selection, and that the birds are perhaps descended from a cliff-dwelling ancestor with inferiorly shaped eggs. Those ancestors whose eggs were more conical in shape – and therefore more prone to rolling circularly – had their genes passed on in their surviving offspring. Those ancestors whose eggs were more spherical in shape may have literally watched their genetic legacy roll away, only to be dashed sad and yolky on the rocks below their cliffside roosts.


Ever had your mind blown by an egg? S


Not to harp on about this group of birds, specifically (the eggs of most birds tend to make for fascinating examples of natural selection – they vary tremendously in size, shape and color, and are incredibly adaptive), but the guillemot egg's shape is not its only remarkable feature. Guillemots nest in large groups, and the markings on each female's eggs are markedly distinct. This makes it easier for females to identify unhatched offspring as their own. (At left: some variegated guillemot eggs. Photo credit: Steven Portugal.)


Researchers also recently discovered that guillemot egg shells are composed of cone-like nanostructures that make them more hydrophobic than the eggs of most other birds. This water-repelling characteristic lends the eggs a "self-cleaning" quality. Water that falls on an egg's surface will bead and roll away, taking salt (deposited by the ocean breeze), feces (deposited by the birds) and dirt away with it. Free of these impurities, the an egg's shell can more effectively mediate the exchange of oxygen and carbon dioxide between the embryo and the outside world.


All-in-all, the guillemot's is one accommodating ovum.


Top animation via our favorite repository of nature gifs, Head Like and Orange.


[Via It's Okay to be Smart]


onlinecollegedegreee.blogspot.com Ever had your mind blown by an egg?

Rabu, 26 Februari 2014

You won't believe your eyes when you see these statues move onlinecollegedegreee.blogspot.com

Written By 12; About: You won't believe your eyes when you see these statues move onlinecollegedegreee.blogspot.com on Rabu, 26 Februari 2014

onlinecollegedegreee.blogspot.com You won't believe your eyes when you see these statues move

You won't believe your eyes when you see these statues move


Beijing artist Li Hongbo's freaky flexible sculptures have been attracting a lot of attention lately, but now you can see them like never before — in glorious slow motion.


Incredibly, no special effects were used to create these visuals. The sculptures consist of thousands of layers of paper, arranged in a honeycomb-like lattice and pieced together with glue. Then, using a subtractive carving technique, Hongbo chips away with an electric saw to achieve the desired shapes.


You won't believe your eyes when you see these statues move S


Displaying this work has been a problem for Hongbo, but now, in collaboration with Eli Klein from Klein Sun Gallery, the sculptures have been presented in a spectacular way, thanks to these close-up shots filmed at 240 frames per second. Here's an extended cut:


onlinecollegedegreee.blogspot.com You won't believe your eyes when you see these statues move

Selasa, 25 Februari 2014

Cyber thieves use a virus to pull off a digital currency heist onlinecollegedegreee.blogspot.com

Written By 12; About: Cyber thieves use a virus to pull off a digital currency heist onlinecollegedegreee.blogspot.com on Selasa, 25 Februari 2014

onlinecollegedegreee.blogspot.com Cyber thieves use a virus to pull off a digital currency heist

Cyber thieves use a virus to pull off a digital currency heist S


Using a malicious botnet called Pony, cyber criminals have stolen an estimated $330,000 worth of BitCoins, LiteCoins, FeatherCoins, and other digital currencies. It's considered the most ambitious cyber attack on virtual money so far.


Security experts are already familiar with the Pony botnet — a collection of infected computers that take orders from central "command and control" servers. Late last year, it was responsible for approximately two million compromised accounts, but the operators of botnet have now taken Pony's game to the next level.


According to security firm Trustwave, the Pony botnet has stolen some 85 virtual "wallets" that contained BitCoins and other types of digital currencies (estimates include about 355 BitCoins, 280 LiteCoins, 33 PrimeCoins, and 46 FeatherCoins). The firm isn't sure how much money was stolen, but it could be upwards of $330,000 U.S. The heist occurred over a four-month period (between September 2013 and mid-January 2014) during which time Pony managed to steal over 700,000 credentials (including 600,000 website logins, 100,000 email accounts, and 16,000 FTP accounts).


Betanews explains some of the implications — and why this sort of criminal activity is so enticing:



There are obvious attractions in targeting virtual currencies, firstly they contain money, but secondly BitCoin transactions — by design — cannot be reversed. Once money is transferred out of your virtual wallet there's nothing you can do. There's no authority you can contact to reverse the transaction or freeze your account.


Trading information is also open, so anyone can examine the history of a virtual wallet though the identity of the owner remains unknown. The net result of all this is that stealing virtual currencies is much easier than stealing from a bank. Exchanging for hard currency via a trading website is just another transaction and by the time it occurs any connection to the original owner of the BitCoins is gone.


Once an attacker has the wallet.dat file containing the private key he becomes just as much the owner of the wallet as its original creator. Of course the wallet file can be protected with a password but it seems that many users don't bother to do this.



According to Reuters, this is at least the third type of fraud to surface involving digital currencies:



Criminals have previously hacked into marketplaces where digital currencies are traded by exploiting security flaws in those sites, then stealing those currencies...Cyber criminals have also developed botnets that force enslaved computers to create, or "mine", digital currencies, which the fraudsters then claim as their own.


Bitcoin mining is a time-consuming process in which computers perform complex math calculations. The operators of those botnets are stealing electricity and data center resources when they use compromised machines to mine digital currencies.



More at Trustwave SpiderLabs.


Image: Julia Zakharova/Shutterstock.


onlinecollegedegreee.blogspot.com Cyber thieves use a virus to pull off a digital currency heist

Senin, 24 Februari 2014

This tiny blue crystal is the oldest known thing on Earth onlinecollegedegreee.blogspot.com

Written By 12; About: This tiny blue crystal is the oldest known thing on Earth onlinecollegedegreee.blogspot.com on Senin, 24 Februari 2014

onlinecollegedegreee.blogspot.com This tiny blue crystal is the oldest known thing on Earth

This tiny blue crystal is the oldest known thing on Earth S


Scientists say this blue zircon crystal is 4.4 billion years old, making it the oldest known chunk of our planet. The discovery is forcing a rethink of Earth's early geological history — and our planet's capacity to harbor life.


The zircon crystal, which was extracted in 2001 from a rock outcrop in Australia, measures a mere 200 by 400 microns — about twice the diameter of a human hair. To age it, scientists used two different techniques: atom-probe tomography (which identifies and maps individual atoms) and by determining the radioactive decay of uranium to lead in the sample. Individual zircon rocks provide the only physical evidence from the earliest phases of Earth's geological past.


To put the extreme age of this rock into perspective, the Earth itself formed as a ball of molten rock about 4.5 billion years ago. The presence of this crystal suggests our planet cooled down enough to form a solid crust a mere 100 million years later, and 160 million years after the formation of the solar system. The finding strengthens the "cool early Earth" hypothesis, where temperatures were low enough to sustain oceans — and perhaps life — earlier than assumed. The Hadean eon, it now appears, may not have been as harsh as we thought.


Because the Earth formed a solid crust 4.4 billion years ago, it may have been capable of sustaining microbial life about 100,000 years later (though no fossil evidence exists to support this assertion). To date, the oldest sample of microbial life dates back about 3.4 billion years.


Read the entire study at Nature Geoscience: "Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography."


Photograph: University of Wisconsin/Reuters.




onlinecollegedegreee.blogspot.com This tiny blue crystal is the oldest known thing on Earth

Jumat, 21 Februari 2014

This pulsar got slammed by a billion-ton asteroid onlinecollegedegreee.blogspot.com

Written By 12; About: This pulsar got slammed by a billion-ton asteroid onlinecollegedegreee.blogspot.com on Jumat, 21 Februari 2014

onlinecollegedegreee.blogspot.com This pulsar got slammed by a billion-ton asteroid

This pulsar got slammed by a billion-ton asteroid S


You know when you're having a bad day when you get hit by a billion-ton asteroid. But for a pulsar 37,000 light-years away, it's just a another day at the office. And besides, PSR J0738-4042 has an uber-powerful X-ray blaster to deal with errant space rocks.


Image: An artistic impression of an asteroid getting blasted by the powerful X-rays from a pulsar, turning it into energized particles that interact with the pulsar's magnetic field. NASA/JPL-CALTECH.


Astronomers of Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO) made the pulsar-pounding, asteroid-zapping discovery while using the Parkes Telescope to study the dusty, high-radiation environment surrounding the tiny spinning husk of the dead star. Pulsars are spinning compact stellar objects known as neutron stars that generate powerful beams of radiation from their intensely magnetized poles that, if aligned correctly with Earth, can be observed as ultra-precise radio pulses.


Pulsars are considered the most precise "clocks" in the universe, but if a pulsar's pulse timings abruptly change, a cataclysmic event likely occurred.


In the case of PSR J0738-4042, the CSIRO astronomers noticed weird changes in the pulsar's timing and its characteristic pulse, signals that the researchers have attributed to multiple asteroid hits.


"One of these rocks seems to have had a mass of about a billion tons," said CSIRO astronomer Ryan Shannon in a press release.


In 2008, Shannon theorized that should a large rocky object, like an asteroid or even a small planet, collide with a pulsar, the pulsar will react in a very precise way; now it seems PSR J0738-4042 has become the prime candidate as observational evidence for this theory. The time of the pulse has lengthened and the radio signal received by Parkes has changed.


"We think the pulsar's radio beam zaps the asteroid, vaporizing it. But the vaporized particles are electrically charged and they slightly alter the process that creates the pulsar's beam," said Shannon. The electrically charged particles interact with the pulsar's magnetic field, like a magnetic blender, generating energy, sapping some of the pulsar's angular momentum. This has a drag effect, slowing the spin rate. However, once all the ionized material has been converted to energy, the pulsar is expected to return to its pre-asteroid strike spin rate.


It is thought that the surrounding asteroids originated from the star that exploded to form the pulsar. The pulsar is a byproduct of a supernova, but before the star went supernova, it formed a system of rocky bodies, such as the billion ton asteroid and, possibly, planets.


This asteroid-vaporizing event is exciting in that it proves that rocky debris that formed before the star went supernova persisted after the star's death, forming a debris disk around PSR J0738-4042. It's possible that the surviving debris disk could be rejuvenated, spawning the agglomeration of larger and larger objects, potentially forming new planets.


The discovery of asteroid vaporization events close to PSR J0738-4042 is an interesting development in the study of disks surrounding pulsars. For example, another pulsar, J0146+61, has been found to be sporting a dusty debris disk and, in 1992, two planet-sized objects were discovered orbiting pulsar PSR 1257+12.


"This sort of dust disk could provide the 'seeds' that grow into larger asteroids," said Ph.D. student Paul Brook, of the University of Oxford and CSIRO who led the PSR J0738-4042 study.


This research has been published in The Astrophysical Journal Letters.


This article originally appeared at Discovery News.


onlinecollegedegreee.blogspot.com This pulsar got slammed by a billion-ton asteroid

Rabu, 19 Februari 2014

Superpower vision lets cats and dogs see in ultraviolet onlinecollegedegreee.blogspot.com

Written By 12; About: Superpower vision lets cats and dogs see in ultraviolet onlinecollegedegreee.blogspot.com on Rabu, 19 Februari 2014

onlinecollegedegreee.blogspot.com Superpower vision lets cats and dogs see in ultraviolet

Superpower vision lets cats and dogs see in ultraviolet


A new study suggests dogs and cats can see things that are invisible to humans — from psychedelic stripes on flowers to flashy patterned feathers on birds. Scientists say the secret behind this remarkable "superpower" is ultraviolet light detection.


Given their sleek ways, cats have long been a symbol of mysticism, and now the reputation gets a boost from new research that finds common house cats see things that are invisible to us.


Everything from psychedelic stripes on flowers to flashy patterned feathers on birds are likely detectable by cats and certain other animals, while humans remain oblivious to such things. We are also — perhaps luckily — missing out on seeing a whole world of urine markers blanketing the landscape.


UV Light Detection


The secret behind the feline vision "superpower" is ultraviolet light (UV) detection. A new paper, published in the Proceedings of the Royal Society B, found that cats, dogs and certain other animals see this form of light that is usually invisible to humans.


"There are many examples of things that reflect UV, which UV sensitive animals could see that humans can't," co-author Ronald Douglas told Discovery News. "Examples are patterns on flowers that indicate where nectar is, urine trails that lead to prey, and reindeer could see polar bears as snow reflects UV, but white fur does not."


A reindeer, a cat and a dog could therefore probably see a white-furred animal, such as a bunny, hopping through a snow blizzard, while most people would just see a blur of all white.


Douglas, a professor of biology at City University London specializing in the visual system, and co-author Glen Jeffery, a professor of neuroscience at University College London, determined that cats, dogs, rodents, hedgehogs, bats, ferrets and okapis all detect substantial levels of UV.


"It has been known for nearly a hundred years that many invertebrates, such as bees, see UV," Douglas said, adding that birds, fish, and some reptiles and amphibians were added to the list in more recent decades.


"However," he added, "it was assumed that most mammals do not see UV because they have no visual pigment maximally sensitive in the UV and (instead possess) lenses like those of man, that prevent UV reaching the retina."


Ocular Media


He explained that visual pigments are the substances that absorb light and turn it into the electrical activity that nerve cells transmit. They turn out not to be always necessary for UV sensitivity. Instead, the "ocular media" (transparent parts of the eye like the cornea and crystalline lens) in certain animals transmits UV wavelengths.


The ability allows more light to reach the retina, "which would be good for a nocturnal cat," Douglas said.


The skill might also help to explain why cats become obsessed with unusual objects, like sheets of paper.


Man-made optical brighteners are sometimes added to paper, fabrics, laundry detergents, cosmetics and shampoos to make them appear brighter. Since optical brighteners absorb light in the UV spectrum, they might appear different, or stand out more, to UV-sensitive animals.


Certain people, such as those who have had their lenses replaced during cataract surgery, can see at least some UV, but most humans cannot.


"We do all assume that it (UV) may be harmful," Jeffery told Discovery News. "I work a lot in the Arctic where UV levels can be very high, particularly in spring and early summer when there is still a lot of snow and ice. These surfaces reflect 90 percent of the UV, so the animals are exposed from above and below. If you do not have snow goggles on, your eyes hurt within 15 minutes."


Studies on reindeer, however, find that repeated exposure to UV doesn't bother them at all.


Cats, reindeer and other animals built to detect UV might be protected from this visual damage in some way. It's also thought that UV light tends to create more blurry images.


"Now, if there is one thing humans are good at, it's seeing detail," Douglas said. "Perhaps that's why they have a lens that removes the UV. If they didn't, the world would appear more blurred."


This article originally appeared at Discovery News.


Image: Paris Owl/Shutterstock.


onlinecollegedegreee.blogspot.com Superpower vision lets cats and dogs see in ultraviolet

Selasa, 18 Februari 2014

Pigs are being strung-up and shot to train army medics in Denmark onlinecollegedegreee.blogspot.com

Written By 12; About: Pigs are being strung-up and shot to train army medics in Denmark onlinecollegedegreee.blogspot.com on Selasa, 18 Februari 2014

onlinecollegedegreee.blogspot.com Pigs are being strung-up and shot to train army medics in Denmark

Pigs are being strung-up and shot to train army medics in Denmark


Just a week after a "surplus" giraffe was killed at a Danish zoo, Denmark is once again embroiled in an animal cruelty controversy. According to PETA's British and German affiliates, the Danish military is using live pigs for target practice and medical training. [Warning, the following images are disturbing.]


It's called Operation Danish Bacon — a training regimen in which live animals are used to re-create battlefield injuries.


Pigs are being strung-up and shot to train army medics in Denmark


The new images, which were provided by PETA, show pigs being shot and blown up as they're strung from wooden rafters. Military personnel can be seen using AK-47 rifles and 9mm handguns. Then, to give army medics the experience of working on gunshot wounds, the animals are operated upon. The pigs are later killed, even if the surgery is a success.


Pigs are being strung-up and shot to train army medics in Denmark


According to a Mirror report, British army surgeons have been sending surgeons to Jaegerspris Kaserne in Denmark twice a year to take part in the exercises — even though the practice is illegal in Britain.


Pigs are being strung-up and shot to train army medics in Denmark


Thankfully, the pigs are anaesthetized throughout the ordeal. From The Mirror:



During the training the pigs are "subjected to bullet and blast wounds", the UK Government has confirmed. PETA has appealed to the Danish Minister of Defence to stop the country's animal-based trauma training exercises.


Campaigners argue that hi-tech human simulators should be used instead, adding that they are more realistic than using live animals.


A PETA spokesman said: "Eighty per cent of Nato allies have already ended the cruel use of animals in archaic military medical training exercises.


"Instead of shooting, stabbing and blowing up animals, military personnel in these nations are trained to treat traumatic injuries using life-like human-patient simulators, such as the state-of-the-art Caesar military simulator.


"This is used by the Nato Centre of Excellence for Military Medicine, as well as other non-animal methods that have repeatedly been shown in military and civilian studies to teach lifesaving skills better than crude animal laboratories."



This practice may also be a violation of Denmark's own Animal Welfare Act, which requires that non-animal methods be used to train the military whenever possible.


Pigs are being strung-up and shot to train army medics in Denmark


According to a former U.S. military medical worker, lifelike human simulators are a far superior way of preparing doctors to treat injured humans. The so-called Caesar patient simulator, which breathes and bleeds, can be used anywhere.


More at The Mirror.


All images: Jorn Stjerneklar/PETA.


onlinecollegedegreee.blogspot.com Pigs are being strung-up and shot to train army medics in Denmark

Senin, 17 Februari 2014

In the TimeWatch RPG, paradoxes are part of the fun onlinecollegedegreee.blogspot.com

Written By 12; About: In the TimeWatch RPG, paradoxes are part of the fun onlinecollegedegreee.blogspot.com on Senin, 17 Februari 2014

onlinecollegedegreee.blogspot.com In the TimeWatch RPG, paradoxes are part of the fun

In the TimeWatch RPG, paradoxes are part of the fun S


Someone murdered an ambassador's wife, leading to a NATO vs. Warsaw Pact war in the 1960s. Your team is on the case, but not to bring the killer to justice. This is TimeWatch – and your job is to prevent this crime from ever happening in the first place.


Time travel is one of the most difficult topics/powers to tackle in an RPG. In a traditional RPG, it can be incredibly unbalancing if used as anything other than a one-off plot device. Creating an entire RPG centered around characters with the ability to travel anywhere up or down the time stream sounds equally awesome and impossible.


Game designer Kevin Kulp accepted that challenge, creating TimeWatch based on the investigation-centric Gumshoe RPG system. Gumshoe makes it easy for game masters to build seemingly elaborate mystery-based adventures with minimal effort, and lets players find clues and solve mysteries using their own wits instead of a lucky die roll. I interviewed Kevin about the development of TimeWatch.


io9: TimeWatch uses the Gumshoe system, with a focus on investigation and mystery solving, but it also incorporates pulp action and other types of adventures. Did you consider any other systems, or have any plans to port it to other systems? In a lot of ways it feels like a Savage Worlds game, for instance.


Kevin Kulp: TimeWatch was a (somewhat streamlined) Gumshoe game since day one. I think it's a great match: Gumshoe's design assumes that finding clues is less fun than deciding what to do with them. I wrote the game to take advantage of those mechanics. My goal was to work in just about every time travel trope you can think of, including the "Bill and Ted" solution of having your future self drop off useful objects, and Gumshoe handled that seamlessly.


I'm a little surprised by how adaptable the TimeWatch rules are turning out to be. They work as well for classic sci-fi as they do for 1920s Lovecraftian secret societies who combat mythos horrors by traveling through dreams; Sliders-like parallel universes where we jettison time travel entirely in favor of adventures in alternate timelines; and a "crime-time" setting where you play time-traveling con men and master thieves. I'm not sure how many of those campaign expansions will make the final science-fiction-focused rulebook, but I'm delighted they're possible. I'm not sure such settings would work as well with a different rule system.


io9: There are a few obvious time travel touchstones, like Dr. Who, Quantum Leap, and the X-Men comics. What are some of the other influences on TimeWatch?


Kevin Kulp: Our premise is that you're an elite time cop, fixing history after other time travelers accidentally (or purposefully) screw it up. Poul Anderson's classic "Time Patrol" series of short stories inspired that initial seed. TimeWatch is fueled by history podcasts (particularly Dan Carlin's Hardcore History), alt-history forums (such as a superb one on Reddit), Harry Turtledove and Simon Hawke novels, the old "What If?" anthologies, the Terminator movies, and Kenneth Hite's old alternate history work.


io9: Some of the character concepts are pretty out there — uplifted gorillas, psychic velociraptors. How does Gumshoe allow for that kind of flexibility?


Kevin Kulp: Those examples belong to TimeWatch's Pulp playstyle, something you really wouldn't see in a more hard sci-fi setting, but here's what I love most about Gumshoe: the rules don't give a damn about how you describe something, so long as your character can accomplish it.


For instance, let's say you want to intimidate a subject into spilling a clue. The rules don't care if you're a huge and threatening intelligent gorilla, a frail accountant who can hack the subject's credit rating, a medieval psychic who mentally activates the subject's worst fears, or a futuristic super-scientist who uses nanotechnology to influence emotion. That's up to you. All the rules care about is, "do you have one or more points in Intimidation?" Having those points means you'll get the information you need from the GM—everything else is you being creative.


As a result, you can play agents from anywhere in history, from neanderthal times to the far future. You build your Gumshoe character normally, describe her however you like, and you're good to go. If you're playing a neanderthal, for instance, I recommend a high Disguise skill — and it's up to you whether your disguise comes from clothing and makeup, a high-tech Mission Impossible-style mask, a holographic projector, or something else. As long as you make your Disguise roll during a scene, you'll be fine.


In the TimeWatch RPG, paradoxes are part of the fun S


io9: I'll admit that, as a GM, the thought of creating a cohesive adventure for my players that involves time travel is pretty daunting. Can you tell me about the mission seeds and other GM advice you have planned? Any plans to publish complete TimeWatch adventures?


Kevin Kulp: If there's one thing I'm experienced at, it's writing GM advice! I think that's essential for TimeWatch. Time travel games give players huge flexibility: if you can't get past a security guard, you can go back in time a few years and befriend him, so that when you encounter him standing guard in the present day he recognizes you as his old neighbor and barbecue buddy. Or hey, why not go back two months and get a job there yourself? Or go back a couple of hours and arrange an emergency, so that the guard is called away from his post at the perfect time.


Encouraging the players to be creative and innovative is a strength of the game, and it's something I'll want to talk about extensively in the GM advice. That's equally true with designing adventures. In TimeWatch the bad guys have usually already gotten away with it—changed history—and you have to figure out what they did so that you can go back and stop it from ever happening at all. That makes it different from just about every single game on the market.


So how do you build an adventure for a setting like that? Until the internet age, time travel adventure design was intimidating—you'd have to head to the library and hope for a useful encyclopedia. Now it's dead simple: a single search about a historical era will turn up dozens of completely brilliant plot hooks that can fuel an evening's play. We're going to include multiple missions and dozens of short adventure hooks to inspire you, and we'll likely have a 96-page campaign expansion that includes a series of missions, thematically linked but playable in any order. Over the last three weeks we've also seen a number of free TimeWatch missions being written and posted online. I think GMs will be in good shape; with Wikipedia, it takes me about half an hour to prep an adventure, and it's fun to do so.


I love that the game inadvertently teaches you history in the process. I'm just never sure whether to mention that as a selling point.


In the TimeWatch RPG, paradoxes are part of the fun S io9: Have any of your playtesters surprised you with unexpected ways to use time travel?


Kevin Kulp: Constantly. I had one player use literal rocket science to set up a meteorite as a weapon of mass destruction against Nazi Germany. I had one player recruit his own younger self into TimeWatch. I had a character run a 20 year long-con, living with a nomadic hordes for two dozen years in order to secure the great Khan's trust and respect during one crucial minute.


The stand-out surprise happened when a group of characters barely survived a brutal ambush, traveled back in time, then set up that same ambush against themselves in order to prove to a Mongol warlord that they could predict the future. Utterly brilliant, completely unexpected, proved that the bad guy didn't know where they were after all, and it ended up winning them the day.


As one of our playtesters said, making sure his TimeWatch team had a convenient parking space as they pulled up in front of a Prohibition-era speakeasy: "If it's a game about time travel, I will use it for frivolous, dramatic purposes."


onlinecollegedegreee.blogspot.com In the TimeWatch RPG, paradoxes are part of the fun

Selasa, 11 Februari 2014

A tiger in India has killed 10 people in six weeks onlinecollegedegreee.blogspot.com

Written By 12; About: A tiger in India has killed 10 people in six weeks onlinecollegedegreee.blogspot.com on Selasa, 11 Februari 2014

onlinecollegedegreee.blogspot.com A tiger in India has killed 10 people in six weeks

A tiger in India has killed 10 people in six weeks


A female tiger has strayed from the confines of India's Corbett Tiger Reserve — and she's developed a taste for human meat. The big cat, who's prowling an area spanning 80 miles, has started attacking humans because she's not able to find enough natural prey.


This past Sunday, February 9th, the tigress claimed its 10th and most recent victim — a 50-year-old man who was collecting firewood in the forest outside Kalgarh village in Uttarakhand state. She ate parts of the man's leg and abdomen before being frightened away by villagers waving shovels and metal rods. Frustratingly, hunters nearly caught the tiger the day before using a live calf as bait. But she did not attack it, and left silently.


Back on December 29th, a 65-year-old man was mauled in Sambhal district of Uttar Pradesh state. Since then, a state of near-panic has spread amongst the thousands of villagers in the region.


Because the tiger has been tracked across an 80-mile (130-km) expanse, and because she's resorted to attacking humans, naturalists speculate that she's not able to find enough natural prey — a problem that endemic to many of the world's predators. They also believe she's tired and likely not getting enough rest. Today, India has about 3,200 tigers left in the wild — a far cry from the 5,000 to 7,000 in the 1990s when their habitat was twice as large. Tigers are an endangered species owing to rampant poaching and shrinking habitats.


Hunters haven't been able to trap the tigress owing to the dense forests, inadequate staffing, and poor coordination, and the locals are not impressed. On Sunday, a group of angry villagers seized a national forestry office, demanding protection and compensation for the families of the dead.


"We can understand the predicament of the villagers," noted Corbett Tiger Reserve deputy director Saket Badola in an AP release. "The villagers do not have toilets in their homes. They go out in the open or forest areas to answer nature's call. In this scenario it is difficult to give protection to each and every villager. We have advised them to move in groups."


[Via CBC/AP]


Top image: An unrelated tiger from the Corbett Tiger Reserve in the northern Indian state of Uttarakhand is shown in a file photo via Corbett Tiger Reserve/AP .


onlinecollegedegreee.blogspot.com A tiger in India has killed 10 people in six weeks

Senin, 10 Februari 2014

The easy way to "prove" that zero is one and -1 is infinity onlinecollegedegreee.blogspot.com

Written By 12; About: The easy way to "prove" that zero is one and -1 is infinity onlinecollegedegreee.blogspot.com on Senin, 10 Februari 2014

onlinecollegedegreee.blogspot.com The easy way to "prove" that zero is one and -1 is infinity

The easy way to "prove" that zero is one and -1 is infinity


So you've been set a task: prove something which is clearly not true. That sounds much tougher than it is. All you need is basic math skills, an infinite series of numbers, and a playful spirit. Take a look.


We're going to look at how easy it is to "prove" impossible things if you can write a few whole numbers, juggle them around, and add them together. To be fair, there need to be a lot of numbers for you to be able to do this, but you don't have to write them all. You can just write a few terms in a series, an infinite series, and people will get the idea.


For example:


1/2 + 1/4 + 1/8 + 1/16 + . . .


That series will go on to forever, and you understand how it will go. You also understand what the sum of all those infinite terms will be. As the number of terms increase, the series will add up to a number that gets closer and closer to one. Because it adds up to a definite number, it's called a series that displays "absolute convergence." It converges on a single, unchanging number.


Not all infinite series will do the same. And if you work with series that don't absolutely converge, you can use simple tricks to prove all sorts of things. For example, let's look at a series that proves that one is equal to zero.


1 - 1 + 1 - 1 + 1 - 1 + . . .


Adding and subtracting one is the simplest possible thing to do in math, so how is this series going to prove an impossible thing? Well, first let's say the series adds up to a number that we'll call N. Then, let's group the numbers just the right way.


1 - 1 + 1 - 1 + 1 - 1 + . . . = N


(1 - 1) + (1 - 1) + (1 - 1) + . . . = N


All I've added are parentheses, and those don't make a difference if all we're doing is adding a series of terms, but this makes the explanation of the series obvious. All of those grouped (1 - 1) terms are equal to zero, and even if you add an infinite number of zeroes together, you'll get zero.


1 - 1 + 1 - 1 + 1 - 1 + . . . = (1 - 1) + (1 - 1) + (1 - 1) + . . . = (0) + (0) + (0) + . . . = 0 = N


That's simple enough. But let's look at another way to group the pairing.


1 + (-1) + 1 + (-1) + 1 + (-1) . . . = 1 + (-1 + 1) + (-1 + 1) + (-1 + 1) . . . = 1 + 0 + 0 + 0 . . . = N


Since N is equal to N, and both zero and one are N, then one is equal to zero. Here's an even simpler one.


1 + 1 + 1 + 1 . . . = M


It's pretty obvious that M is infinity, right? Well, what if we change it around a little? What if we look at terms that are equivalent to one? (-1 + 2) is equal to one, right? And (-2 + 3) is also equal to one. Here's another pattern you could use to write this series:


(-1 + 2) + (-2 + 3) + (-3 + 4) + (-4 + 5) + . . . = M


This can be re-written like this:


-1 + (2 - 2) + (3 - 3) + (4 - 4) + . . . = M = -1


In this way, we've "proved" M is equal to infinity and M is equal to negative one. So negative one is equal to infinity. Meaning you only have to go slightly into debt to have an infinite amount of money.


[Via Magnificent Mistakes in Mathematics]


onlinecollegedegreee.blogspot.com The easy way to "prove" that zero is one and -1 is infinity

Jumat, 07 Februari 2014

Conan O'Brien's The Walking Dead special was astoundingly awesome onlinecollegedegreee.blogspot.com

Written By 12; About: Conan O'Brien's The Walking Dead special was astoundingly awesome onlinecollegedegreee.blogspot.com on Jumat, 07 Februari 2014

onlinecollegedegreee.blogspot.com Conan O'Brien's The Walking Dead special was astoundingly awesome

The second half of The Walking Dead's (pretty excellent) season 4 begins on this Sunday evening, but last night talk show host Conan O'Brien welcomed the show back with a full-on undead extravaganza, complete with zombie lesbians making out, Daryl singing, and the greatest cold open in Conan history.


The cold open is obviously above, so here's an extremely weird duet between Daryl and Carol of an original song which will haunt my dreams forever:


And last but not least, sexy zombie-girl-on-zombie-girl action.


As for the rest of the interviews, which featured Danai Gurira (Michonne), Steve Yeun (Glenn) and Lauren Cohan (Maggie), in addition to Norman Reedus and Melissa McBride, there are two clips so far, featured here.


[Via Uproxx]


onlinecollegedegreee.blogspot.com Conan O'Brien's The Walking Dead special was astoundingly awesome

Rabu, 05 Februari 2014

Feathered dinosaur death site could be an "animal Pompeii" onlinecollegedegreee.blogspot.com

Written By 12; About: Feathered dinosaur death site could be an "animal Pompeii" onlinecollegedegreee.blogspot.com on Rabu, 05 Februari 2014

onlinecollegedegreee.blogspot.com Feathered dinosaur death site could be an "animal Pompeii"

Feathered dinosaur death site could be an "animal Pompeii" S


A series of fossil discoveries in the 1990s changed our understanding of the lives of early birds and mammals, as well as the dinosaurs they shared an ecosystem with. All those discoveries had one thing in common: they came from a small region in northern China that preserved what is now called the Jehol Biota.


Top Image: Chuang Zhao and Lida Xing.


Until now, however, no one knew why so many well-preserved fossils have been found in that region. In a new study published in Nature Communications, researchers have found that this remarkable preservation might have been the result of a Pompeii-like event, where hot ash from a volcanic eruption entombed these animals.


Dino Colors


According to Sarah Gabbott at Leicester University, who wasn’t involved in the study, “unravelling the environments in which fossilisation took place, as the authors do in this paper, is very important. It places the fossils within the context of their habitat and it allows us to determine what filters and biases may have played a part.” These biases may affect which organisms get preserved.


The fossils of the Jehol Biota are from the Early Cretaceous period, about 130 million years ago, and they comprise a wide variety of animals and plants. So far, about 60 species of plants, 1000 species of invertebrates, and 140 species of vertebrates have been found in the Jehol Biota.


Feathered dinosaur death site could be an "animal Pompeii" S


Photos show the typical entombing poses of the Jehol terrestrial vertebrate fossils. This boxer-like pose is typical of victims of pyroclastic density currents, resulting from postmortem tendons and muscles shortening. Credit: Baoyu Jiang.


One of the most remarkable discoveries to arise from these fossils came in 2010, when Michael Benton of the University of Bristol found color-banding preserved in dinosaur fossils. These stripes of light and dark are similar to stripes in modern birds, and provided further evidence that dinosaurs that evolved into birds. Benton also found that these fossils had intact mealnosomes – organelles that make pigments. This discovery allowed paleontologists, for the first time, to tell the colors of dinosaurs' feathers.


Rising from the Ashes


Baoyu Jiang of Nanjing University, the lead researcher of the new study, has been studying fossils from Jehol Biota for more than a decade. “About two years ago, we realized that the sediments and their enclosing skeletons may provide key clues about what happened to these animals when they were killed and buried,” he said.


The fact that so many fossils were found exquisitely preserved from the same time period suggested some form of mass death. Even before Baoyu started this work, there were suggestions that volcanoes may have been responsible.


Using 14 different fossils from five locations within the deposits, Baoyu found marks of fast-moving ash and hot gas, known as pyroclastic flows, that can only result from a nearby volcanic eruption. The bones showed black streaks, which suggests charring had occurred.


Almost Pompeii


Feathered dinosaur death site could be an "animal Pompeii"


But questions remain. The area that supported the Jehol Biota is suspected to have been a wetland with many lakes. Most fossils are found in lakebeds, suggesting that either the fossils were washed into these lakes by floods or that the animals were in the lakes before fossilisation took place. (Photo Credit: Yukatafish)


Baoyu believes that if fossils don’t separate at bone joints, it means the animals must have been in the lake before dying, but that is not a convincing argument, Gabbott said. “A freshly dead carcass, buoyed by decay gases which collect in the stomach, can be transported for tens if not hundreds of kilometers without such disarticulation (separation of bones at joints).”


No other fossil location, let alone that which produced so many well-preserved samples, has ever been suggested to have undergone a similar event. A comparison can be made to what happened in Pompeii in 79 AD, when Mount Vesuvius erupted. The ensuing destruction led to the preservation of the city’s architecture and objects but not of people or animals. The human and animal remains we see from Pompeii are plaster casts of the empty spaces their decomposed bodies left in the ash.


Still, Jehol Biota and Pompeii both show how mass tragedies at the feet of volcanoes can preserve the past for future generations to discover.


This article was originally published at The Conversation. Read the original article here.


onlinecollegedegreee.blogspot.com Feathered dinosaur death site could be an "animal Pompeii"

Selasa, 04 Februari 2014

Watch every single Transformer transformation scene in one video onlinecollegedegreee.blogspot.com

Written By 12; About: Watch every single Transformer transformation scene in one video onlinecollegedegreee.blogspot.com on Selasa, 04 Februari 2014

onlinecollegedegreee.blogspot.com Watch every single Transformer transformation scene in one video

Are you ready for 10 straight minutes of Transforming doing what they do best (i.e., transforming)? Here is very single transformation from all three of Michael Bay's Transformers films in one gigantic supercut. May we never tire of the iconic vomp vomp vomp sound effect.


The video was created by Tunglebrek who gives props to Michael Bay, ILM, Digital Domain and sound designer Erik Aadahl for their great work transforming cars into gigantic alien robots.


onlinecollegedegreee.blogspot.com Watch every single Transformer transformation scene in one video

Jumat, 31 Januari 2014

An even better look at all four of Michael Bay's new Ninja Turtles onlinecollegedegreee.blogspot.com

Written By 12; About: An even better look at all four of Michael Bay's new Ninja Turtles onlinecollegedegreee.blogspot.com on Jumat, 31 Januari 2014

onlinecollegedegreee.blogspot.com An even better look at all four of Michael Bay's new Ninja Turtles

An even better look at all four of Michael Bay's new Ninja Turtles S


We were all pleasantly surprised at the badass and not terrible redesign the Michael Bay-produced Teenage Mutant Ninja Turtles movie gave its titular stars. But now we have our best look yet at the official Turtles, thanks to some new promotional art — including what their faces look like.


An even better look at all four of Michael Bay's new Ninja Turtles


Still not bad! I'm a little creeped out by the very human eyes in the not at all human faces — also Raphael and Michaelangelo's little nose stubs — but I have to admit overall they still look pretty great. Donatello's goggles are kind of perfect, and somehow even Raphael's sunglasses don't seem ridiculous. What do you guys think?


[Via Scifi Now]


onlinecollegedegreee.blogspot.com An even better look at all four of Michael Bay's new Ninja Turtles

Kamis, 30 Januari 2014

Lockheed takes a major step toward bringing lasers to the battlefield onlinecollegedegreee.blogspot.com

Written By 12; About: Lockheed takes a major step toward bringing lasers to the battlefield onlinecollegedegreee.blogspot.com on Kamis, 30 Januari 2014

onlinecollegedegreee.blogspot.com Lockheed takes a major step toward bringing lasers to the battlefield

Lockheed takes a major step toward bringing lasers to the battlefield


Defense contractor Lockheed Martin has successfully demonstrated a 30-kilowatt fiber optic laser for military applications. It's one of the most powerful lasers ever seen — and a major step forward to getting directed-energy weapons on the battlefield.


Described as a "weapons grade" laser, the 30-kilowatt beam combines many fiber lasers operating a slightly different wavelengths into a single "near perfect" band of light. Lockheed says the upgraded system produced the highest power ever documented while still retaining beam quality and electrical efficiency and using 50% less electrical power than solid-state lasers.


Eventually, these systems could be installed on military platforms such as aircraft, helicopters, ships, and trucks.


Lockheed takes a major step toward bringing lasers to the battlefield S


"The high-energy laser serves as the heart of a laser weapon system," said Ray O. Johnson, senior vice president and chief technology officer of Lockheed Martin. "This 30-kilowatt milestone shows our commitment to producing the high-beam quality and high power needed to address a variety of military 'speed-of-light' defensive operations."


Ideally, a high power 100-kilowatt system will be required to effectively destroy military targets like enemy artillery or drones. It'll also have to maintain near-perfect beam quality over long distances. What's more, electrical efficiency will be crucial to ensuring the system can be cooled effectively and made manageable in size.


Working with Aculight, Lockheed is currently working to develop a 60-kilowatt laser.


Back in May of last year, the company tested its Lockheed Martin Area Defense Anti-munitions (ADAM) prototype laser. Watch as it destroys a Qassam-like rocket target:


[ UPI | Optics.org | Top image: Lockheed Martin test of 10 kW ADAM]


onlinecollegedegreee.blogspot.com Lockheed takes a major step toward bringing lasers to the battlefield

Rabu, 29 Januari 2014

Mexico's axolotl 'water monster' may be extinct in the wild onlinecollegedegreee.blogspot.com

Written By 12; About: Mexico's axolotl 'water monster' may be extinct in the wild onlinecollegedegreee.blogspot.com on Rabu, 29 Januari 2014

onlinecollegedegreee.blogspot.com Mexico's axolotl 'water monster' may be extinct in the wild

Mexico's axolotl 'water monster' may be extinct in the wild S


The iconic axolotl — a salamander-like creature capable of extraordinary regenerative abilities — has disappeared from its only known natural habitat in Mexico's few remaining lakes.


These aquatic creatures are basically salamanders that never grew up. Also known as 'water monsters,' they're a neotenal species whose adult members never lose their gills, allowing them to remain perpetually underwater. They're also unique in that they can regenerate their limbs, including less vital parts of their brains. It's for this reason that they're studied extensively by scientists, which is why many of them are bred and live in labs throughout the world.


But sadly, they may now be extinct in the wild. Its only known habitat, Lake Xochimilco, is suffering from extensive pollution and urban sprawl. The Telegraph reports:



Biologist Luis Zambrano of Mexico's National Autonomous University says the most recent three-month attempt to net axolotls found not one of the creatures. He says researchers are planning a second three-month hunt for the creatures, which still survive in labs and breeding tanks...


...The Mexican Academy of Sciences said in a statement that a 1998 survey found an average of 6,000 axolotls per square kilometre, a figure that dropped to 1,000 in a 2003 study, and 100 in a 2008 survey.


Tovar Garza said it is too early to declare the axolotl extinct in its natural habitat. He said that in early February, researchers will begin a three-month search in hopes of finding what may be the last free-roaming axolotl.


The searches "on almost all the canals have to be repeated, because now we are in the cold season, with lower temperatures, and that is when we ought to have more success with the axolotls, because it is when they breed," Tovar Garza said.



More at The Telegraph. Image: Cen.


onlinecollegedegreee.blogspot.com Mexico's axolotl 'water monster' may be extinct in the wild

Senin, 27 Januari 2014

Dwarven mechs battle the bones of giants in War of Metal and Bone RPG onlinecollegedegreee.blogspot.com

Written By 12; About: Dwarven mechs battle the bones of giants in War of Metal and Bone RPG onlinecollegedegreee.blogspot.com on Senin, 27 Januari 2014

onlinecollegedegreee.blogspot.com Dwarven mechs battle the bones of giants in War of Metal and Bone RPG

Dwarven mechs battle the bones of giants in War of Metal and Bone RPG S


War of Metal and Bone is an RPG with an great elevator pitch: it's a war between dwarves, using massive metal golems and warriors soul-bonded to giant skeletons. The game also takes advantage of the many open source game systems used by popular indie RPGs today.


Lead designer Tracy Barnett explained how War of Metal and Bone works and how the world of Iron Edda was developed. The RPG has already met its initial Kickstarter goal, but stretch goals could unlock dozens of variants using game systems like Pathfinder, Gumshoe, Savage Worlds, and 13th Age.


io9: Let's start by talking about the world of Iron Edda. What kind of a fantasy world is this? What kinds of stories will players tell and experience when they play it?


Tracy Barnett: The world of Iron Edda is heavily based in Norse mythology. The game focuses on a Ragnarok where the dwarves have risen up in giant metal constructs to destroy humanity. The humans are fighting back by bonding the souls of warriors to the bones of dead giants. In addition, I want anyone who sits down at the game table to find a space for themselves in the game. So we're talking about epic adventures featuring characters of diverse backgrounds fighting to preserve the world they love. It's both epic in scope, and personal in experience.


What RPG system is War of Metal and Bone being developed for?


TB: War of Metal and Bone is being developed for Fate Core. Well, with some Fate Accelerated, and some of my own twists thrown in. Fate does an amazing job telling a variety of personal and epic stories. With the rules I'm adding, things like handling giant scale things in the same combat scene as human scale things are pretty easy, and a hell of a lot of fun.


In addition, I've got stretch goals lined up for nearly every system that you can think of with an open or easy-to-obtain license. Each book has a different author behind it, and will offer a different take on the same themes. Rather than use mostly the same text save for the rules in each book, every system is its own, unique game. Pathfinder is very different from Savage Worlds, which is in turn different from things like Pendragon and Dungeon World. I think that by keeping the core concepts that make each game an Iron Edda game, but letting each author express their take on those concepts in a way that makes each system sing, well, that's some hotness right there.


In addition to the systems, there are also a number of setting books planned that will enhance and expand upon the setting set forth in War of Metal and Bone. Each of those has a different author as well.


Dwarven mechs battle the bones of giants in War of Metal and Bone RPG S


Open source game systems aren't new in the RPG world, but they seem to be experiencing a sort of golden age at the moment. What do you think is driving that? What are some of the advantages that open source brings to designers and gamers?


TB: I think it reinforces an instinct that RPG players already have, which is to tinker, hack, rework, and modify. When a system is open, it gives more opportunities for publication, sharing without worrying about things like Cease and Desist notices, and it gives people a chance to build on prior in a meaningful way. A game like Dungeon World wouldn't exist without Apocalypse World being open to license. Similarly, I never would have had the chance to take on this project.


What does the name Iron Edda mean?


TB: It's a callback to some of the most complete documentation of Norse mythology that we have: the Poetic and the Prose Eddas, written by Snorri Sturluson in the 1200s. I wanted a name that would evoke both the Norse myth that I drew from, and the changes I was making to make it an epic fantasy setting.


Where did this idea come from? Did it start out as your personal campaign world?


TB: The game was born from a smaller version of the idea that I wrote for Machine Age Productions' mecha game, Apotheosis Drive X. They did a bunch of alternate settings and when I wanted to pitch an idea, I tried to think of what sort of setting I knew best. The answer was fantasy. And when considering how to get mechs, of a sort, into the game, I thought about the dwarven ruins in Skyrim. In Skyrim, Bethesda blended Norse myth and an existing world in a very cool way. I thought, maybe arrogantly, that I'd try something similar. Turns out that it was a workable idea and one that people seem to really dig.


Dwarven mechs battle the bones of giants in War of Metal and Bone RPG S


What are some of the challenges of working with so many different writers on different aspects of the same project?


TB: I think that the biggest challenge will be making sure that the books all present as part of a cohesive whole. This is especially true for the setting books that will all reference and use material from the core book. I'm blessed to have John Adamus as my editor/project manager. John is not only an excellent editor, but he's also very good at working with multiple people across multiple books. I think having someone that I can trust like that is key. I have my own work to finish on the core book. As well, editing isn't my strong suit, so if I tried to keep the tone and content consistent, it would be a lot more difficult.


It all comes down to one important thing: Hire people you trust to do the stuff you hire them to do. It sounds simplistic, but if I didn't know and trust each and every person that I have working on the huge number of stretch goals I have lined up then this project would have no chance of succeeding. But the group I've assembled is amazing. It's because of them that I think the project will be a success.


onlinecollegedegreee.blogspot.com Dwarven mechs battle the bones of giants in War of Metal and Bone RPG