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Should We Lose Sleep Over Hostile Aliens?

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Aliens Declare War

Sony

Pixels comes out July 24

In 1974, astronomer Frank Drake tried to contact aliens by firing a three-minute-long broadcast, from the Arecibo radio telescope, into a globular star cluster 25,000 light-years away. Drake’s message, the first of its kind, was a largely symbolic gesture­--just like the many transmissions lobbed into space since. Because radio waves travel at the speed of light, it could take many millennia to reach ETs and receive a response.

But today, such an endeavor no longer seems as futile. Since 2009, the Kepler Space Telescope has spotted roughly 1,838 exoplanets, some of which could prove habitable. The closest planet capable of supporting life is likely just 12 light-years away. To hedge humanity’s bets, some astronomers are calling for a ban on galactic broadcasts; even Stephen Hawking warned against attracting the attention of advanced civilizations. But Seth Shostak, director of the Center for SETI Research, thinks any such ban is moot. The near-constant radar signal broadcast by the Denver International Airport, he calculates, could be detected by an antenna 10 light-years away. “You want to shut down the radar there forever?” asks Shostak. “That’s nutty.”

This article was originally published in the July 2015 issue of Popular Science, as part of our Weird Science feature. Check out the rest of the feature here.


Milestone In Nigeria: One Year Polio-Free

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A child in Nigeria receives a polio vaccine

Ruth McDowall, Rotary International

One year ago today, health officials announced the last case of polio in Nigeria. Since then, the country has remained polio-free—one step of many toward an official certification of eradication from the World Health Organization.

As of 1988, there were more than 125 countries harboring polio. If Nigeria is able to reach total eradication, only two countries—Pakistan and Afghanistan—will remain on that list.

If and when polio is entirely eradicated worldwide, it could become the second human disease that we’ve ever been able to wipe out, after smallpox. (Efforts to expunge the Guinea worm are also vying for second place.)

The news from Nigeria is a great step, and comes from a joint effort between the WHO, the Centers for Disease Control and Prevention, the United Nations Children’s Fund, and Rotary International—which together form the Global Polio Eradication Initiative—as well as support from other organizations including the Bill and Melinda Gates Foundation.

But there is more work to be done, according to Carol Pandak, the director of Rotary’s PolioPlus program. “There will be a four to six week period where all of the laboratory specimens are still being tested. After those are clears, the WHO would removed Nigeria from the list of polio-endemic countries.”

After that, the immunization campaigns must continue. The country must remain free of polio for the next two years before its status is official. “It’s one milestone. It’s the first step of the process,” says Pandak.

The efforts that go into those campaigns are stunning. Immunization teams, usually four people including two vaccinators, a record-keeper, and a supervisor, set out for hours at a time traveling door-to-door to vaccinate children. It’s challenging to keep the supply chain suitably cold to store the vaccine, which is the oral polio vaccine (also called the [Sabin vaccine])(http://amhistory.si.edu/polio/virusvaccine/vacraces2.htm)). According to Tunji Funsho, a cardiologist and Nigeria’s PolioPlus chair who goes into the field around once a month on vaccination teams, some families refuse to vaccinate for religious or political reasons, and require extra discussion and attention.

Ongoing conflicts pose additional—and dangerous—challenges. For example, the terrorist group Boko Haram is active in northeastern Nigeria, which requires extra monitoring. Funsho says that the PolioPlus team has regular contacts in the regions to advise when it is safe for vaccination teams to travel door-to-door. Teams are essentially on call and ready to swoop in as soon as the area is clear. (Similarly, conflicts in Afghanistan and Pakistan, mainly involving the Taliban, remain a big challenge for vaccination teams in that region.]

Despite these challenges, Funsho is optimistic about today’s one-year anniversary, although he acknowledges that more effort is still needed. He says he feels “a lot of relief, a lot of delight. And then a little bit of trepidation, because we still have a lot of work to do be certified as polio-free in 2017. It’s a mixed bag of emotions.”

Could We Give Criminals Corrective Brain Implants?

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Maybe the government would have tried to change the mind of Basque Nationalist Party member Sabino Arana, held captive in Bilbao in 1895.

In A Clockwork Orange, the narrator, Alex, commits a heinous crime. In prison, Alex is offered a behavior modification program in exchange for a shortened sentence. The treatment takes away Alex’s ability to make his own decisions—his violent nature is conditioned out of him.

In an article published this week in Motherboard, writer Zoltan Istvan (whose campaign for President we have covered previously) makes a case for a similar piece of technology: a brain implant that could turn the worst criminals into upstanding members of society, rehabilitating them in a way never before possible.

…It’s likely we will have cranial implants in two decades time that will be able to send signals to our brains that manipulate our behaviors. Those implants will be able to control out-of-control tempers and violent actions—and maybe even unsavory thoughts. This type of tech raises the obvious question: Instead of killing someone who has committed a terrible crime, should we instead alter their brain and the way it functions to make them a better person?

The technology is already almost there, he argues—thousands of people use implants to treat deafness or epilepsy or Alzheimer’s. Some new forms claim to alter people’s moods. And with millions of government dollars pouring into brain research, this sort of implant must be right around the corner. He continues:

Some people may complain that implants are too invasive and extreme. But similar outcomes—especially in altering criminal’s minds to better fit society’s goals—may be accomplished by genetic engineering, nanotechnology, or even super drugs. In fact, many criminals are already given powerful drugs, which make them quite different that they might be without them. After all, some people—including myself—believe much violent crime is a version of mental disease.

I called an expert—Amanda Pustilnik, a professor at the University of Maryland law school and a senior fellow for law and applied neuroscience at Harvard Law School.

Her takeaway? “The story is speculative and interesting, but it gets a bunch of things wrong,” she says.

First, Istvan misunderstands the purpose of the death penalty. If we just wanted to control people’s behavior, then we would just keep them locked up; the death penalty exists as the ultimate punishment, for those who have acted so far beyond the social contract that they can’t be forgiven. It’s not a practical matter, Pustilnik says—it’s an emotional one, one in which society seeks retribution. “The idea that a brain implant could control behavior misses the point. These are people we already control,” Pustilnik says. To Pustilnik, brain implants wouldn’t provide a viable alternative to the death penalty and certainly wouldn’t satisfy its supporters.

There are also lots of pragmatic issues surrounding brain implants in criminals, Pustilnik says. One is that the technology is nowhere near as advanced as Istvan claims. “In two decades, maybe we’ll have something better than we can imagine now—it’s fun to speculate. And maybe if those devices work the way the article hypothesizes, the social norms about punishment will change and it won’t be so retributive,” she says. But based on the information currently at hand, “we are so far away from anything that could control behavior.”

Even if we did have personality-altering devices readily available, implanting them would be an ethical and legal minefield. That’s because a prisoner could not consent to such a procedure from a legal perspective. “Even if a prisoner were to consent, that is highly suspect because it’s not consent that is fully informed or freely given. If a prisoner’s choice is accept the brain implant—along with the accompanying risk and invasion of his physical and mental self—or to spend rest of his life in prison, that’s a highly constrained choice from which it’s not possible to get free consent,” Pustilnik says. Doctors or surgeons bound by current U.S. law of informed consent would be barred from performing such a procedure, as it would deprive a prisoner of his cognitive liberty, covered by the First, Fourth and Fifth Amendments.

“Criminals are not neurologically different than the rest of us."

Pustilnik also disagrees on the nature of those who commit crimes. “Criminals are not neurologically different than the rest of us—they are a product of environment and opportunity,” she says. Maybe one in a million criminals is violently psychopathic, she says, and they probably need to either be incarcerated or have some sort of technological intervention that might control them. “But the average criminal smoked a little weed, or stole a car, or shoplifted, or never had good behavioral modeling at home so they punched someone in the face. Most people don’t need brain implants. They are not them—they are us.”

So maybe brain implants aren't the answer to today's criminal justice problems. To Pustilnik, the best way to use technology to help criminals is to better use what we have now—finding better ways to implement body cameras or GPS ankle bracelets (along with the copious data they produce) could be a huge asset to law enforcement. Or, she adds, the government could help provide recently released convicts with supportive housing and mental health services. That, she says, could go a long way towards stopping the cycle of reoffending criminals.

“There’s such a sexiness around neuroscience, and I love it, but that sometimes deflects us from easier, cheaper, more effective things we could do more efficiently, both now or in the future,” Pustilnik says.

Watch Here As NASA Releases New Pluto Images At 2 pm Eastern

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Pluto, Enhanced

NASA/JHUAPL/SwRI

Four images, taken when New Horizons was 280,000 miles away from Pluto, were combined with color data to make this enhanced image of the heart-shaped "Tombaugh Regio." The exaggerated color scheme helps to highlight some of the intriguing diversity of Pluto's surface composition.

On July 14, the New Horizons spacecraft made history. In just a few short hours, it flew through the Pluto system collecting a treasure trove of images and data with a higher-resolution than we've ever seen before, or could hope to see again in the near future. About 96 percent of that treasure trove is still sitting in storage on the spacecraft. Thanks to the spacecraft's more than 4.5-billion-mile distance from Earth and its narrow communications bandwidth, it's gonna take another 16 months or so before can finish beaming back all that juicy data. So it's coming in bit-by-tantalizing-bit, and today NASA will release another batch at 2pm EDT. You can watch the announcement live, right here:

It should be good. Previous press conferences have revealed not one but two mountain ranges on just one tiny piece of the planet, as well as some kind of rolling, white plains.

Yesterday we asked Alan Stern, head of the New Horizons team, what to expect from today's press conference and he joked, "We're going to recommend that anyone who has cardiac conditions should probably leave the room.”

*Update: The press conference is over, and it did not disappoint. We got to see Pluto's backside, plus learn about the nitrogen glaciers that are scaping across its surface. Read all about it here!

Just One All-Nighter Can Alter Your Genes, Possibly For Years To Come

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Flckr CC by David Mulder

The study suggests that even one night of lost sleep could have a lasting effect on your genes.

There’s a new reason to go to bed on time: late nights, in addition to a multitude of health effects, may lead to obesity and diabetes.

Countless studies have shown the negative effects of sleep loss and sleep deprivation, but a new one from a Swedish team suggests that even one night of missed snoozing can have long-lasting effects on your genes.

The study, which points to specific “clock” genes--components of the circadian rhythm found throughout the body that act like tiny clocks to synchronize our internal master clock--in muscle and adipose tissues, suggests that a missed night of sleep throws our metabolism for a loop, and can lead to increased risks of obesity and diabetes.

“We had this idea that we could induce these quick genetic changes because at the time there also came a study from one of the collaborators of this study that if you exercise at high enough levels, you can induce these genetic changes in your muscle,” says Jonathan Cedernaes, a neuroscientist at Uppsala University in Sweden and the lead author of the study. “So we wanted to see whether sleep loss, which is a different kind of stressor and a negative one, could also lead to these kinds of changes.”

Clock genes are essential to controlling how our tissues work as they regulate the on-off function of many metabolic processes and perform this job in a timed fashion, says Cedernaes. Some processes are turned on during the day when you are eating while some happen at night when you are fasting and your body is repairing itself. By staying awake through the night, a typical scenario for shift workers, you are inducing what is known as circadian misalignment--where your internal circadian rhythm is thrown off.

The study focused on the regulation of these genetic clocks to see if misalignment also occurred. Cedernaes studied a group of young, similarly active and built men. Before the study, they made sure they had normal activity patterns, meaning they had regular sleep habits and food intake.

During the two-night study, they gave the participants one night to adapt to their new environment before they began their night of sleep deprivation. On the second night, they randomized the participants into two groups; one group stayed up all night and the other, acting as the control, got a normal night of sleep. After each night, researchers took blood samples as well as fat tissue samples from the abdomen. They found extreme changes in the genes of the deprived subject’s metabolism--specifically, they found impaired glucose tolerance. “This is pretty exciting that all of this happened after one night of sleep loss,” says Cedernaes.

That’s bad news for people like shift workers, who may take on the occasional overnight work for extra money, or the hourly employees who do night-time rotations on occasion.

Furthermore, while the study participants fasted all night, Cedernaes thinks it could have compounded the problem if the subjects were continuing to eat as most people do during shifts. Studies in rats showed that rats who were fed off of their normal feeding times suffered worse complications than those that were fed on a normal schedule. “There’s also a large set of literature from animal studies suggesting that if you [eat] at the wrong time, as often happens to shift workers, there will be additional consequences,” says Cedernaes.

He says that light has also been known to shift circadian rhythms as well as the presence of melatonin. While that wasn’t the focus of the study, it’s definitely clear that things like screens and fluorescent lights adversely affect those who are sleep deprived. In fact, that’s the next goal of the research group: to continue to study multiple factors--including the impact of light and diet--and begin to assemble a larger picture of what happens to your body when your circadian rhythm has been altered, even by one night of sleep.

He also says there’s some precedent to believe that while negative effects come rather quickly, the switch back may not happen as fast. “It could certainly be the case that though they’re induced quickly, they’re not reversed [as] quickly.” Cedernaes plans to look at whether shift work or other kinds of sleep loss paradigms have lasting effects that can be noticed by analyzing someone’s genome. In other words, the damage from those all-nighters in college or those cheap red-eye flights may already be done. Or at least that’s the hypothesis Cedernaes and his colleagues have.

“There are hints to that,” he says. “If you look at someone who’s worked shifts even if it’s in the past, there is some chronic exposure risk that’s been linked to sleep loss.”

So close the laptop on time tonight, because you might end up regretting it for years to come.

Aston Martin Vulcan Will Race Tomorrow

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This weekend is the Spa 24 Hours, the highlight of the Blancpain Endurance Series, and this year a number of teams will be competing using the Aston Martin V12 Vantage GT3 race car. Another Aston Martin will be present at the Belgian race, though, and that’s the limited edition Vulcan track car.

Fresh from its dynamic debut at the recent Goodwood Festival of Speed, the 800-plus-horsepower Vulcan will complete two laps of the 4.35-mile Spa Francorchamps circuit located in the beautiful Ardennes, with works driver Darren Turner behind the wheel. There are few official lap times for Spa, but Koenigsegg’s One:1 supercar recently lapped the circuit in 2:32.14.

The Vulcan isn’t quite as powerful as the 1,341-hp One:1 but since it wasn’t intended for the street its design hasn’t been compromised by needing to conform with any road car regulations.

In case you’ve forgotten, the Vulcan is powered by a unique 7.0-liter V-12 and is made almost completely from carbon fiber. Aston Martin states that the car has more than 800 hp, and that it will sprint to 60 mph in less than 3.0 seconds and reach a top speed in excess of 200 mph. Just 24 examples will be built to celebrate Aston Martin’sparticipation in various 24-hour races.

The Vulcan will head out onto the track on Saturday, July 25 at 2:10 p.m. local time. The Spa 24 Hours will get underway roughly two hours later. Fans can watch live on the Blancpain Endurance Series YouTube channel GTWorld.

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Latest Pics From New Horizons Reveal Flowing Ices And Pluto's Dark Side

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New Horizons says goodbye to Pluto

New Horizons says goodbye to Pluto

Sayonara, Pluto! This image was captured by NASA's New Horizons spacecraft from 1.25 million miles away on July 15th, immediately following its flyby of the dwarf planet. Pluto appears in silhouette, backlit by the Sun, while the white outline is the haze in Pluto's atmosphere, which has been revealed by New Horizons to be several times thicker than previously estimated. In fact, there are two distinct levels of haze visible in the new images, one at 30 miles above Pluto's surface and another at 50 miles above.

Beamed across billions of miles and a very narrow bandwidth, the latest images from the Pluto flyby were worth waiting for. One reveals the view from New Horizons after it sped past Pluto and looked back to study its atmosphere. “This is our equivalent on New Horizons of the Apollo 11 earthrise,” says New Horizons' Alan Stern.

It is both beautiful and mysterious. Backlighting by the sun shows that Pluto's atmosphere is about four times taller than scientists thought was possible. It has two distinct layers of haze--one at 30 miles above the surface, and another at 50 miles. The haze extends to about 80 miles out, whereas scientists previously thought that it could only extend to 20 miles.

From a NASA press release:

Models suggest that the hazes form when ultraviolet sunlight breaks apart methane gas, a simple hydrocarbon known to reside throughout Pluto’s atmosphere. The breakdown of methane triggers the buildup of more complex hydrocarbon gases, such as ethylene and acetylene, which were also discovered at Pluto by New Horizons. As these hydrocarbons fall to the lower, colder parts of the atmosphere, they condense as ice particles, forming the hazes. Ultraviolent sunlight chemically converts hazes into tholins, the dark hydrocarbons that color Pluto’s surface.

Another image suggests that ice sheets have scraped across Pluto's "Sputnik Plains" sometime in recent history--within the last 10s of millions of years--and may still be doing so today. So far, evidence of this phenomenon has only ever been observed on Earth and Mars. "From what we know of the heat flow coming from interior, there's no reason that this stuff cannot be going on today," said New Horizons' Bill McKinnon.

Flowing ice on Pluto

Flowing ice on Pluto

Images of Pluto's surface captured by NASA's New Horizons spacecraft reveal that a giant sheet of ice recently flowed — and could still be flowing now — in a plain in the western half of Pluto's "heart," also known as Tombaugh Regio.

The image shows an area that's about 250 miles across. It shows evidence of deep and extensive erosion, while the top shows evidence of a viscous ice flow filling in a crater. "The plains seem to have moved and surrounded the mountains," said McKinnon. "To see evidence of recent geological activity is a dream come true."

Flowing Ices On Pluto

NASA/JHUAPL/SwRI

You can fly over Sputnik Planum in this NASA video:

Our map of Pluto is starting to get pretty detailed now:

Pluto's mountains contain a Cthulhu

Pluto's mountains contain a Cthulhu

Among the many fun new names given to features of Pluto's landscape that were revealed by NASA's New Horizons spacecraft is an especially eye-popping one: Cthulhu, the name given to the dark, heavily-cratered region on Pluto's southern hemisphere and a reference to the fictional ancient, squid-faced "Elder God" deity created by sci-fi writer H.P. Lovecraft.

And speaking of detail, remember that incredible image of Pluto's heart that New Horizons sent back just before the flyby? Well, it just got even better.

This is our best image of Pluto yet

This is our best image of Pluto yet

A global mosaic of Pluto captured by NASA's New Horizons spacecraft and released on July 24 reveals Pluto and its distinctive heart-shaped feature in more eye-popping detail than ever captured. The image was created by combining four separate captures from the Long Range Reconnaissance Imager (LORRI) with color data from the Ralph Instrument on New Horizons, and contains twice the amount of detail compared to the view captured on July 13.

Kindergarteners Who Share May Be Successful in the Long Run

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sharing kids

Gemsling, via flickr (https://www.flickr.com/photos/gemsling/338385210/)

Kindergarteners who can share and cooperate are more likely to be employed, out of legal trouble and not abusing drugs when they're 25, a new study shows.

For decades, researchers and parents have wondered which attributes for kids led to a happy, successful life and which put kids on a path to a darker future. Now, they may be one step closer to figuring out how to set young children on the path to attainment – and it looks a lot like sharing, listening and cooperation.

Researchers analyzed what happened to nearly 800 kindergarteners from four locations after their teachers measured their social competency skills in 1991. The children were evaluated on a range of social behaviors, such as whether they resolve peer problems, listen to others, share materials, cooperate, and are helpful. Each student then received a composite score representing his or her overall level of positive social skills, on a scale from 0 (“not at all”) to 4 (“very well”).

The research team monitored these students and monitored how they were doing – with employment, substance abuse or run-ins with the law – until they were 25.

What they found surprised them: for each point higher on the scale of social skills, a child was twice as likely to attain a college degree in early adulthood; 54% more likely to earn a high school diploma; and 46% more likely to have a full-time job at the age of 25. The results were published last week in the American Journal of Public Health.

Moreover, the results show the predictive power of social skills independent of other factors like neighborhood quality, socioeconomic status or early academic ability. The researchers note while these variables are predictive of some adult outcomes, there is a special power to social competence.

So what exactly are these skills? Study author Damon Jones says that social competence is more than just behavior. The items on the scale include: how well the child resolved peer problems, understood feelings, acted helpful to others or cooperated. “These early skills are vital, not just in school but in life – and kindergarten is a critical time for developing social competence,” he said.

When looking at the class as a whole, teachers tend to create a bell curve with these ratings, with some kids falling low and others high, with the majority somewhere in the middle. One potential challenge of the study was that it relied on self-reported data from the kindergarten teachers, who could have biases against certain students.

The good news is the skills are malleable, and there are programs that help kids boost their ratings of social competence. Money put into programs that help at-risk kids get better at sharing and cooperating may save society the costs of incarceration or substance abuse treatment.

In the future, Jones hopes to untie the paths that kids go through between kindergarten and age 25. How do the social skills translate in middle school, for example? “It’s a very complicated process, where you can think that each year of development, something will influences the next step.”


World’s First Malaria Vaccine Takes Another Step Forward

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Flckr CC by Yasser

Malaria is often transmitted through mosquitoes that are infected with the parasite, Plasmodium falciparum.

The world’s first malaria vaccine was given a positive opinion by the European Medicines Agency--Europe’s drug regulator, comparable to the FDA--according to an announcement made today by GlaxoSmithKline, the vaccine’s maker. The positive review does not mean that the vaccine is approved for use. Rather, the WHO will now take this opinion into consideration when they come up with their own recommendation. If the vaccine gains approval from the WHO, then GlaxoSmithKline will market the drug to individual African countries.

The EMA says the vaccine, Mosquirix, is safe for use in children aged 6 weeks to 17 months. Another experimental malaria vaccine in the works, called PfSPZ, was also found to have a positive effect, but it has yet to reach this stage in the approval process.

Mosquirix, also called RTS,S, helps protect against infection with the Plasmodium falciparum parasite, the deadliest of the four parasite species that infect humans and cause malaria. The vaccine aims to boost the immune system to fight the parasite, specifically to prevent the parasite from infecting the liver. Typically, the parasite infects the liver first, multiplies there, and then re-enters the bloodstream to infect red blood cells, prompting symptoms to occur.

Its success is not without limitations. At the end of the trial, four doses of the vaccine reduced the cases of malaria by just 39 percent in children aged 5 to 17 months over a four-year follow-up period and by 27 percent over a three-year follow-up period in infants. “While RTS,S on its own is not the complete answer to malaria, its use alongside those interventions currently available such as bed nets and insecticides, would provide a very meaningful contribution to controlling the impact of malaria on children in those African communities that need it the most,” said Andrew Witty, the CEO of GlaxoSmithKline, in the press release.

"This is not the big game-changer that we were hoping for," Martin De Smet, a malaria expert at Doctors Without Borders, told the AP. But malaria remains one of the world’s most severe health problems, especially in regions across Africa. In 2012, malaria accounted for 627,000 deaths, and 91 percent of the deaths from malaria in 2010 were in Africa, according to the CDC. De Smet remains hopeful though. "The vaccine itself remains disappointing but this is an important step forward," he said.

The WHO is expected to make an assessment about the use of the vaccine by November of this year.

Huggy Snakes, More Pluto, And Other Amazing Images Of The Week

Unreal Engine 4 Is Showing Gamers What High-Powered Nostalgia Looks Like

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The eternal fires of nostalgia have been burning a little brighter these past few weeks, fueled by videos from modders rebooting the classics on video game development suite Unreal Engine 4. Pokémon, Mario, Link and Sonic all received demo videos, where the fan favorites ran, hopped, and fire-breathed through gorgeous, dynamic landscapes made possible by Unreal’s ever-evolving tools.

Earlier this year, Unreal Engine 4 was made free to the public, barring upon release that Unreal receives a 5 percent royalty. Now, we’re beginning to see the tinkerers and modders throw their hats into the development ring, cooking up hyperrealistic versions of classic video games.

Pokémon’s original three starters, Charmander, Squirtle and Bulbasaur are seen back together; we get to follow Charmander around as he explores a sparse forest and desperately attempts to use Ember on some deer.

Modder CryZENx shows everyone’s favorite 8-bit plumber, Mario, taking a ride in a through space and explore dark, Skyrim-esque caves, while Sonic the Hedgehog sprints through grassy plains.

The Legend of Zelda even gets the royal treatment, as we see Link reunited with the Great Deku Tree.

These teasers are system-intensive, though, so don't expect to be cranking them out on your laptop anytime soon. By the specs shown in the videos, this level of rendering almost maxes top of the line hardware, like an overclocked EVGA GTX 980 video card and i7 4790K processor.

Unreal Engine 4 can also develop for virtual reality, and this week HammerheadVR Studios released a fan trailer for a Star Wars VR game. The company says that the trailer was completed in two weeks with only two designers.

The design suite isn’t just for modders and small developers, though. Big titles like EVE: Valkyrie and Street Figher V are being developed on the platform, and huge franchises like Mass Effect and Borderlands were built using Unreal Engine 3.

None of the games mentioned here are slated to be made, though, so we’ll just have to rely on the nostalgia from Kingdom Hearts 3 (made on Unreal Engine 4) until the studios finally come around.

Flood-proof Testing

Watch Mythbusters Slice Open A Chicken With A Drone Rotor

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Can a hobby drone by itself kill a person? Not an armed, military drone; those we already know can kill humans, and have done so in the thousands, but an off-the-shelf, commercial drone, without any additional armament. Even with the historical precedent, Mythbusters set out to see if spinning quadcopter blades are strong enough to cut flesh.

Watch them send a spinning quadcopter blade through the body of an already-dead chicken below:

Fast-spinning blades, when pressed into a soft body, tend to cause damage. The gash they carve into already-dead chicken shows the potential for serious harm, though in the wild it wouldn’t necessarily play out this way: wild birds have attacked drones and brought them down, and escaped seemingly without injury.

Chicken flesh isn’t a perfect analog to human tissue. Ballistic gelatin is a lot closer, and thanks to its transparency frequently used for demonstrating bullet impacts. Since that clarity isn’t needed to show cuts, next time Mythbusters decides to show a drone blade slicing, they could follow the example of this German-made stabbing robot and use a pig carcass instead.

[io9]

Finding Out How Boa Constrictors Kill (It's Not How You Think)

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Boa-constrictor

Boa Constrictor

Christian Mehlführer (Licensed under CC BY 2.5 via Wikimedia Commons) https://commons.wikimedia.org/wiki/File:MC_Haiti-Boa.jpg#/media/File:MC_Haiti-Boa.jpg

It’s a nighmarish situation: A gigantic snake slowly curls around your body, enveloping you in its slithery embrace. You begin seeing stars, and start gasping for breath. But your life will not end because you’re suffocating. Actually, it’s more like you’re having your insides squeezed shut.

A new study confirms that boa constrictors and other crushing snakes don’t suffocate their prey after all. They cut off blood flow, resulting in rapid organ shutdown and a quick (though likely not painless) death.

About 20 years ago, herpetologist Dave Hardy and colleagues theorized that a crushing snake’s prey dies much too rapidly for suffocation to be the cause. But nobody had tested what actually happens in the body of a crushed prey. Scott Boback of Dickinson College in Carlisle, Penn., set out to prove it once and for all.

In a new study, he and colleagues report measuring blood pressure in rats in the process of being squeezed.

To prevent each sacrificial rat from suffering, they anesthetized it first. Then they inserted heart and blood pressure monitors and offered the rat to a hungry boa constrictor. Within six seconds of being bitten and wrapped up, the animal’s arterial blood pressure dropped by half, and its central venous pressure — the return supply — increased six-fold, the study says. The blood couldn’t flow, and the animal’s internal organs started shutting down.

“I remember being in the room and the students were looking at the data in disbelief that it happened that fast,” Boback says in a statement. “We could see the arterial pressure go down, the venous pressure go up and we could see this right when the snake was doing it.”

In repeated experiments, using 24 rats in all, some of the snakes also looped their bodies around the rats’ abdomens. Pressure around the abdominal cavity has been shown to dramatically diminish the heart’s output, the researchers say. Either direct pressure on the heart, via constriction of the thoracic region, or constriction of the abdominal cavity induces the 6-fold increase in venous pressure.

As soon as circulation effectively stopped, the team watched the rat’s heart begin beating irregularly. They surmise that the pressure of constriction stops blood from flowing to vital organs, which begin shutting down.

In previous work, the same team noticed that snakes can apparently detect their prey’s heartbeat while constricting, and can gauge how much work they have to do to finish it off. This work suggests “snakes may actually be inducing pulseless electrical activity and therefore release prey precisely when they have achieved irreversible cardiac failure,” they write. This trait — quickly dispatching lunch while expending the minimum required effort — enables snakes to eat prey much larger than themselves, the authors note.

“By understanding the mechanisms of how constriction kills, we gain a greater appreciation for the efficiency of this behaviour and the benefit it provided early snakes,” Boback says.

The research appears in this month’s issue of the Journal of Experimental Biology.

Reference: Boback, S. M., McCann, K. J., Wood, K. A., McNeal, P. M., Blankenship, E. L. and Zwemer, C. F. (2014). Snake constriction rapidly induces circulatory arrest in rats. J. Exp. Biol. 218, 2279-2288.

Watch The Royal Navy Launch A 3D Printed Drone From Ship

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Firing 3D Printed Rocket Boosters

Firing 3D Printed Rocket Boosters

Raytheon

Before the first warship ever set sail, its crew was faced with a serious constraint: limited space. Through centuries, navies have improved on that front, with dense foods, hammocks or bunkbeds layered tight, and with careful planning of what precisely is needed, plus a fleet of logistical resupply ships to fetch spare parts as needed. On that last front, the future offers a bold possibility: 3D printing what’s needed, storing only the raw material for the printer instead of a highly specialized selection of one-use parts.

What might a navy of tomorrow want to print? Drones, for example. In 2011, the University of Southampton successfully 3D printed a drone, the lightweight SULSA. Recently they then launched that drone from the deck of the HMS Mersey, a small patrol ship, and it successfully flew the approximately 1500 feet to shore.

Watch the flight from the drone’s perspective below:

While the SULSA wasn’t printed onboard the ship itself, it likely could have been. The ability to print drones on demand from a common reserve means small ships like the Mersey could do much more than their size suggests. What if, instead of printing a small flying scout, they wanted to make something a little bit deadlier, like a missile?

Defense giant Raytheon claims they’re almost there. From a press release updated earlier this month:

“There are folks in industry printing warheads,” said [Raytheon engineer] Danforth. “We are printing demos of many of the seeker components. And we demonstrated a printed rocket motor. We’ve already printed 80 percent of what would go into a missile.”

This flexibility something the defense industry and the military are actively working on. Tomorrow’s seamen may set forth not knowing if their next mission will require the explosive force of missiles or the scouting eyes of a drone. Of course, they'll still need to know in advance which they'll need. 3D printing can be a slow process, and no one wants the printer to mess up while making a missile in the middle of a battle.


Scientists Can Now Turn Organic Cells Into Tiny Lasers

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Matjaž Humar and Seok Hyun Yun

Scientists injected cells with polystyrene beads (green), to make them into tiny lasers.

In the past few months we’ve seen laser internet in the sky and laser-generated holograms, but now lasers are going where they’ve never gone before: inside us.

The medical field has been using lasers externally for years in refractive eye surgery and to remove tissue. This helps surgeons accomplish more complex tasks while reducing discomfort and infection, according to the FDA. Now, researchers at Harvard Medical school have devised a method to actually create lasers internally, within cells themselves. While they're not strong enough to burn away tissue or correct eyesight, these little internal pulses of energy could be used to target cancer cells or deliver medicine directly to infected tissue.

Matjaž Humar and Seok Hyun Yun

An optical fibre is used to test the cell's laser capabilities.

Seok Hyun Yun, a co-author of the study, says you need three things to build a laser: a pump that makes the light, a resonator or cavity that traps the light, and a gain medium that amplifies light to a specific wavelength.

By injecting a tiny microresonator (which could be a natural fat, oil, or polystyrene bead) and sometimes a dye within the cell to serve as the gain medium, the Harvard team was able make the cell emit laser light, in nanosecond bursts, when stimulated with an outside pump light.

Matjaž Humar and Seok Hyun Yun

Oil droplets (red) injected into cells to be used as deformable lasers.

Using this technique in various assortments, and using components already in cells like fat, the researchers were able to create microlasers within the polystyrene beads, on the surface of the beads, and in the fluid of the cells themselves. The amount of energy put out by the microlasers is measured in the nanojoules and even if many were set off at the same time, they wouldn't be able to cause harm, says Yun. The microlasers’ light exists on a very specific spectrum, with wavelengths around 400-450 nanometers. Because of their specific and distinct wavelengths, these lasers are far easier to distinguish than other forms of bioluminescence, making the laser-lit cells easily distinguishable on scans and even through skin.

Seok Yun and Matjaž Humar

The microlasers' wavelengths make them easier to distinguish than traditional bioluminescence.

Yun says the microlasers have great potential for cell labeling and drug delivery. In the future, they could be used to trigger a targeted, light-activated drug in a specific part of the body. Individual cells can also be tagged by altering fluorescent polystyrene beads, meaning there’s almost an infinite amount of tags that can be applied within the body. Tests have only been conducted in pig skin so far, but the researchers see this study as a small step down a long road to viable internal laser technology.

Voyager’s Golden Record For Aliens Now Available On SoundCloud

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Golden Record

Golden Record

When the twin Voyager spacecraft launched in 1977, they carried with them two Golden Records encoded with the sounds of Earth. As the spacecraft flew past Jupiter, Saturn, Uranus, Neptune, and out to the edge of interstellar space, the Golden Records were intended to serve as a greeting to any extraterrestrials the spacecraft might encounter along the way—like a "bottle in the cosmic ocean," as the late astronomer Carl Sagan put it. Among the sounds selected to represent all of humanity were recordings of rain, a mother and child, stone tools, a heartbeat, and more.

Even if you’re not an alien with a golden record player, you can listen to these emotional and thought-provoking sounds, too. The recordings have been online for years now as clunky individual sound clips. But now, for the first time they’re actually easy to listen to—NASA just uploaded them to SoundCloud. So instead of clicking back and forth to hear the different tracks on NASA’s clunky audio player, you can just zen out and listen to a continuous stream of clips. Oh, the humanity.

[H/T: Isaiah Saxon/Ray Cat]

German Students Set New Electric Car Speed Record

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Here in the States we talk about 0-60-mph runs when it comes to discussing the specs and performance of your average performance machine. Across the pond, our enthusiast friends who smartly embrace the metric system, measure a nearly similar jaunt as a car travels from 0 to 100 kilometers per hour. Translated to America-speak, that works out to a 0-62-mph blast.

Well, there's a brand new record in this space, and it's blisteringly quick.

Hailing from the University of Stuttgart, in Germany, the Green Team Formula students have created an electric vehicle that can run from 0 to 62 milers per hour in just 1.779 seconds. That's seemingly impossibly quick, especially when you compare that figure against all manner of hyperexotic street cars and even top-tier race cars. The Porsche 918 Spyder can make the trip in just 2.5 seconds, depending on who is doing the driving and the timing. An Ariel Atom 500—you know, the one with the 3.0-liter V-8—can apparently rip off a 2.3-second run. A modern F1 car can usually make the 0-60-mph run in just over two seconds.

How was the Green Team able to produce a vehicle that bests all of those other vehicles? By running a fully-electric vehicle equipped with all-wheel-drive. The torque from the four electric motors is sent instantly to all four wheels. Couple that with the extremely low curb weight of nearly 353 pounds, and you have a recipe for tremendous acceleration. The vehicle we're dealing with has a fantastic power-to-weight ratio, besting that of the aforementioned Porsche as well as the mighty Bugatti Veyron.

Really, there are few vehicles that accelerate more quickly than this. Top Fuel Dragsters will win the race to 60 miles per hour or 100 kilometers per hour, but those are the fastest accelerating things outside of vehicles capable of leaving this planet. They can make the 0-60-mph dash in around half a second but can't really be driven like a normal car.

For the German students and their amazing machine, we tip our caps and salute you. This is one heck of an achievement, and we hope others seek new ways to push the record even further. We do know of an electric Datsun nicknamed the White Zombie out there that could run to 60 in 1.8 seconds.

Is there more out there? We hope to find out.

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Uber Delivers Ice Cream By Drone In Shenzen

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Phantom 3 Quadcopter

Phantom 3 Quadcopter

DJI, via Wikimedia Commons CC BY-SA 3.0

Uber, the ever-expanding app-driven taxi alternative, has a keen eye for clever publicity. In Washington, DC, where the author resides, Uber has held multiple promotions involving the delivery of cats and dogs for brief mid-day playdates. In New York, an Uber pedicab carted around the titular throne from Game of Thrones. In Shenzen, China, Uber combined their marketing savvy with the surefire draw of gimmick drones and ice cream.

Look at how happy this drone is:

The drones were Phantom 3 quadcopters, provided and flown by China-based drone giant DJI, which is headquartered in Shenzen. The drones flown came complete with safety guards on the rotors to prevent any accidental injuries.

Sarcasm May Make You More Creative

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Sarcastic Wolf

Know Your Meme

The Sarcastic Wolf--which emerged in 2013--shows a blank-eyed wolf, meant to embody sarcasm.

If you've ever doled out a sarcastic joke to a sensitive friend, you know all too well the consequences of its crass nature. But new research from Harvard Business school suggests that the processes involved with initiating and delivering a sarcastic comment may improve the creativity and cognitive functioning of both the commenter and the recipient. Their findings were published this past week in the journal Organizational Behavior and Human Decision Processes.

To figure out if sarcasm could affect cognitive functioning, the researchers assigned participants to one of three groups to have simulated sarcastic, sincere, or neutral dialogues by responding to pre-written responses showed to them on a piece of paper as vignettes. Immediately after these conversations, they put the participants up to tasks which tested their creativity. The researchers found that those who were placed in the sarcastic conversation group fared better on creativity tasks than those in both the sincere and control conditions. They think that sarcasm may lead to greater cognitive function because in order to understand and convey a sarcastic comment, the brain uses creative thinking. This was true for both the person giving out the sarcastic comments as well as for those who were receiving them.

“This suggests that sarcasm has the potential to catalyze creativity in everyone,” said Francesca Gino, a professor of business administration at Harvard University and a co-author of the study. However, while the researchers agree that sarcasm and creativeness often go hand-in-hand, Gino points out that it is possible that naturally creative people may simply be more likely to use sarcasm, making sarcasm the outcome, not the cause of the relationship.

On a conversational level, the researchers also found that in order for the recipient to reap the rewards of a sarcastic conversation, both the expresser and the recipient of sarcasm must be able to overcome the contradiction between the literal and actual meanings of the sarcastic expressions, said Adam Galinsky, co-author and professor at Columbia University’s business school. In other words, if two really good friends are sarcastic towards one another, they will probably benefit from the conversation because they don’t take each other’s mean comments literally. On the other hand, if they weren’t friends, they wouldn’t know for sure if the other person was serious or not. “This is a process that activates and is facilitated by abstraction, which in turn promotes creative thinking,” Galinsky said.

The researchers hope these results will encourage people to take a new look at sarcasm and find the appropriate circumstances in which it can be used. They also hope to now study how specific kinds of sarcasm--sarcastic criticism, complements, or sarcastic bantering--as well as the content and tone in which they are spoken affects cognitive function. So for now, unless you know the individual very well, a sarcastic comment might not be the ideal way to put your best foot forward.

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