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Japan’s Stealth Fighter Will Fly For First Time Next Year

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ATD-X Wind Tunnel Model

ATD-X Wind Tunnel Model

Hunini via Wikimedia Commons CC BY-SA 4.0

Only a handful of countries have ever built and successfully flown a stealth fighter. Early next year, Japan may join their ranks, with scheduled test flights of its first experimental stealth fighter expected within the first three months of 2016. The Advanced Technology Demonstrator X, or ATD-X, is a tentative step forward into rare skies, and comes at a time when most of Japan's neighbors are either building or buying stealth fighters of their own.

Financial Review notes that Hirofumi Doi, a program manager at the Ministry of Defence, gave the timeframe for the flight in an interview in Tokyo. The plane is built by Japanese industrial giant Mitsubishi Heavy Industries. The 46-foot-long plane was developed at a cost of $440 million (or the cost of roughly three F-35s), and it’s been in the works for a while. Last year, we caught a grainy glimpse of the plane, and even if all goes well with the first flight, we shouldn’t expect it to enter service any time before the 2030s.

When it does, it will be just one of many potential stealth fighters based in the Eastern Pacific, including American F-22s and F-35s, the Russian PAK FA, China’s J-20 and J-31, and even Korean and Indian projects. The ATD-X is a possible replacement for Japan’s current fleet of F-16-derived F-2 fighters. And when it enters service, it will join a Japanese military that is still constitutionally prohibited from offensive war but has been robustly building its strength for decades.


Facebook Now Lets You Broadcast Your Own Live Streaming Video

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Live video on Facebook

Facebook

Facebook announced three big new features today for its mobile app: live streaming, photo and video montages called “Collages, and a new dropdown menu for updating your status. The features are initially restricted to iPhone users in the U.S., but will eventually come to Android users as well. Facebook also appears to be testing a new concert ticket purchasing feature in San Francisco, but that isn't widely available yet. Here's a rundown:

Live Video Sharing

Live streaming video apps have been a round for a few years, but the crazy really kicked off earlier this year with the app Meerkat, followed shortly by Twitter's Periscope, which allowed users to directly interact with their viewers. Never one to be one-upped, Facebook introduced the ability to livestream video in August with a feature called Live, but it was initially only for celebrities.

Facebook finally began rolling out Live for all users today. But right now, you can only do it if you’re a select iPhone user in the US.

To begin livestreaming, tap the “Update Status” button and choose the Live Video icon (it looks like a silhouette with two halos).

Much like Periscope, you can describe what you’re filming before the broadcast begins, as well as the number of viewers who are watching you and a live feed of comments. You’ll also have the option to be notified when the streamer you’re watching goes live again.

Unlike Periscope though, you’ll only be able to see the names of your friends who are watching you. Additionally broadcasts will automatically save to your timeline. Periscope videos-on-demand (or VODs) have to be downloaded as soon as a broadcast ends and are only able to be replayed for 24 hours.

Facebook Collages

Photo albums are so 2014 (or, so "almost 2015," at this point). Today Facebook introduced Collage, a new montage tool that lets you stitch together photos and videos. Collages are available for all iPhone users and are coming to Android in early 2016.

When you tap on the "Photo" button at the top of the Facebook app, your recent pictures and videos taken together will automatically be grouped into a new Collage. Facebook's algorithms will try to group the images and video in a way that makes sense, but you can edit it yourself by adding, removing or rearranging the content, as well as adding a title before you publish.

Google offers a similar feature in its free Google Photos app that also relies on artificial intelligence to group photos and images from the same time period or event.

Status Update Dropdown Menu

New Sharing Menu

Facebook

Now that Live is available as a status update, Facebook is testing a new status update menu for select Android and iPhone users. By tapping “What’s on your mind?” the menu will appear, and can contain any future sharing features Facebook creates in the future.

Concert Ticketing

Concert Ticketing

Buzzfeed News/Facebook

Originally reported by Buzzfeed News, you can now purchase concert tickets directly on Facebook.

Buzzfeed News writes that “[Facebook] is partnering with a small group of independent venues, artists and event promoters in the San Francisco Bay Area for the pilot.” On these select events pages, a “Buy Tickets” button will appear.

Ticket sales will be completed via third-party sites, so your purchase will happen outside of the social network. However, your confirmation email will go to the address you have listed on Facebook. Facebook will not receive any profits from the ticket sales.

While it remains to been if this feature actually expands widely to other markets or all of Facebook, the idea is a provocative one, and marks a new area of ambition for the social network. It may also prove challenging and even somewhat contradictory alongside Facebook Live, as other livestreaming apps have been used to broadcast concert footage, which could anger some musicians or event owners.

Still, taken together, the updates show that Facebook isn't resting on its laurels as the world's most popular social network with over 1.5 billion monthly active users. And if even a fraction of those users try out these new features, they could instantly create lots of new content on Facebook, and may even threaten Periscope as the current livestreaming app du jour.

Flexible Medical Sensors Made From Chewing Gum

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Chewing gum on your shoe? Annoying. Chewing gum as a medical device? Pretty cool.

As detailed in a paper published last month in ACS Applied Materials & Interfaces researchers have discovered they can make a sensor out of chewing gum and carbon nanotubes.

To create the sensor, the team had a researcher chew Doublemint gum for 30 minutes (science is so hard sometimes). That chewed gum was then soaked in ethanol to clean it, and imbued with carbon nanotubes, tiny flexible pieces of carbon that can conduct electricity. The new sensors will eventually be able to monitor small body movements, like the rise and fall of your chest as you breathe, or the tiny movement of blood through your body as your heart pumps. Just like sensors made from other materials, in order to record such tiny movements, the sensor is hooked up to a conventional monitoring device, which measures the desired trait (like heartbeat or breathing).

These new sensors have an advantage over more traditional metal sensors, and even over other flexible plastic sensors. Unlike either, they can move with the person being monitored without losing their efficacy. The researchers also found that the nanotube-laced gum could record humidity at small levels, like the cloud of moisture in a human breath. Humidity measurements could make it possible for doctors to more effectively monitor patients' breathing in the future, and the stretchy durability of these new sensors could make them valuable in the world of wearable monitoring devices. An added bonus? Forbes reports that the sensors only cost about $3.

See the stretchy new sensors in action in a video released earlier this week:

Here’s What Happens To Your Body If You Eat Too Much Salt

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Table salt

Healthy in moderation

Salt does more than just make your food taste more delicious—it’s important for your body to function properly. Sodium, one of the key ingredients in table salt, regulates blood flow and pressure, and helps transmit messages between nerves and muscle fibers. Chloride, the other chemical in table salt, aids in digestion. Foods in your diet need to have enough salt replenish these nutrients to keep you healthy.

But too much salt can be bad for you. Processed foods are packed with the stuff; restaurants add more salt to their food to make it taste better. As a result, more Americans are eating high-sodium diets (sometimes without even knowing it), which has some pretty drastic effects on their health.

When you consume too much sodium in your diet, your body holds extra water. That’s because the kidneys, which filter out waste from the blood, maintain a special ratio of electrolytes, such as sodium to potassium, to water.

More salt in the diet means the kidneys keep more water in the system. That can have lots of undesirable effects, such as edema (swelling in places like the hands, arms, feet, ankles, and legs); more fluid in general means more blood coursing through veins and arteries. Over time, that causes them to stiffen, which could lead to high blood pressure and hypertension.

You probably already know that salt can make you thirsty—that’s the body’s way of trying to correct that sodium-water ratio. Drinking lots of water can exacerbate issues of edema and blood pressure. But not drinking enough could force the body to draw water out of other cells, making you dehydrated.

People who consume high-sodium diets usually urinate more because of all the excess water. Every time you urinate, your body loses calcium, the mineral that, among other things, makes strong bones and teeth; urinate too often and the body could lose too much calcium, weakening bones and exacerbating osteoporosis.

New York City's sodium warning label

Then there are the effects that no one quite understands. Some studies have found that excess salt brings on stomach ulcers, infections, and may even hasten stomach cancer. No one is quite sure why, but some researchers suspect that the sodium may disrupt the stomach’s mucus lining, according to Live Strong.

Salt can negatively impact your cognitive function, too, according to a 2010 study. That study was purely observational, so the researchers don’t hypothesize why that might be happening.

The evidence is clear: Too much salt can have serious long-term health implications. But lots of people eat diets in which the sodium intake far exceeds the daily-recommended value of 2,300 milligrams. In an effort to better inform the public, New York City decided earlier last fall that it would require restaurants to mark dishes on their menus that exceeded the daily-recommended sodium intake; the regulation goes into effect this week.

Hopefully, as a result, New Yorkers can be more aware of the salt they consume, adjust their diets accordingly, and be healthier as a result. As for everyone else: it probably wouldn't hurt to pay closer attention to your salt intake.

Can A Smarter Gun Prevent A Massacre?

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Smart gun prototype

Don Sebastian and NJIT

In the wake of another mass murder in the United States, which left 14 people dead at a holiday party in San Bernardino, California, plenty of smart people are asking: What can we do to stop the shooting?

Any mention of gun control is met with Second Amendment outrage. Criminal background checks have proved fallible (as in the Charleston, South Carolina church shooting this summer). And no amount of mental health screening seems to work either. One solution to gun violence, however, has been sitting in a cabinet in a New Jersey lab for nearly a decade.

Michael Recce, a former Intel engineer, designed one of the most novel smart guns ever conceived in the early 2000s. It relies on what's called reflexive behavior. Our brains are wired to perform certain tasks the same way each time, whether it's swinging a golf club or signing our names. We unwittingly apply the same pressure, the same stroke, the same follow-through.

Recce's technology recognizes those factors for each gun owner, along with biometrics like the size of your hand and the distribution of length among your fingers, to make a gun that will only fire when its owner is holding it. With the help of the New Jersey Institute of Technology (NJIT), he and a few others have been trying to get it made ever since.

"We proved that your pressure the gun grip, when pulling the trigger, is the summation of brain and physical activity, and that it happens the same way every time," says Donald Sebastian, NJIT's senior vice president of research and development. and the man tasked with bringing Recce's gun to consumers.

Smart gun technology

Don Sebastian and NJIT

Gun owners have balked at other smart guns because of their fallibility in emergencies. A weapon that requires an owner's fingerprint to fire may not line up when faced with a home intruder and an unsteady hand. Guns that use radio frequency identification technology require the owner to wear an RFID chip on a wrist band, which might get lost or be hard to find in a crisis. But Recce's gun actually knows it's owner.

And that type of technology would have prevented Adam Lanza from firing his mother's Bushmaster AR-15 rifle inside the Sandy Hook elementary school in 2012. It could have stopped Dylan Klebold and Eric Harris from gunning down 15 fellow students at Columbine in 1999 with guns bought by a friend. It would have left two New York City cops alive instead of executed in their squad car, in 2014, by a career criminal using a stolen handgun.

And it might have prevented the California slaughter, carried out by a couple using two assault rifles bought by another person. (It is still not clear how the couple obtained those guns.)

Illegal guns are used in one third of all mass shootings, according to Mother Jones, which looked at 62 such incidents that took place between 1982 through 2012. It found that less than a quarter of the 143 weapons used in the killings were legally-obtained guns. The majority, of course, were legal.

While no reliable figures exist on the number of illegal guns on America's streets, consider just one city: Chicago. In the first six months of this year, cops took 3,470 illegal guns off the street. Two years ago, in a special report on gun violence, the Department of Justice noted that 40 percent of state and federal inmates told researchers in 2004 that they had obtained their guns on the black market, from drug dealers, or by stealing them.

The technology in Recce's gun, which can be fitted to assault rifles, would make those guns useless to those criminals. Even if privately re-sold, Sebastian says the weapon, in theory, would require reauthorization through a licensed dealer.

That the technology isn't already on gun store shelves is a problem of politics and money. After the NJIT received $1.5 million a decade ago to develop the biometric sensors, and another $250,000 to create the control system that blocks the firing mechanism during unauthorized use, the money has dried up.

"We lost all the public [funding] and we can't get private funding because no one believes pro-gun activists would ever allow this smart gun to see the light of day," says Sebastian. It's happened before. In 2014, German gunmaker Armatix introduced a .22 caliber smart gun that uses RFID technology and found dealers in California and Maryland willing to sell it. That is, until protests and death threats forced those same stores to remove the iP1 from their shelves (Armatix filed for a chapter 11-style restructuring earlier this year).

Still, with the proper funding, Sebastian believes, NJIT could produce a field-tested, evaluated, and ready-for-market smart gun in two years. It could also produce grips and firing mechanisms that could be retroactively installed on other guns. And it's the type of personalized technology that gun owners might actually find palatable.

But until the cash flows from investors or donors, the smart gun's disassembled parts continue to sit in a cabinet drawer. It doesn't even have a production name. "I don't care if you call it Aunt Sally," says Sebastian. He just wants to see it get made.

Making Data Shareable

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Photo Credit: Simos Xenitellis via Wikimedia Commons

Project: CitSci.org

While the citizen science movement has grown by leaps and bounds in the last decade, there is still much untapped possibility. A special platform of tools seeks to extract as much value as possible from citizen science projects.

Called CitSci.org, the site hopes to standardize how data is collected, stored, and annotated. "Citizen science projects have the potential to advance science by increasing the volume and variety of data, as well as innovation," said the site creators, Yiwei Wang, Nicole Kaplan, Greg Newman, and Russell Scarpino. "Yet this potential has not been fully realized, in part because citizen science data are typically not widely shared and reused...We can increase confidence in (and reuse of) citizen science data by offering project coordinators improved and easy-to-use tools to document and generate associated metadata."

The site allows you to create projects, datasheets, set your own protocols, create plots, do data analysis, and build reports. All of the tools and data storage are provided free.

The site has been growing in popularity, beginning with just a handful of projects added in 2006, to handling 200 new projects in 2015. It is now also a site for citizen science researchers to learn more about citizen science. "Researchers in academia investigate the workings of CitSci.org in order to better understand the process of citizen science and the quality of data that emerges. In addition to learning more about citizen science, other researchers use the results found from posted projects to complete meta-analyses."

To use the site, simply register at this page.

Chandra Clarke is a Webby Honoree-winning blogger, a successful entrepreneur, and an author. Her book Be the Change: Saving the World with Citizen Science is available at Amazon. You can connect with her on Twitter @chandraclarke.

New Drone Movie Trailer Asks Ancient Question With Modern Technology

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A Reaper In *Eye In The Sky*

A Reaper In Eye In The Sky

Screenshot by author, from YouTube

Napoleonic battlefields were smoky, smoggy places, covered in the blackpowder clouds that were the by-product of musket volleys. Dubbed “fog of war,” the term persists in military circles--even after the literal fog itself was engineered away with smokeless powder--as a way to describe the uncertainty of what is happening in a battlefield. The first trailer for Eye In The Sky, a new film about drone warfare starring Helen Mirren and Aaron Paul, bypasses the fog of war and gives us instead a different moral quandary: What if we have perfect information about a battlefield, and still make the wrong choice?

The film, a British production directed by Gavin Hood (who also helmed Ender’s Game), focuses on a fictional counter-terror operation in Kenya. The operation is commanded by Helen Mirren’s Colonel Katherine Powell, who sets it up as a capture mission. Assisting her are American drone pilots (from the creatively named “Drone Ops Command” in Nevada), specifically the cautious Steve Watts, played by Breaking Bad alumni Aaron Paul. Alan Rickman is also there.

They are joined by an array of robots, including a camera drone disguised as a bird and one that is the size and shape of a tiny beetle. These are various stages of real, with birddrones further along than insect drones. (Hummingbird-sized tiny drone helicopters are much further along than both, with the British military already using them and American special forces testing them out.) Above them all in Eye In The Sky flies an MQ-9 Reaper at 22,000 feet, armed with just two hellfire missiles.

When the beetle drone reveals a bed covered in suicide bomb best parts, the drama changes from coordinating a capture to debating a drone strike. This is complicated further by the presence of a child playing within the missile’s blast radius. Such is the moral conflict presumably at the heart of the film: Even with perfect knowledge, is it worth killing one innocent person to save likely dozens of others?

It’s the military equivalent of the “trolley problem” frequently posed by philosophers: Given a trolley on a path to kill five people, the question asks, would you instead pull a lever that sends the trolley onto a different path, where it would kill a single person? It’s a question that the makers of driverless cars are wrestling with, and it’s likely one that military commanders struggle with regularly, especially in the targeted killing campaign. In real life, there is never perfect knowledge, so the characters in Eye In The Sky get to handle the debate with more information than any military has ever had in history.

Whether or not this question makes for a compelling film, or if the titular Eye goes from a camera to a killer remains to be seen. The film is set to premiere March 11th, 2016, so audiences can find out for themselves then. In the meantime, why not watch The Fog Of War: Eleven Lessons from the Life of Robert S. McNamara on Netflix, which is a masterwork in exploring the hubris of someone commanding a war, and the deep misgivings of decades spent wondering if they judged the situation wrong.

Watch the full trailer below:

ESA Astronaut Will Run The London Marathon From Space

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Tim Peake at the European Astronaut Center in Germany

ESA

In April, while runners wait eagerly at the starting line for the London Marathon, another competitor will be waiting as well but far far away, on the International Space Station. That extraterrestrial competitor is Tim Peake, an astronaut with the European Space Agency (ESA). He ran the London Marathon (from Earth, obviously) in 1999, but will be running this year in space. And while it might seem like running in microgravity is cheating, it will still take a lot of work.

Peake will run the full 26.2 miles on a treadmill, which, despite the location of that treadmill, sounds pretty darn boring. Luckily, he'll be equipped with an iPad that will make him feel like he's running through the streets of London. Though, it might be a little tricky to really feel like you're there when you've been strapped down to keep you from floating away. The elastic straps and waist belt provide downward force, which allows astronauts to run and keep their muscles working while in space. Peake told the ESA that "after about 40 minutes, that gets very uncomfortable."

Though he ran the 1999 marathon in a respectable three hours and 18 minutes, he doesn't plan to make this race about breaking that time. "I've set myself a goal of anywhere between 3:30 to 4 hours," Peake says in an ESA post.

Peake is currently in Kazakhstan, awaiting his December 15 shuttle to the space station.


Dancing Exoplanets, A Fire Tornado, And Other Amazing Images Of The Week

The Secret To Swimming Like A Jellyfish? Pull, Don't Push

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Jellyfish make swimming look so easy. The stinging, ephemeral beauties glide through the water in an utterly mesmerizing way.

In a study published last month in Nature Communications researchers found that the secret behind the easy swimming of jellyfish is suction. Instead of using its muscles to push water out of the way, a jellyfish moves its body to create an area of low pressure in the water around it. The difference in pressure creates suction, pulling the jellyfish through the water.

The characteristic is also shared by other organisms like lampreys. In this new study, researchers put jellyfish and lampreys in water seeded with minuscule glass beads (less than 10 microns across), which allowed the researchers to track areas of high and low pressure within the water tank. In the video below, you can see the movement of the lamprey creating an area of low pressure (in blue) around the animal.

Previously, many researchers assumed that jellyfish and lampreys moved through the water like most other animals, by pushing against the water with their bodies. In the paper, the authors write that "the implications of this new perspective on animal swimming potentially reach topics as diverse as evolutionary adaptation, functional ecology and bio-inspired design."

Because jellyfish and lampreys use so much less energy to move through the water, the thought is that by mimicking their suction technique, we might be able to create highly efficient underwater robots and vehicles that can move smoothly through the water.

We Rode In The Car Astronauts Could Drive On Mars

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The Space Exploration Vehicle conquers a hill at the Johnson Space Center in Houston

Sarah Fecht/Popular Science

In The Martian, fictional astronaut Mark Watney rides around Mars in a badass, futuristic-looking rover. Well, like most things in the book/movie, turns out that vehicle isn't so far from reality. NASA hopes to send humans to Mars in the 2030s or 40s, and in preparation, they're developing the Space Exploration Vehicle—a rover that looks strikingly familiar to anyone who's seen the movie. At the Johnson Space Center in Houston, Popular Science got to ride in it.

Full disclosure: This trip was paid for by Twentieth Century Fox, the makers of The Martian movie.

NASA's Space Exploration Vehicle is a just a prototype for now, but future solar-powered versions might one day fly to Mars, arriving on one of several pre-supply missions that will deliver food heavy equipment ahead of the astronauts' arrival.

The rover has twelve wheels, arranged in six sets of two, and each pair rotates 360 degrees. That means it can turn on a dime and drive sideways as well as forward and backward.

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Cameras on each side of the vehicle help the driver navigate in all directions.

Control panels inside the rover

Sarah Fecht/Popular Science

The fact that the wheels have a turning radius of zero helps the rover traverse the sort of rocky landscapes it will encounter on Mars.

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It's a bumpy ride, but the rover doesn't get stuck.

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Inside, the rover comfortably seats a driver, co-pilot, and four people on benches in the back. Going over slopes can feel a little treacherous, but the driver, Lucien Junkin, assures us that the rover can master hills as steep as 55 degrees.

Junkin says the vehicle can move at up to 10 miles per hour, and NASA says it'll hold up even after a few thousand miles of driving.

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In The Martian, Watney accidentally flips his rover upside down, so I ask Junkin how the Space Exploration Vehicle manages to stay upright. Although the cabin looks large compared to the wheels, “it's really very, very light relative to the rest of the vehicle,” he says. Below the cabin, hundreds of pounds of batteries help to stabilize it, and so does the wide footprint provided by the wheel positioning.

Still, the ride is nerve-wracking, with everyone struggling to stay in their seats as the rover throws us around. The engine whirs, and the body of the rover creaks from the stress of the inclines and bumps.

Up near the pilot's seat, a bubble sticks out to allow future astronauts to look below the vehicle, to inspect the local geology without having to don a space suit.

Bubble on the front end of the rover lets the driver look under the vehicle to inspect rocks

Sarah Fecht/Popular Science

And speaking of space suits, you might have noticed the empty one that dangles off the back of the rover like a Halloween decoration.

The SEV carries a space suit on its back-end

Sarah Fecht/Popular Science

That suit is actually connected to the rover via an airlock, so astronauts can easily suit up to go outside.

Space suit port

Astronauts who need to leave the vehicle can use this handy port to slip into a suit. An airlock closes behind the suit so that air and heat aren't lost from the vehicle.

Sarah Fecht/Popular Science

The next version of the rover will drive slightly faster, at about 12 miles an hour. That one will also be pressurized, with working airlocks to better simulate the airtight vessel that'll be needed on Mars.

Let's hope it also comes with seat belts.

Orbital ATK Will Attempt To Launch Supplies To Space Station Again Tonight

Professional Drivers Race Around A Volcano In Virtual Reality

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Still From "Castrol EDGE Titanium Strong Virtual Racers"

Still From "Castrol EDGE Titanium Strong Virtual Racers"

Screenshot by author, from YouTube

Racing cars through a smoky volcanic hellscape is probably the coolest way to show off a brand of premium motor oil, but the world is bizarrely lacking in race tracks built at the tops of volcanoes. Castrol Edge, a motor oil brand, instead decided to test this out by taking two professional racecar drivers, putting them each behind the wheel of a car, and then putting virtual reality helmets on their heads while they drove around a real-life track.

Stunt driver Ben Collins and pro racer Matt Powers drove their cars on two separate racetracks in California. The layouts of the racetracks were identical--oblong shapes of flat, bland asphalt. But in their VR headsets, the landscape was transformed into a largely gray-scale world of crashing boulders, rubble, and steaming vents, and the drivers raced simultaneously. It’s the most intense game of Mario Kart ever.

Watch the full video, full of thrilling cuts to transparent images of motor oil, below:

'Medieval Warm Period' May Not Have Been So Warm After All

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Southern Greenland's Hvalsey Church, A Viking Ruin

Wikimedia Commons

Historians and scientists have long asserted that the Viking explorers who left Iceland in the 10th century and came to rest in Greenland were only able to do so because of a stretch of abnormally warm temperatures that has come to be known as the Medieval Warm Period (MWP). But a new study of climatic conditions in Greenland during that time calls this warm period into question.

The current thought is that the mild climes of the MWP led the Vikings out to Greenland, and that the harsh cold climes of the “Little Ice Age” (LIA) drove them back to Iceland. Further, the MWP has also been a long time favorite tool of climate change deniers who use it to poke holes in legitimate climate science--as proof that there had been global periods of warmth before. According to the study, though, the Medieval Warm Period might not have been that warm at all—making the Vikings incredibly tough folks.

The so-called Medieval Warm Period started around 950 and lasted until 1350. During this time, Europe and much of the North Atlantic enjoyed exceptionally balmy weather. It was in the midst of this warm stretch that the Vikings, or Norse, who had by this time made it out to Iceland, set sail in their longships to settle on the coasts of Greenland and parts of Canada (ca. 985).

Almost 5,000 Norse settlers ended up living out their lives in this region hunting walrus for trade in ivory, and raising livestock. Already living there were the Inuits, the indigenous peoples of the arctic, whom they perhaps traded with. About 400 years later, the Norse disappeared from North America for reasons that remain unknown. Their disappearance is traced to roughly 1450, around the beginning of the “Little Ice Age,” so historians and scientists understandably surmised that the Norse were able to settle in Greenland because of the favorable temperatures of the MWP but then were forced out when temperatures dropped.

The problem with this view of the MWP is in how it has been applied to Norse history as well as to the global climate history of Earth. Nicolás Young, paleoclimatologist at Columbia University’s Lamont-Doherty Earth Observatory and lead author of the study, puts it quite bluntly: “The concept is Eurocentric—that’s where the best-known observations were made. Elsewhere, the climate might not have been the same.” And their research has shown that it most likely was not.

Western Greenland

Small outlet glaciers in Western Greenland are retreating backwards from where they were when the Vikings arrived in the 10th century. Here meltwater has formed a lake.

Jason Briner

Although most traces of where the glaciers resided during the Norse settlements have long been erased, Young and his team found moraines—boulders and other rocky debris piled up where the end of a glacier used to sit—in Western Greenland and on Baffin Island in Canada, both areas of Norse habitation. When the researchers took samples from the boulders, they found that the glaciers had reached positions seen in the Little Ice Age between 975 and 1275—long before the Little Ice Age had started. "The glaciers were large and quite healthy" notes Young, during the height of the apparently ‘warm’ Medieval period.

Boulder sampling, Baffin Island, Canada

Jason Briner, a co-author of the study, samples a boulder left by a retreating glacier in Baffin Island, Canada.

Nicolás Young

The big takeaway is that at least this portion of North America was significantly colder than Europe was during the MWP and not really in a warm period of any kind at all. In fact, it was already cold when the Vikings arrived. “It’s becoming clearer that the Medieval Warm Period was patchy, not global,” remarked Young in a press release.

Some speculate this was due to a prolonged cycle of the North Atlantic Oscillation, a decadal climate cycle that seesaws temperatures back and forth on either side of the ocean. "It has two phases. A positive phase, and a negative phase. When it's in its positive phase, Europe and the Eastern North Atlantic get warmer, and the Western North Atlantic gets colder," explains Young.

As for the Vikings, if cold weather wasn’t what drove them away from Greenland, then it’s possible a couple of different factors played a role: decline in walrus ivory, conflict with Inuits, soil erosion due to overgrazing by their livestock, or even migration back to Europe to farms depopulated by the Black Plague then raging in Europe.

Now not only have Young and his team added to the already mounting evidence that the warm-weather-happy-traveler theory about the Vikings is incorrect, they’ve—perhaps more importantly—also dealt a killing blow to the misrepresentation of the Medieval Warm Period as a global climatic event. Their study arrives atop heaps of other research that not only confirms this, but also suggests that as Europe warmed during this period, many other parts of the globe, including central Eurasia and Northwestern North America, actually cooled. The release of this paper is also particularly timely as global leaders and politicians try and chisel out a plan to tackle climate change.

Watch Technicians Take Apart And Rebuild A U-2 Spy Plane

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U-2, Deconstructed

U-2, Deconstructed

Screenshot by author, from YouTube

No spy plane in history is as long-serving as the venerable U-2. First flown in 1955, the plane was a major part of the Cuban Missile Crisis, and continues to serve to this day. While U-2 makers Lockheed Martin contemplate turning it into a drone and building a sucessor, the plane is still scheduled to stay in American service until at least 2019. Keeping an old plane flying requires a lot of maintenance, and in the U-2’s case, that means taking it apart and rebuilding it after every 4,700 hours of flight time.

Captured by Sploid, this video shows a timelapse of the process, from disassembly to reconstruction, that happens every repair cycle. Most striking is the paint removal, which clocks in at about 1:13.

Watch the full process below:


Robots Could Learn The Same Way Babies Do

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Meccano Meccanoid G15 KS: A DIY Robot You Can Talk To

Meccano Meccanoid G15 KS: A DIY Robot You Can Talk To

Robots are pretty cute. Just like babies.

Jonathon Kambouris

Babies learn by touching things, testing them out, playing around, and watching what adults do. But robots learn only when developers write some lines of code, or when someone manually models a desired movement on the robot. So computer scientists at the University of Washington paired up with the university's developmental psychologists to make teaching baby bots a little more like teaching baby humans. The team published their approach in PLOS One this past month.

The team of researchers built computer algorithms based on infant research studies and then put them to the test with robots. There are two prongs to testing this idea: a gaze-based experiment done with a computer simulation, and an experiment that has an actual robot imitate a human.

In the gaze scenario, a simulated robot is taught the mechanics of how its head moves, and watches a human move its head. The robot then uses its new knowledge to move its head too, so it's looking in the same direction as the human. In another test, the robot is taught about blindfolds, and how they make it impossible to see. With that newfound knowledge, the robot decides to not look in the direction where a blindfolded human is "gazing." In the imitation experiment, the robot would watch a human pick something up from a table, and understanding what the goal was, would either mimic the human exactly, or find an easier way to pick up the object. These two different experiments are basic, but the team plans to find a way to teach robots about more complicated tasks as well.

“Babies learn through their own play and by watching others,” says Andrew Meltzoff, psychology professor and collaborator on this research, in the press release. “They are the best learners on the planet—why not design robots that learn as effortlessly as a child?” Well, the dystopian pessimists out there might have a few reasons, but until then, baby robots sounds pretty darn cute.

The Nutcracker, Obsolete

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I normally stay far away from holiday tie-in comics. You will never see a "Science of Love" post on Valentine's Day or "Why Turkey Turns You Into a Lizard Person" for Thanksgiving. But last week I was at Target and couldn't help but notice that the nutcrackers they sold wouldn't be of any use as an actual nut cracker. Comparisons were made, dog breeds were thrown under the bus (metaphorically, you monster) and now we have today's comic. Sadly, this won't be the last seasonal comic this winter. But I think you'll enjoy what I'm cooking up next.


Hey, Boxplot fans, recently I set up a Patreon as a way for readers to support my comic work. If you're an avid reader and want a backstage look at how all this stuff comes together, You can subscribe for as little as $2 a month. At higher levels you even get new books like OTP as they're released. Check it out!

Maki on Patreon >>

The Desktop Gene Machine

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Courtesy of Biorealize

The momentum of developments in bioengineering has left life scientists breathless. CRISPR, the gene editing tech that has been adopted almost universally among biotech labs, has been stealing all the headlines with talk of designer babies. But behind the glitz, a steady stream of software, services, and machines have been coming out that make genetic engineering easier, more reliable, and more automated. The latest innovation comes out of a collaboration between a biologist, a designer, and an engineer at University of Pennsylvania. They created a desktop machine that automates genetic engineering—no hands required.

“You can hit play and just get your product out at the end,” says Karen Hogan, co-inventor of the Biorealize Microbial Design Studio and biology lab coordinator at UPenn.

Courtesy of Biorealize

The machine looks like a DJ turntable. But instead of records, it spins a wheel of syringes containing genetically engineered microbes. The machine works like an assembly line. First, it zaps the microbes with more than 200 volts of electricity to make them more amenable to genetic engineering before injecting in new DNA. The microbes are then incubated in the syringes. As a final step, the proteins the microbes produce can be extracted from the slurry.

The last step, the protein extraction, begins to fulfill the biotech dream of the chemical brewing "bread machine." For the past decade, synthetic biology pioneer Drew Endy has described a machine containing modified microbes that could dispense any chemical—from dishwashing detergent to tylenol. Microbial Design Studio takes a step toward realizing that vision where users can insert cartridges containing microbes into the machine and later collect useful chemicals at the other end.

“It's easy to imagine a future where we have a distinct desktop DNA printer that's programmed with light and you can make any piece of DNA you want on your kitchen counter or your bench. Maybe you're doing biosynthesis of morphine in the yeast in your bread machine.”-Drew Endy, Arc Fusion

Before the Studio ever enters homes, the team expects labs to adopt it. The Studio is small enough to sit on a desktop and can run eight experiments at once with varying chemical recipes and DNA designs. Scientists can even stack machines like bricks to automate massive numbers of experiments simultaneously, says co-inventor Orkan Telhan, a design professor at UPenn.

“The automation saves a lot of time so you can focus on your design instead of moving liquids from one place to another,” he says. Telhan imagines entire rooms of these machines chugging away like computer servers to power through high-volume or long-term experiments.

The Studio belongs to a rapidly developing landscape of tools that opens bioengineering to new disciplines and could pave the way for a host of new biotech applications.

The Biorealize team expects to begin selling machines in the next two years at a range of prices. Schools and hobbyists could buy a basic version for just a few thousand dollars, while scientists could buy a fully tweaked version at premium. “Think of it as a personal computer for biology,” says Telhan.

Video: Teen Mounts A Flamethrower On A Drone

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Drone With A Flamethrower

Drone With A Flamethrower

Screenshot by author, from YouTube

Flamethrowers are a weapon so cruel that nations have joined together to prohibit their use. Laws like the third Convention on Certain Conventional Weapons prohibits the use of many incendiary devices by the military against civilians, acknowledging them as a weapon too horrific even for war. Nothing in international law prevents a civilian from strapping a flamethrower to a drone, however, even if it’s an absolutely terrible idea. So of course someone did it.

Austin Haughwout, a teenager from Connecticut who caught news headlines (and police attention) this summer by strapping a handgun to a drone, yesterday released a new video showing a drone with a flamethrower roasting a turkey instead. The drone parts come from remote control online retailer Hobby King, which also sponsored the video and whose giant logo appears prominently in the video.

Over the course of the four-minute video, the drone mostly hovers in place while launching jets of flame onto a dead and spitted turkey. In the United States, some local laws prohibit flamethrowers. California requires special licensing, and Maryland has an outright ban. After a crowdfunded flamethrower made the rounds online, Detroit banned the production, storage, and use of flamethrowers. It’s likely also that local laws, not federal ones, would regulate the use of flamethrowers attached to unmanned vehicles, though if the roasting took place on private property and without complaint, it could be entirely legal.

Watch the drone flamethrower below:

[The Verge]

Watch The USS Zumwalt's First Tests At Sea

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Zumwalt At Sea

Zumwalt At Sea

U.S. Navy photo courtesy of General Dynamics Bath Iron Works/Released

The USS Zumwalt is boldly bringing the United States Navy into the future. Built to carry railguns and laser weapons that don’t quite exist yet, the sleek destroyer has a weird stealthy body more in line with something Darth Vader would command than the last century of warships. This week, the Navy took it out to sea for the first time, and today they released a video.

On the calm, clear surface of the Atlantic Ocean on December 7th, the Zumwalt looked like a giant knife slicing through the water. Or maybe like a submarine that forgot it was supposed to travel under water. The angular profile is built for stealth, and it means that the small crew will spend most of their time inside the modern and high-tech confines of the smooth gray sea-pyramid. In the back of the vessel, there’s a landing pad that can accommodate two helicopters or multiple small drones.

The third Zumwalt-class destroyer might come with a railgun on board, but for now the current vessel sports two 155mm guns for use against large ships, housed in smooth couplings to minimize radar signature. There are also a couple of 30mm guns, which are smaller (and slower firing) than the guns originally planned for the ship, so it can defend itself against smaller attack craft. These are all secondary to the ship’s main weapon, which includes 20 missile system bays that can hold at least four missiles each.

For now, the Navy is just showcasing the basic workings of the voyaging ship. Smooth seas, so far. Watch it below:

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