This Incredible Star Wars-Style Bionic Hand Let an Amputee Feel Again

We geeks all have the same platonic prosthesis ideal: Luke Skywalker's badass Star Wars mech-hand. We're getting there, bit by bit. Dennis Aabo Sørensen's new hand is almost there; it let him feel again.

The hand is the subject of an in-depth paper published in the journal Science Translational Medicine today, and has been tested on Sørensen and Sørensen alone. The mecha-gripper works by tapping right into Sørensen's nerves via electrodes in his arm that are stimulated by sensitive pressor sensors on the hand's fingertips. The result? Touch. Touch that Sørensen says feels an awful lot like what he can get out of his good hand.

Silvestro Micera, a neural engineer at the Scuola Superiore Sant'Anna in Italy and the Swiss Federal Institute of Technology Lausanne in Switzerland, lead the team of researchers responsible for the touchy-feely mitt and considers it "certainly a major step in the right direction."

The catch? Since the study focused on a single person, it's hard to really draw any conclusions about how mechanical hands like these could work on a larger scale. Not to mention there's the issue of using it for long periods of time; Sørensen only used this one off and on.

There's still a lot of work to be done, so you probably won't want to go losing any hands any time soon. Or ever. But for folks who already have, it looks like touchy-feely solutions are just around the corner. More here.

What if famous brands used famous cartoon characters as their logos?

Brilliant. Artist Bruce Yan remixes the logos of famous brands by inserting the cartoon characters we grew up with. So the Playboy bunny becomes a profile view of Bugs Bunny, the mermaid in the Starbucks Logo becomes Ariel, Charlie Brown is the BIC guy and so on. The twists are super clever and fun.

You can actually see more of these logo remixes at Gallery1988 where Yan sells them as prints (sadly, a lot of them seem to be sold out). It'd be great if the brands actually struck deals with the cartoons and did a whole series like this in real life. More here.

How To Turn Dry Pasta Into a Rocket Engine

You may not realize it, but your kitchen is one of the most well-stocked chemistry sets you could ever hope for. And it's not only for creating edible chemical reactions. NASA might rely on giant laboratories and factories to build its rocket engines, but all you need is a piece of pasta, a jar, some hydrogen peroxide, and a little yeast. Oh, and fire.

As long as you're not expecting to a put a human into orbit, this simple experiment will produce a surprisingly satisfying rocket engine on a very small scale. Mixing the hydrogen peroxide and yeast produces a steady flow of oxygen, and the pasta works well as makeshift rocket fuel. And while your creation won't produce much thrust, it still produces a decent flame, so be careful with this one, ok?

Can't Choose Between Biking or Roller Blading? Now You Don't Have To

The Segway opened the floodgates for countless personal mobility devices, with designs that range from conservative to downright crazy. And the Aeyo—a cross between a scooter, a bicycle, and a pair of inline skates—falls somewhere in the middle of that scale.

The Aeyo is ridden in a standing position like a scooter, but instead of kicking off the ground or pedaling for propulsion, your feet are strapped into a pair of what look like inline skates, which are attached to the rest of the contraption with a pair of articulated legs. So a simple skating motion gets the Aeyo rolling, while steering and braking come courtesy of its handlebars. More here.

The Perfect Way to Hold a Hamburger, Proven by Science

We've all been there: You're holding a big ol' hamburger with both hands, you bring it to your mouth to take a bite, and the whole burger falls out all over the place. But guess what, there's an "ideal" way to hold a burger. This is it.


A while back, Japanese television show Honma Dekka!? had three researchers—experts in fluid mechanics, engineering, and dentistry—try to figure out the best way to hold and eat a large hamburger. Apparently, they spent four months researching this. For science.

The researchers did a 3D scan of a hamburger, trying to figure out how the particles interacted while holding a large hamburger. Using the data, they showed that the typical way to hold a burger—thumbs on the bottom and fingers on top—results in pushing the contents of the burger out of the buns.

As you can see, the thumbs and the pinkies are on the bottom. The middle three fingers on each hand are on the top. As you can see the burger is divided visually into equal parts.

If the burger is held uniformly, then its contents shouldn't spill out of the burger's backside.

Note that it's important not to hold the burger too tight. Doing so could cause the buns to be crushed, and the contents to spill out. Also, the dental expert recommended warming up the muscles in your mouth before eating a big hamburger by opening and closing it a few times.

One drawback: If you use the "ideal" way to hold a burger, you probably should eat your fries before or after you finish it. Otherwise, it might be difficult to hold the burger like this and eat fries at the same time. More here.

Scientists Use Acid to Turn Blood Cells into Stem Cells in 30 Seconds

This is a game changer, folks. Whereas mining stem cells has been either an ethical quandary or a months-long affair, scientist can now turn any old blood cells into stem cells in just 30 seconds—by dipping them in acid.

That's right. Take blood cells, add acid, get stem cells. It's as simple as it sounds.

A team of Japanese scientists stumbled upon the method after observing a similar phenomenon in plants, where environmental stress can morph an ordinary cell into an immature one. New plants could then grow from the immature cell. This has also been known to happen in birds and reptiles, so the team from the Riken Center for Developmental Biology set out to see if something similar could happen with mammals.

They started with mice, of course. Sure enough, when they exposed blood cells from mice to acid, a transformation began. While some of the blood cells died, many became stem cells within a couple of days. "It looks a bit too good to be true, but the number of experts who have reviewed and checked this, I'm sure that it is," Chris Mason, professor of regenerative medicine at University College London, told the BBC. "If this works in people as well as it does in mice, it looks faster, cheaper and possibly safer than other cell reprogramming technologies—personalized reprogrammed cell therapies may now be viable." More here.

Cleaning a neglected shower is just about the worst household chore there is. But if you can spare an extra minute after your daily shower, you can eliminate soap scum before it becomes stuck to tiles like super glue by simply wiping down the walls with this handy squeegee, designed to hang on your curtain rod or shower head.

For just $10 you get your choice of a white, blue, or black hanger that's always in reach when you're done cleaning yourself so you can then clean your bathroom. And while it does rob you from an extra minute or two of sleep in the morning, in the long run you're gaining back a Saturday afternoon that would otherwise be sent scrubbing until your arms ached. More here.

Wikipedia's Adding Voice Recordings to Famous People's Biographies

Imagine being able to hear a great historical figure's voice. It would add such richness to the facts and dates about her or his life. Starting today, Wikipedia will make that possible with the Wikipedia Voice Intro Project, adding short voice recordings to the online encyclopedia. And that's truly awesome.

WikiVIP announced the program with a demo recording from British personality Stephen Fry. Apollo 16 astronaut Charlie Duke's page also boasts a voice recording. The project page says it was undertaken "so that we know what notable people sound like; and how they pronounce their own names." A simple, goal, but infinitely profound.

There's something intangibly powerful in the human voice. Curiosity leads us to wonder what great historical figures sounded like—and we get deeply offended if modern portrayals don't fit the sound we imagined. Just ask Daniel Day-Lewis.

If you're the type of person who has a Wikipedia biography, go here to see how you can get your voice saved forever. Just don't sneeze or snort or anything weird—people will be listening to that recording eons from now.

Facebook Could Die Out Like an Infectious Disease By 2017

If you view Facebook as a plague on social dynamics, you might not be far wrong.Researchers from Princeton University claim that the social network's popularity has spread like an infectious disease—but, as we slowly become immune to its charms, it will die out.

By comparing the uptake of Facebook to growth curves of epidemics, the scientists claim that—just like the bubonic plague—Facebook will gradually begin to fade away. They go further than that, too, claiming that Facebook will lose 80 percent of its peak user base within the next three years. The researchers write in a paper currently published on the arXiv servers:

"Ideas, like diseases, have been shown to spread infectiously between people before eventually dying out, and have been successfully described with epidemiological models... Ideas are spread through communicative contact between different people who share ideas with each other. Idea manifesters ultimately lose interest with the idea and no longer manifest the idea, which can be thought of as the gain of 'immunity' to the idea."

John Cannarella and Joshua Spechler, both from Princeton, modelled social networks using equations commonly used to map the spread and recovery of epidemics. They then tested them on data gathered from MySpace to check they accurately modelled boom and crash, and then applied them to Facebook. In turn, they generated the prediction that the site's user count will drop by 80 percent before 2017.

Of course, it's not clear that equations used to model epidemics will accurately predict Facebook's decline—there are so many factors in the possible success or failure of the site that such equation are always bound to simplify the problem. But with Facebook's chief financial officer David Ebersman admitting recently that the site "did see a decrease in daily users, specifically among younger teens" in the last three months, you never know. More here.

These Blossoming Flowers Are the First Inflatable 3D-Printed Object

Most objects created by 3D printers are made from hard rigid plastics, but as the hardware is continually being improved, new materials are coming into play. Believe it or not, at Victoria University of Wellington's School of Design, Richard Clarkson has succeeded in 3D printing these flowers from a soft rubber-like material that can actually be inflated.

As air is pumped into inner chambers, these rubber flowers appear to blossom and open up, revealing a colorful inner core. And while this doesn't mean you'll be printing custom-shaped birthday party balloons anytime soon, it's another innovation that brings 3D printers closer and closer to the replicators that deep down we all actually want. More here.

Scientists Discover Water in Stardust and It Suggests We're Not Alone

Stardust sounds magical enough as it is, but now scientists have for the first time observed that it contains water—which, in turn, could suggest that life is universal.

The water forms within dust grains when they're bombarded with charged winds from the sun. The chemical reaction set up by the winds was hypothesized by scientists in the past, but this is the first time anyone's actually found H2O trapped inside real stardust.

The finding saw John Bradley, from the Lawrence Livermore National Laboratory in California, take a very close look indeed at the outer layers of interplanetary dust particles that were found in the Earth's stratosphere. Incredibly high-resolution microscopy revealed tiny pockets of water in the already-tiny specks of dust—each of which themselves measured less than 25-micrometres, half the width of a human hair. New Scientist explains how the water forms:

The dust is mostly made of silicates, which contains oxygen. As it travels through space, it encounters the solar wind. This stream of charged particles including high-energy hydrogen ions is ejected from the sun's atmosphere. When the two collide, hydrogen and oxygen combine to make water.

Roll the new finding together with the fact that there are plenty of organic compounds in interplanetary dust, and the suggestion is, as New Scientist points out, that stardust contains all the basic ingredients needed for life like that on our planet. Because it's believed that similar stardust grains exists in solar systems throughout the universe, the finding bodes well for the existence of life elsewhere. In other words, we're almost certainly not alone. More here.

New Climate Study Warns of More Frequent El Ninos in the 21st Century

A study published today in the journal Nature Climate Change warns that climate change will cause a dramatic increase in El Nino weather events during the 21st century. Formerly happening once every 20 years or so, we can now expect an El Nino once every 10 years.

An El Nino occurs naturally when the temperature of the Pacific Ocean rises, altering rainfall patterns and causing everything from extreme floods to severe droughts around the world. AsThe Guardian points out, the last severe El Nino (1997-98) caused between $35-45 billion in damage and killed about 23,000 people.

The really scary part is that scientists used to believe that these naturally occurring El Nino events wouldn't be affected (which is to say, made more frequent or more severe) by climate change. This new study suggests that we may not be so lucky.

"This is a highly unexpected consequence of global warming," Professor Mat Collins of the University of Exeter said in a statement. "Previously we had thought that El Nino would be unaffected by climate change. Tropical rainfall conditions such as those experienced in extreme El Ninos have a dramatic influence on the world […] the impact therefore on mankind is substantial."

Climate experts say that more research is needed on the subject, but that things don't look good. You rarely want to hear the word "irreversible" bandied about when you're talking about the future of our planet.

"This is essentially an 'irreversible' climate change phenomenon, and it would take a dramatic reduction in greenhouse emissions over a number of generations to reduce the impact," Collins said in a statement. "It is even more evidence that cutting emissions would be a good idea." More here.

Christophe Claret's Latest Watch Lets You Kill Time By Playing Poker

Christophe Claret's first foray into the seedy world of wristworn gambling was the Blackjack 21 that let deep-pocketed watch aficionados pretend to squander away even more of their fortunes. That was followed by a Baccarat model, and now the company is introducing an even more complicated model that lets up to three players enjoy a quick game of Texas Hold'em Poker.

Christophe Claret actually intended to release this particular model first back in 2011, but the mechanisms required to orchestrate the 52 cards needed for a legit game of Poker required an additional two years of development and refinement. So in addition to cramming an actual working watch inside this piece's 45-millimeter wide case, there's a mechanical card dealer in there too with various components ensuring the results are always random.

To ensure that the three players huddled around the tiny watch can't see each other's cards, Christophe Claret has employed a series of strategically angled shutters keeping other hands out of view. The game plays out through a series of button pushes, and is accented with a series of gongs that are triggered during specific parts of a round. And with an impressive 72 hours of power reserve, you can keep gambling for days without having to worry about giving the Poker a wind.

Only 80 pieces will be produced, 20 in each of four different finishes and colors, and you can probably safely expect it to come with a price tag similar to its predecessor—somewhere in the $200,000 neighborhood. Imagine the weekend you'd have in Vegas for that much money. More here.

You Can Now Buy a Life-Size, 3D-Printed Replica of Your Unborn Fetus

"Imagine holding your baby before he or she is born." It might sound like a morbid thought (if not a shitty horror flick catchphrase), but the idea behind the line is actually pretty sentimental. Of course, that's assuming you'd call 3D printing a life-size replica of your unborn fetus sentimental.

For $600, though, you can hold a keepsake from that very special time in baby's life in your very own hands. Thanks to 4-D ultrasound technology, a company called 3D Babies is offering to turn those flat photos into a custom, three-dimensional, life-size plastic replica of soon-to-be-born fetus

The company originally started as an Indigogo campaign, but they've raised the money for their Stratasys U-Print SE Plus and are ready to pop out fetusdolls as fast as you can make their human counterparts. But even if you're not quite ready for a fetus of your very own, you can always borrow a fetus from someone else. More specifically, you can borrow a fetus from Kimye. Yes, their entire collection of 3D-printed celebrity babies starts and ends at Baby North West. More here.

New Olympic Zipper Technology Makes Seams Nearly Invisible

You won't find it in stores just yet, but if you look closely at the jackets and other gear worn by US, Canadian, and Russian athletes at the upcoming 2014 Olympics, you might catch a glimpse of Columbia Sportswear's new waterproof zipper technology. Or you might not, since it's been engineered to be almost invisible when zipped shut.

Columbia was contracted to design and produce the outfits for those three nations, and according to the folks at GearJunkie, the company took the opportunity to introduce its new waterproof LightRail Zipper technology which it's been developing and perfecting for the past few years. The new zippers are lighter, slimmer, more flexible, and easier to zip than traditional waterproof zippers. And when sealed shut the seams almost completely disappear into garment.

The Lightrail Zippers are bonded to jackets and other garments using laser-cut fabric that works in a similar fashion to adhesive seam tape. But even without the bulk of stitches, there's no chance the seams will ever come undone. Even the zipper itself has been improved, with the addition of a subtle dock that completes the water and windproof seal.

There's no word on when the new zipper tech will be introduced on consumer-ready Columbia jackets and garments, but assuming the uniforms perform admirably at the Olympics, it's safe to assume that we'll probably see it officially rolled out closer to the end of the year. More here.

There's a Surprising Amount Of Power Inside This Super-Thin Battery

Last year Vorson managed to squeeze a 2,500 mAh battery into its Bookmark power packthat measured in at just 4.7 millimeters at its thinnest point. Impressive! But it's a wimp next to EnerPlex's new Jumpr Slate, which packs a heft new 10,000 mAh battery into a binder-friendly, blade-thin package.

At 6.7 millimeters the Jumpr Slate is technically a little thicker than the Bookmark, but that's across the Slate's entire surface. The Bookmark actually gets pretty thick on one edge near its USB ports. And the Slate's battery capacity is massive in comparison.

Of course you can't magically squeeze a 10,000 mAh battery into a smaller package, but by spreading it out into a large, thin enclosure, EnerPlex has created a backup that's easy to slip into a documents pocket in your bag. So as far as form factor goes, this is a nice alternative to a massive brick.

It's also nice that EnerPlex has included two regular sized USB ports in addition to a microUSB port for charging smaller electronics. And the price isn't bad either. The 10,000 mAh version is just $100, while a smaller 5,500 mAh version is even cheaper at $60—but do yourself a version and spring for the heftier model. More here.

Blasting the Brain with Ultrasound Enhances Sensory Abilities

In an experiment straight out of a comic book, Virginia Tech scientists have found a way to improve sensory abilities. All it takes is a detailed map of the brain, an ultrasound gun, and a willing patient. What could go wrong?

The experiment was simple enough. The Virginia Tech team directed ultrasound waves at a particular part of the cerebral cortex and then tested subjects' sensory abilities with two tests: one that asked them to distinguish between two different pin pricks and another to determine the difference between puffs of air. Much to their surprise, the ultrasound improved the subjects' performance at both tests. When the ultrasound waves targeted the brain at a slightly different location, the improvement disappeared.

Professor William "Jamie" Tyler, who led the study, explains:

It seems paradoxical, but we suspect that the particular ultrasound waveform we used in the study alters the balance of synaptic inhibition and excitation between neighboring neurons within the cerebral cortex. We believe focused ultrasound changed the balance of ongoing excitation and inhibition processing sensory stimuli in the brain region targeted and that this shift prevented the spatial spread of excitation in response to stimuli resulting in a functional improvement in perception.

The only other studies that have produced similar results required the use of electric shocks administered directly toward the brain, which is less than ideal. That makes ultrasound wave treatment seem like a day at the spa—which is not a bad idea come to think of it. Now we just need to perfect ultrasound-based telepathy and we'll really be on the way to being superheroes. More here.

These Easy-To-Install Treads Turn Any Car Into a Tank

If you're an off-roading enthusiast you've probably already seen those kits that let you replace your truck's wheels with a set of four tank treads for tackling any terrain. The Track N Go is the same idea, except that you don't need a garage, a lift, or any kind of mechanical know-how to install them. You just drive your vehicle onto the treads, lock them in place, and away you go.

Using a treadmill-like approach, the Track N Go treads are even powered by your vehicle's tires, so you don't need to make any Frankensteinish modifications to your ride to use them. Once you drive up onto them and remove the loading ramps, you can point your vehicle in whatever direction you want to go, and drive.

Together, the four treads have a much larger footprint than your vehicle's tires, which means you're less likely to sink in mud and snow—and it's impossible to get a flat tire when rolling on tank treads. The Track N Go's $25,000 price tag is a bit of an issue if you're only planning to use them on the occasional weekend adventure. But, when you realize you're no longer reliant on congested traffic-filled roads, how could you not justify a set? More here.

This Super-Tiny Windmill Could Someday Charge Your Phone

Researchers at the University of Texas at Arlington have come up with a way to build a nickel alloy windmill so small, 10 of them could be mounted on a grain of rice. And if all goes as planned, hundreds of the little things could end up in a case that charges up your smartphone.

UT Arlington's Smitha Rao and J.-C. Chiao designed the windmill, which at its broadest is just 1.8mm wide. Built from nickel alloy for rigidity, the little fan is self-assembled using wafer-scale semiconductor electroplating principles and a technique the team likens to origami. Rao and Chiao have partnered with WinMEMS Technologies Co., a Taiwanese company researching ways to build micro electro-mechanical systems, to bring the baby windmill to reality. More here.

The Sun Is Your Zippo With This Solar-Powered Lighter

Perfect for smokers who live in windy cities, this compact parabolic reflector lets you harness the sun as your own personal lighter—one that's immune to even the strongest winds.

A spring mounted holder ensures your cigarette is always at the focal point of the sun's reflected rays, and the $8 mirror is made of plastic so it won't immediately shatter if dropped. It's also the perfect camping accessory if you've never had much luck rubbing two sticks together to start a fire. More here.

France Will Pay You $5 Million to Invent an Oil-Drilling Drone

France's equivalent of DARPA has a lofty task for you. The National Research Agency is challenging engineers to design and build an autonomous oil-drilling robot that can operate continuously for six weeks at a time. And they're willing to pay you handsomely.

Well, to be exact, the French oil company Total is offering a €3.5 million (nearly $5 million) budget and a €500,000 (about $680,000) prize for the winning team. The National Research Agency's website describes the so-called ARGOS challenge:

The goal of the ARGOS Challenge is to foster the development of advanced robotic capabilities in oil & gas environments. The programme is based on robot systems which can safely operate in complete or supervised autonomy over the entire onshore or offshore production site, potentially in hazardous explosive atmospheres. The overall objective is to enhance the safety of operators in isolated production sites.

It's actually a pretty brilliant idea. As we've seen time and time again, drilling for oil is a dangerous job—however necessary for keeping our gas guzzling machines running. But just as unmanned aerial vehicles make a fighter pilot's job safer—and just as autonomous trucks are already operating at some mines—these drilling drones will inevitably save some lives. Until they develop minds of their own and turn this beautiful planet into Swiss cheese, that is. More here.

This Is the World's Fastest Memory Card

Behold, the world's fastest memory card. Lexar's 3333x CFast 2.0 ratchets up the read speed of Compact Flash cards to a dizzying 500MB/s—and that is very, very fast.

Of course, you probably won't be able to take advantage of all that speed just yet, unless you have some insane pro-level kit, but that might change as the next wave of high-spec DSLRs dribble out into the market. When they do, these little guys should be able to cope with whatever ludicrous capture rates you can thrown at them.

When they go on sale, they'll be available in in 32GB, 64GB, 128GB and 256GB sizes. It's worth noting that you could theoretically fill up the smallest one in around a minute if you were so inclined. A minute.

You can probably expect an ever faster card to come along soon—these records don't stand for long—but until then, you'll have to save up for the Lexar. More here.

Science Makes a Circuit So Thin, It Can Sit On a Contact Lens

Flexible, stretchable, bendable circuits will make futuristic wearable devices and implantable medical sensors possible. Today, a Swiss research team revealed a big new step in that field: a super-thin circuit that can function while wrapped around a human hair or laid on a contact lens.

The team, led by Giovanni Salvatore at the Swiss Federal Institute of Technology, created a circuit on a parylene film just a single micrometer thick. That's about one sixtieth the thickness of a human hair. The scientists achieved this by building the circuit on a vinyl polymer base that's then dissolved away, leaving the ultra-thin, ultra-flexible circuit intact.

The resulting circuit can be draped over human hair, plastered on human skin, or pasted on a plant leaf, without cracking or losing conductivity, as show in these images from theresearch paper published in Nature Communications:

Applications for such technology sound positively sci-fi: the Swiss research team envisions a transparent circuit on a contact lens to sense the increased pressure in the eye that causes glaucoma. Other applications could include implanted sensors that continually monitor blood pressure in heart patients.

The limiting factor right now: everything you'd want to plug in to that circuit. Batteries, for example. Still, the idea of a circuit you wear on your eyeball makes Google Glass seem positively quaint. More here.

Wireless Internet Is Coming To Your Next Car

GM is calling it OnStar 4G LTE. What does this mean for drivers or passengers? It means their next Corvette, Impala or Silverado will have a wireless hot spot for their smartphone, tablet, laptop, or Apple Newton. GM says this technology will be on nearly every Chevrolet car, and each vehicle can connect multiple devices.

Yes, plenty of car companies have been doing this a while, particularly on higher end models. But GM says Chevrolet will have the broadest implementation of 4G wireless of any car brand, and it will be across multiple price levels.

The Internet connection will allow for more than just fast Jalopnik browsing on the go. GM says the built-in 4G LTE connection will allow them to update their vehicles with the latest software and apps remotely, so they can continually tweak and improve their infotainment systems. The new technology coincides with the 10th generation of OnStar, which was first released in 1996.

Pricing hasn't been announced, but GM says if you're a current AT&T customer you can add this to your existing data plan.

What else is coming to your next car? Apps! Apps, of course. Apps like The Weather Channel, NPR, Cityseeker and various radio streaming programs. For better or worse, the car is becoming more and more like your smartphone every year.

As The Detroit News notes, in-car wireless Internet is one of the next really big automotive technologies. Both BMW and Audi have announced 4G for their cars. Besides the convenience of a mobile hot spot, it's expected to be a moneymaker for these companies:

Analysts say GM could see a revenue boost from the new 4G Wi-Fi service. IHS Automotive last year estimated 4G LTE could add $400 million in gross profit by mid-decade; it was cited in a Citi Research investment note.

While purists may scoff at the idea of in-car Internet for devices, you have to know that mainstream drivers not only want this, but are fully planning to make use of it. It's probably just a matter of time before this becomes de rigueur on all new cars. More here.

You'll Happily Swap Your Old Bulbs For This Interactive Party Ball

If you're outraged that the government would dare tell you what kind of lightbulbs you should be able to buy, ION Audio's new Party Ball should help quell your rage. It's designed to screw into a standard ceiling mounted light socket, but instead of just providing a warm glow to illuminate a room, it puts on a dazzling colored light show.

Who could possibly need incandescent bulbs anymore when this thing promises to turn every room in your home into a personal night club? The Party Ball's colored LEDs shine in a 360 degree arc so every corner of a room gets bathed in tinted light. And it's got a built-in microphone so the flashing and pulsing lights react and sync up to whatever music you happen to be playing. Pricing hasn't been announced just yet, but you can rest assure it won't include a cover or a two-drink minimum. More here.

This Connected Bluetooth Toothbrush Will Nag You More Than a Dentist

We all know we should be brushing more diligently several times a day, but without our dentists regularly shaming us into better oral hygiene, that rarely happens. So a Paris-based company called Kolibree has created what it claims to be the world's first app-connected toothbrush that will encourage better brushing habits between dentist visits.

The toothbrush may look like your run-of-the-mill electric model, but it's been enhanced with a wireless Bluetooth connection that lets it report your brushing times and habits to an accompanying app. Not only does this give a user insight into how long they actually brush versus how long they should be brushing, it also allows oral hygiene to be turned into a game to encourage kids to stay on top of tending to their teeth. And the company intends to make the collected data available through an API letting other developers create brushing-based games and other applications.

Depending on the model, Kolibree's connected toothbrush will sell for between $99 and $200 when it becomes available for pre-order this summer. But the accompanying app will be free, and the cavity-free dentist visits that follow (hopefully) will be painless. More here.

Light Up Spurs For Cowpokes Who Ride Bikes, Not Horses

If you have to ride your bike at night, there's no such thing as wearing too much reflective material—after all, you want to make yourself as visible as possible to those with whom you share the road. But a flashing light can ensure a driver spots you well before the headlights of their car do, and with a pair of these glowing LightSpurs clamped to the back of your shoes, you'll stand out like a sore—but safe—thumb.

Powered by a small CR2032 watch battery, the waterproof LightSpurs will run for about 100 hours in flashing mode before you need to swap in a new one. They can also be set to steadily glow, though that will reduce your battery life. They sell for about $20 each, but in theory, you only need to wear one on the side of your bike that's most visible to traffic. Unless you're going for the whole wild west effect—in that case, a pair of spurs is definitely the way to go. More here.

This Pickup Truck is Made of ice and you can Actually Drive it

Behold the first self-propelled ice sculpture ever—a truck made of ice that actually works! It's a real truck, using 11,000 pounds of ice over a regular truck chassis complete with engine and electrical system. Check out the videos to see how they built it—and how it melted.

The truck ran for 1.6 kilometers at about 20 km/h on December 12, 2013.

A Fold-Flat Watering Can Designed For Your Cramped Balcony Garden

If you live in an apartment or condo in a big city, and have managed to find a little room on your tiny balcony for a modest garden, you probably don't have much space left for the tools needed to toil over your cramped crops. So inventor Marc R. came up with this rather cleversoft-sided watering can called the Squish that's thin and easy to store when it's empty.

Marc is working with Quirky to make the Squish a reality, but in the meantime we can marvel at its design. Featuring a canvas bladder like ones many canteens are made from, the Squish expands from just one-inch thick when empty and stored to eight-inches across when full of water. It can hold up to a full gallon of water, and features a folding spout that helps minimize the Squish's footprint even further. And now that the design is nearly finalized, hopefully Quirky will get this into production and in stores in time for your Spring planting. More here.

Where Emotions Hit You, Visualized

Nerves make your stomach churn; embarrassment brings a glow to your cheeks. Emotions clearly have a direct physiological effect on our bodies, and now a team of Finnishresearchers has analyzed exactly how—and represented them in this visualization.

To construct the maps, the researchers showed 773 participants different words, stories, movies, and expressions, and had them highlight on a human silhouette the areas of the body in which they felt decreasing or increasing activity. More activity sees the color change from black to red to yellow, while decreasing activity is represented by an increasingly bright shade of blue.

The results, published in the Proceedings of the National Academies of Sciences, tally with many of the experiences you've probably had: depression is linked with a deadening in the limbs, while shame induces bright spots on the cheeks. Sadness even features activity in the eyes, presumably representing the tears experienced by participants.

While the authors willingly admit that the results could be influenced by cultural references and stereotypes about emotions, they rightly point out that the responses are clearly culturally universal; it's worth noting that participants were drafted in from both Finland and Taiwan. Indeed, the researchers claim that such universality is likely a result of a biological basis for our response to emotions, rather than a cultural one. Not that it'll help much next time you blush your way through a date. More here.

Beat-Matching Glowing Sunglasses Are Perfect For New Years Eve and Morn

It's New Year's Eve and unless you've got children to tend to you'll probably be partying well into 2014 this evening. And while normally sunglasses aren't required for the middle of the night, these Dropshades are, since they feature a glowing pulsing EQ that stays in sync with whatever music you're listening to. And, the next morning when you're hungover and dodging the sun, you'll be even happier you're wearing them. Powered by a USB-rechargeable battery, the $50 specs use six colored LEDs on each side to light up the pulsing bars, but thankfully the glow isn't visible and won't blind you while you're wearing them. 

A single charge will keep the party going for up to 14 hours, and the animated EQ automatically adjusts itself as the music gets louder and louder. So they're perfect for evening, even though they don't spell out 2014. More here.

Why do so many galaxies in space look like this?

Flat. Like a streak across space. Thin. Stretched out. How come whenever we see galaxies, they always look like this? NASA has the answer. And it has something to do with how a ball of dough becomes pizza.

This image of spiral galaxy ESO 373-8 was captured by NASA with the Hubble telescope. It shows a galaxy that's 25 million light years away but its shape already seems so familiar. Why is that? NASA explains:

Try spinning around in your chair with your legs and arms out. Slowly pull your legs and arms inwards, and tuck them in against your body. Notice anything? You should have started spinning faster. This effect is due to conservation of angular momentum, and it's true for galaxies, too.

This galaxy began life as a humungous ball of slowly rotating gas. Collapsing in upon itself, it spun faster and faster until, like pizza dough spinning and stretching in the air, a disc started to form. Anything that bobbed up and down through this disk was pulled back in line with this motion, creating a streamlined shape.

Angular momentum is always conserved — from a spinning galactic disk 25 million light-years away from us, to any astronomer, or astronomer-wannabe, spinning in an office chair.

Scraping Decades of Grime, Car Exhaust, and Mold Off Rome's Colosseum

The Colosseum in Rome is being cleansed of car exhaust that has built up over decades, ever since Mussolini's ill-advised decision to build a major road nearby.

The exhaust, however, is just part of an overall mixture known as "black rust," CBS Newsreports: "Exhaust, pollen, algae and fungus growths form a coating the restorers call 'black rust' which has to be washed with non-chemical solutions and rubbed off gently in order not to damage the stonework."

From the copy of David Gissen's excellent book Subnature, full of interesting examples of how the pollution accumulating on historical monuments around the world offers its own weird form of cultural and industrial history. The idea that buildings, statues, and other structures—even geological features—should be scraped clean of their everyday chemical environments is, of course, obvious from the point of view of wanting to preserve their vulnerable rocks and masonry. But it is also, Gissen suggests, somewhat over-enthusiastic or even misguided to think that we can return something to its "original" state. In fact, he argues that to see these structures in their natural—or, as he puts it, subnatural—context we should see them still dotted with weeds, pollution, dust, even bird crap and gum.

After all, the candle-blackened interiors of churches, or the dusty banisters of private homes, are as revealing of the lifestyles of the people who once lived in or used those buildings as are the carefully polished surfaces we might encounter on the old knick-knacks in a museum. Even centuries of wood smoke and other layers of urban pollution that accumulated on, say, Notre Dame in Paris before it was cleaned in the 1990s are not without their historical insights. Spotlessly white stone exteriors are not necessarily historically accurate, in other words, at least not in the sense that any city—except perhaps Singapore—can boast of a truly sterile condition for its major public and private structures.

Gissen points out that perhaps there is an unexpected interpretive value in the grime now coating parts of the urban world, and, even if that grim shouldn't be saved, there is value in taking a closer look at it before rushing to wash it away.

This is not to suggest that we shouldn't clean the Colosseum, as this toxic mixture of contaminants would eventually eat the building away, like a tooth disappearing in a glass of Pepsi. But it is to say that it might be worth saving a small section of the building—even just a disconnected stone that poses no risk of structural decay—to remind future visitors of what the urban context can really do to even its most monumental inhabitants.

Think of the small patch of smoke-stained ceiling in New York's Grand Central Station. Unbeknownst to most commuters, there is a tiny spot on the ceiling where restorers left a small, secret historical reminder:

Look up at the ceiling: In the northwest corner, you'll see a little square black patch. Now imagine extending that color across the entire constellation that's painted on the ceiling. That's what was there before Grand Central Terminal was dramatically restored in the 1990s. That little black patch was left as a reminder of the bad old days. And what exactly does that black patch consist of? Decades of dirt? Try again. It was the result of decades of smoking in the terminal. That's old nicotine and tobacco residue that was preserved, and it's a testament to how dramatic this restoration was.

Perhaps something similar could be left on the Colosseum, to remind us of the blackening presence of roads and the bad decisions of earlier urban planners. More here.

The Naked Metal Core of a Dead Planet Is Circling the Sun

You know about those plans to visit an asteroid in the next few years? Well, a select group of astronauts would like to sweeten the deal. Why visit a regular asteroid, when there's a planet's solid metal floating up there and it's likely magnetic?

Asteroid 16 Psyche is the intriguing candidate in question. Linda Elkins-Tanton of the Carnegie Institute recently proposed a mission to Psyche at a meeting of the American Geophysical Union in San Francisco. The composition of the asteroid is very much like Earth's core, but its soft outer layers have been stripped away by other incoming asteroids.

If, indeed, the metal core currently in orbit used to be molten, it's also probably highly magnetic; Elkins-Tanton even refers to the asteroid as "a little refrigerator magnet in space." This could likely have an effect on how we design the spacecraft or satellite that will visit it, and the bizarre landscapes that might be found on the asteroid also sound spectacular. Simulations of how the asteroid might have lost its outer layers suggest, for example, "that Psyche's craters could have dramatic rims that froze in splash-like patterns." The scientists studying it describe it as a "metal world."

"A mission there is the only way that humankind will ever visit the core of any body," Elkins-Tanton said, adding that Psyche could teach us a lot about how planets work. "We can learn about the building blocks of the planets in the first million years of the solar system in a way that we can't do any other way."

That is, if the metal spaceship doesn't get stuck to the magnetic asteroid in the process. More here.

Here Is a Video of Tiny Mice Decorating a Tiny Christmas Tree

Pop-up Ports Keep this Backup Battery Slim and Svelte

What's the point of carrying around a backup battery that's larger than the smartphone it's designed to boost? It defeats the purpose of carrying a pocketable device in the first place. When it comes to backup batteries, slim is the only way to go, and with a set of pop-ports that keep its USB ports free of dust and crap, Paick's Noble will easily slip into a bag or pocket.
The Noble's 6,000mAh battery is large enough to bring three iPhones back from the dead, or completely recharge an iPad or other larger tablet. At half an inch thick it's not the slimmest battery you can buy, but with two USB and a microUSB port, it could be one of the more useful tools in your bag. And, with an introductory price of just $50 it's a ridiculously affordable way to ensure you never find yourself with a dead phone. More here.

Mikhail Kalashnikov Has Died

Mikhail Kalashnikov, inventor of the AK-47 assault rifle, passed away this morning at the age of 94, according to the BBC.

Kalashnikov's contributions to small arms design cannot be overstated. His AK-47, developed in 1946, is the embodiment of the Soviet virtues of simplicity and reliability. Rugged and easily maintained, AKs are capable of operating in extreme conditions that would disable other weapons. They're the most widely produced assault rifle on the planet for good reason. As their creator told Reuters in 2009, "When a young man, I read somewhere the following: God the Almighty said, 'All that is too complex is unnecessary, and it is simple that is needed' ... So this has been my lifetime motto – I have been creating weapons to defend the borders of my fatherland, to be simple and reliable."

Kalashnikov's military career began 1938, when he was conscripted into the Red Army as a tank mechanic. He quickly rose to a command position in the 24th Tank Regiment, 108th Tank Division stationed in Stryi. The injuries he sustained there during the Battle of Brody in 1941 would change the course of his life.

During his rehabilitation, Kalashnikov overheard other wounded soldiers complaining about the sub-par performance of their rifles, inspiring him to design a more effective weapon. His first outing, a sub-machine gun, was passed over, but it both served as the foundation for the later AK-47 and demonstrated his engineering talents, earning him a position at the Red Army's Central Scientific-developmental Firing Range for Rifle Firearms of the Chief Artillery Directorate.

While he's best known for his signature assault rifle, Kalashnikov has been credited with more than 150 small arm designs over the course of his illustrious career, including the AK-47, AK-74, AKM, and PKR light machine gun. These weapons have revolutionized warfare, and are now employed by more than 50 nations around the world. More here.

Finally, a Real-Life Memory-Erasing Technique for Humans

Get your Eternal Sunshine of the Spotless Mind references ready, because scientists have just figured out a way to erase bad memories using—you guessed it—electroshock therapy. Get ready for on-demand forgetting. It's a real thing now.

A team of Dutch neuroscientists recently devised an electroconvulsive therapy (ECT) to "target and disrupt patients' memory of a disturbing episode." Nature explains how patients were showed two traumatic narratives in a slideshow and then subjected to the new technique:

The team later prompted patients to recall only one of the stories by replaying part of that slide show. Immediately afterwards, when the reactivated memory is thought to be vulnerable, the patients received electroconvulsive therapy.

One day later, when given a multiple-choice memory test, patients were significantly worse at remembering details from the reactivated story, performing near chance. Patients' memory of the other story, however, remained largely unscathed.

The test was conducted on 42 patients with severe depression, so there's a chance it could work differently on normal patients. It's also worth pointing out that ECT is no fun. It induces seizures and, well, doctors are shocking patients' brains with electricity.

A breakthrough like this was due, though. For years, scientists have been saying we're on the cusp of developing a way to erase memories, and last year, they successfully erased the memories of sleeping mice. Then, just a few months ago, they managed to identify the gene that helps us forget. But a point-and-click method for erasing particular memories, that's proved elusive. Until now.

As is often the case with groundbreaking research, the next step is more research. But the scientists involved in the field of memory erasure hold out hope that advances like these will lead to breakthroughs in the treatment of conditions like severe depression and post-traumatic stress disorder. After all, sometimes, ignorance really is bliss. More here.

Snapchat's Update Lets You Replay One Snap Per Day

Snapchat just rolled out a big update with a bunch of new features, the most important being Replay. Now, every day brings a one-time chance to review the most recent message in your stream.

The Replay option is opt-in for recipients, not senders, and only gives you one extra look at the message — it's still deleted from Snapchat's server after the first view. The rest of the app's updates include color and black-and-white visual filters, a larger Helvetica caption font, front-facing flash (using your phone's screen as a flash), and an option for up to 7 "best friends." And a little puzzlingly, smart filters, which overlay the time, temperature, or speed you were traveling when you took your snap. More here.

Crazy Hacker Wants to Save Bitcoin by Blasting a CubeSat into Space

Jeff Garzik is a dreamer. You know, the kind of guy who probably thought that he could fly with his red cape when he was younger. (Note: As a toddler, I unsuccessfully tried to fly several times.) But now Jeff Garzik is looking higher. He's looking to space, and he wants Bitcoin to live there.

No, seriously. Garzik recently proposed a plan to send a Bitcoin computer into space with an inexpensive CubeSat, so that there would always be a node in the network that hackers couldn't crack. The CubeSat would be able to communicate with Bitcoin computers on Earth by radio.

It sounds crazy, but it's actually not a bad idea. As Wired's Robert McMillan points out, Bitcoin computers are vulnerable to so-called Sibyl attacks. "It could give criminals a way of spending their bitcoins more than once," he explained in a recent blog post, "and it's also part of the so-called selfish miner scenario that Cornell University researchers described last month, saying it could bring down the entire system." Bring down the entire system? That can't be good.

Garzik is serious, and he's already raised 37 Bitcoins—about $37,000 at current exchange rates. Trips to space are more expensive than that, of course, but the dreamer thinks he can get everything together and have a Bitcoin computer in space in only three to five years. It's not the first such plan, either. More here.

Stone-Tipped Spears Pre-date the Human Race

Spears feel very much like a human weapon of war—so it's surprising to find out that, in fact, the stone-tipped projectiles pre-date our species by a bewildering 85,000 years.

A team of archaeologists from University of California at Berkeley have uncovered remains of the oldest known stone-tipped throwing spears, and their analysis suggests they're 280,000 years old. They were found at an Ethiopian Stone Age site known as Gademotta, and are reported in PLoS One.

But that age means that they're far older than Homo sapiens—which either suggests we're wrong about how long our race has existed, or that our predecessor species were smart enough to make weapons. Yonatan Sahle, one of the researchers, explains:

"Technological advances were not necessarily associated with anatomical changes.. The advances might have started earlier... High-quality raw materials were nearby, so those could have allowed for the full expression of technological skills... [and there] was a mega lake at the site. It might have attracted stable occupations there, further fueling technological advances."

It seems most likely, then, that intelligence existed before us that was enough to assemble some crude, stone-tipped weapons. Most likely, say the researchers, they were put together by Homo heidelbergensis—Heidelberg Men to their friends—who lived in Africa, Europe and western Asia from at least 600,000 years ago. And clearly had a little bit of an aggressive streak. More here.

Make Yourself Known With a Bike Light That's As Loud As a Car Horn

If the ringing of your bicycle's bell isn't getting the response you're after from motorists—namely, please don't hit me—it might be time for an upgrade. Sixty-five bucks will get you the Orp, an LED headlight that easily lashes and unlashes from your handlebars and emits a loud shriek that can be heard inside a running car—even with the windows rolled up.

The Orp actually has two different horns to choose from. A polite and subdued 76-decibel chime to alert pedestrians of your approach, and a more obnoxious—though effective—96-decibel shriek to let drivers know you're nearby.

It's completely waterproof, and of course rechargeable—the 87-lumen LED headlights run for a solid three hours on a charge (and even longer if set to flash). It's a little on the expensive side—no doubt there—but can you really put a value on not getting creamed by a distracted driver who didn't know you were there? More here.