experiment
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NASA's new cooling pump doesn't need moving parts, set to chill out in space next month
It's pretty easy to cool down an overheating desktop computer with an extra fan, but what do you do if there's no air? That's the hurdle NASA's engineers are hoping to clear with a new prototype pump that the agency unveiled last week. The pinkie-sized instrument relies upon a technology known as electrohydrodynamic (EHD)-based thermal control, which uses electric fields to inject coolant through small vents on a thermal cold plate, before moving the extra heat to a radiator and spreading it far away from any temperature-sensitive areas. With no moving parts, the lightweight cooler uses only about half a watt of power and can be sized to work with small electric components or lab-on-a-chip devices. The challenge is to make sure that the pump can survive the vibrations of a rocket launch, though NASA will put it to the test during a rocket mission on June 9 and in 2013, when an EHD thermal cold plate will be placed on the International Space Station. Start your countdown clock and blast past the break for a full press release. [Thanks, Kevin]
Rumor: Apple testing MacBook Air with A5 processor
Japanese blog Mac Otakara claims sources have told them Apple is testing a MacBook Air with an A5 processor, the same CPU powering the iPad 2. While the machine performed "better than expected" according to their source, Mac Otakara says it's unclear whether this test machine was running Mac OS X or iOS. At any rate, the site claims this A5 variant MacBook Air has been created "just for experiment." Mac Otakara has been a reliable source of rumors in the past, having been one of the first sites to accurately depict the updated form factor of the iPad 2. If Apple has indeed built such a device, it's unlikely the company intends to put it on the market. While the A5 processor is powerful enough under iOS, in terms of raw performance it pales in comparison to even the least powerful Intel chips. For example, the iPad 2's Geekbench score is around 720, while the lowest-rated MacBook Air processor scored over 2000. Benchmarks don't tell the whole story, of course, but they're a fairly reliable predictor of the general performance you can expect to get from a machine. If Apple's experimenting with ARM processors in its laptop line, it's very unlikely that it's a simple matter of trying to run Mac OS X on the A5 and more likely that Apple is looking for ways to run iOS in a notebook form factor. This could be something as simple as a device that looks like a MacBook Air but has a touchscreen and runs iOS -- basically an iPad with an attached keyboard. Or Apple could have more ambitious plans in mind, with an A5 processor running as a sort of sidecar to a standard Intel CPU, with Mac OS X and iOS both capable of running on the same machine on their respective CPUs. Under such a scheme, iOS might run as a sort of "layer" atop Mac OS X -- rather like Dashboard does now, but more like Dashboard after a serious dose of growth serum. From what we've seen of Mac OS X Lion thus far, it already looks as though Apple's looking at ways of merging OS X and iOS as far as the software's concerned. If Mac Otakara's sources are correct, it seems it's just a matter of time before the hardware follows.
NASA concludes Gravity Probe B space-time experiment, proves Einstein really was a genius
Well, it looks like Einstein knew what he was talking about, after all. Earlier this week, researchers at NASA and Stanford released the findings from their six-year Gravity Probe B (GP-B) mission, launched to test Einstein's general theory of relativity. To do so, engineers strapped the GP-B satellite with four ultra-precise gyroscopes to measure two pillars of the theory: the geodetic effect (the bending of space and time around a gravitational body) and frame dragging (the extent to which rotating bodies drag space and time with them as they spin on their axes). As they circled the Earth in polar orbit, the GP-B's gyroscopes were pointed squarely at the IM Pegasi guide star, while engineers observed their behavior. In the universe outlined by Einstein's theories, space and time are interwoven to create a four-dimensional web, atop which the Earth and other planetary bodies sit. The Earth's mass, he argued, creates a vortex in this web, implying that all objects orbiting the planet would follow the general curvature of this dimple. If the Earth's gravity had no effect on space and time, then, the position of NASA's gyroscopes would have remained unchanged throughout the orbit. Ultimately, though, researchers noticed small, but quantifiable changes in their spin as they made their way around the globe -- changes that corroborated Einstein's theory. Francis Everitt, a Stanford physicist and principal investigator for the mission, poetically explained the significance of the findings, in a statement: "Imagine the Earth as if it were immersed in honey. As the planet rotated its axis and orbited the Sun, the honey around it would warp and swirl, and it's the same with space and time. GP-B confirmed two of the most profound predictions of Einstein's universe, having far-reaching implications across astrophysics research. Likewise, the decades of technological innovation behind the mission will have a lasting legacy on Earth and in space." The GP-B mission was originally conceived more than 50 years ago, when the technology required to realize the experiment still didn't exist. In fact, the experiment didn't actually get off the ground until 2004, when the satellite was launched into orbit 400 miles above Earth. After spending just one year collecting data (and an impressive five years analyzing the information), NASA has finally confirmed something we always quietly suspected: Einstein was smart. Head past the break to see a more in-depth diagram of how the GP-B gathered its data.
Nokia experiments with Drop, elegantly shuttles photos and web links to mobiles (video)
Proving not all clever projects need witty names, Nokia introduced an experimental project known as Drop -- and it's likely to make your web browser and Symbian phone the best of friends. Intrepid testers may now push links, pictures, and even apply wallpaper to linked mobile devices, all from the comfort of Firefox or Chrome. While Nokia intends to add more features as development matures, what we're previewing appears decidedly familiar. Symbian^3 and S60 5th Ed. users can get a taste of the clever trickery right now, though considering Nokia's excitement in heralding this innovation late in Symbian's life cycle, we wonder if our friends from Espoo are pondering Drop's future for Windows Phone handsets. Want to join us in the speculation? Take a gander at the video after the break to see what these wide-eyed developers have in store.
Quadrocopters juggle balls cooperatively, mesmerize with their lethal accuracy (video)
You've seen one quadrocopter juggle a ball autonomously while gliding through the air, but how's about a pair of them working cooperatively? Yeah, we've got your attention now. The Zurich-based lab that brought us the piano-playing and ball-bouncing quadrocopter is back with a simply breathtaking display of robotic dexterity and teamwork. Like all mad scientists, they call their Flying Machine Arena research "an experiment," though we see it a lot more as a Pong-inspired dance of our future overlords. We all know how far video games have come since two paddles batted a ball between one another, right?
Adobe outs experimental Flash-to-HTML5 conversion tool, calls it Wallaby
Ah, if only we could flip a big happy switch and convert all the web's Flash content into (functional) HTML5 code. It's a dream shared by many and, funnily enough, the company pushing to make it a reality is none other than Adobe itself, the owner and proprietor of Flash. Its Labs research team has just released an experimental new dev tool, dubbed Wallaby, that's targeted at taking Flash-encoded artwork and animations and turning them into a more compatible mix of HTML, CSS and JavaScript. Of course, the intent here is not some magnanimous move to free us from the shackles of Flash -- Adobe openly admits that the initial goal for the new tool will be to help convert animated banner ads so that they work on the iOS platform -- but hey, even bad tools can be used for good sometimes, right?
Kiss Controller lets you play a bowling game with your tongue... while it's in someone else's mouth (video)
Oh, this isn't weird at all! The Kissing Controller, an experimental project by one Hye Yeon Nam, is designed so that players of a bowling game can impart power and direction to their spherical projectile by performing the timeless act of smooching one another. A customized headset is required for one of the participants, acting as the input receiver, while the other straps a magnet to his or her tongue and goes to town with some literal full motion controls. Thrust is added to the on-screen ball in accordance with how vigorously you move your tongue around, something we're sure your partner will appreciate. Video after the break.
Scientists use Wiimote to measure water evaporation rates
A recently published report in the Water Resources Research academic journal describes an experiment undertaken by a team tasked with measuring evaporation rates by monitoring water levels. How is this related to our favorite hobby? Well, rather than use a hypersensitive monitor or a high tech ballast system, they used a Wiimote. According to the report, the scientists pointed the Wiimote's IR LEDs at reflectors attached to a float in a water pan, and then used the reflected light (usually used to see where the sensor bar is relative to the controller) to check and see how quickly the water was evaporating. The results were pretty amazing, actually -- not only did the Wiimote pick up even slight changes in the water level, but it was able to compensate for other movement, due to waves or water displacement. That's impressive for a little $30 game controller. We've already seen Kinect do some pretty impressive things as well, including recreate a Minority Report-style interface, and recognize sign language. That leaves just one motion controller without its own academic degree -- better get a Move on, Sony.
Daito Manabe's sensor-based drum machine might actually melt your face off
Believe it or not, this isn't the first time that Daito Manabe has used some electrical stimulation in a face-twisting musical experiment, but he's taken things one big step further with his latest project. As before, this rig creates wild facial twitches controlled by music (not the other way around), but it also includes a second set of sensors that allows another person to tap on a virtual drum kit and send the (hopefully) willing subject's face into a fit of synchronization. All of which is, of course, better seen than explained -- check it out in action after the break. [Thanks, James]
ISS gets a greenhouse for experiments, comforting homesick astronauts
"Caring for plants is a good way to maintain memories of Earth." You know, because anything can happen.
British police force tweeting every emergency call over 24 hours, ironically keeps getting TwitJailed
The Greater Manchester Police team has decided to show the world how busy law enforcement can get by tweeting out every enquiry/emergency call it has to deal with. Only problem is that it keeps ending up in Twitter jail for posting too much. This one-day-only experiment (or is it a publicity stunt?) will detail every local call to 999 (the British 911) and the GMP's switchboard, uncovering such exciting episodes as "concern for welfare in Rusholme" and "report of threats and abuse on Facebook in Salford" (we're not making this up). It's intended to illustrate to the public and politicians alike the real life daily grind that police officers go through; and we see their point, it must be hell setting up all those new accounts to avoid Twitter's own rule enforcers. Tsk tsk.
Study: Games can improve vision of adults with lazy eye
Kids with amblyopia, or "lazy eye" as it's commonly known, are familiar with the treatment/ritualistic torture of having a patch put over the good eye and being made to read, in order to strengthen the weaker eye. This doesn't work as well for adults with the condition -- unless they're playing video games while patched. That's the takeaway from a study by a group at the Helen Willis Neuroscience Institute at the University of California, Berkeley. According to GamePolitics' summary of the study, 40 hours of gameplay using the "bad" eye was equivalent to 120 hours of normal, non-game-specific occlusion therapy. The test patients experienced an average of 30 percent improvement in visual acuity. Joystiq is not qualified to dispense medical advice, but it sounds like -- if your bad eye is still good enough to figure out what's going on in a video game -- this might be worth trying. Suddenly the impossible dream of being able to kind of see the 3DS's stereoscopic effect seems within reach for the first time. [Image credit: Magiceye.com. (The image is basically indecipherable for those with amblyopia.)]
First biofuel cell successfully implanted into living creature, living creature to be implanted into The Matrix
While miscreants are harvesting organs from unsuspecting tourists, researchers are busy harvesting energy from the human body. One promising tech that could power future generations of implanted medical devices is the Glucose BioFuel Cell (GBFC). In fact, a team of researchers have created the first known GBFC to function inside a living body -- 11 days inside "Ricky" the lab rat's peritoneum, to be exact. The small device produced 2 microwatts of power over several hours, achieving a peak energy density of 24.4 microwatts per milliliter. The study concludes that a larger GBFC could be used to power a standard pacemaker (requiring ten microwatts of sustained power) yet still be smaller than the batteries in use today. Co-author Serge Cosnier of the Université Joseph Fourier says that an improved GBFC could even power biosensors like the ones proposed for insulin pumps. Until that day arrives, click through for the before- and, um, organic after-implant pics. The fact that the rat's body had coated the GBFC device with tissue and newly grown blood vessels is proof that the body had accepted it for glucose and oxygen processing. P.S. That's the Engadget Lolrat, not Ricky, pictured above. Ricky was apparently unharmed... this time.
iPad used for 3D effect
This is really wild -- Japan's Aircord lab has used the iPad to create a 3D effect, but not what you'd think, with the standard glasses and views. Instead, the iPad is used to project a set of three images onto a specially-coated glass pyramid, which then reflects the three video images in all directions, creating a 3D effect as you move around the display. You can see the thing in action in the video after the break -- it's not completely perfect (obviously, when you hit a seam while moving around, the image distorts and breaks up), but there is a definite projected hologram feel to it as you look head on. And really, any high resolution display could be used here, but I'm sure the iPad is the cheapest and most handy option for something like this. Very cool idea for sure -- it's tough to think of a real application (maybe a museum installation is the most obvious use), but it is a neat effect. [via MacStories]
Box.net's 20 iPads arrive at D7 Consulting
A few months back, Box.net launched its effort to deliver 20 brand new iPads to a business that could make use of Apple's tablet and the cloud sharing service in an innovative and interesting way. Box.net eventually chose D7 Consulting, a construction consulting company in Newport Beach, California, to receive the iPads. Yesterday, I drove down to the company HQ to see the beginning of the project. Over the next 12 months, Box.net will provide not only the free iPads but also free service to D7's employees. Together, the two companies hope to get a good look at, as Box's Marketing Communications Manager Sean Lindo put it, "the possibilities and realities of cloud and mobile devices for how people need to work today." TUAW will be following up periodically with Box.net and D7 to see how the project is going. As you can hear directly from D7 CEO Joe Daniels in the second half of this post, the next year is going to be an interesting experiment, not only to see how his employees are able to use iPads with their work on construction sites but also to see how Apple's tablet can be used reliably and well in the workplace. In the gallery below, you can see yesterday's unboxing. Read on for more on how this all came about and what challenges Daniels expects to face in the coming weeks. %Gallery-97114%
British scientist becomes first human 'infected' with a computer virus
Sure, a cybernetic-filled, dystopian future may sound nice and cheery, but what happens when all your snazzy implants get infected with a computer virus? That's what one brave researcher at the University of Reading is attempting to find out, and he's now actually gone so far as to willingly "infect" himself in the name of science. As you might expect, however, this is all this very much a proof of concept, but Dr. Mark Gasson says that the infected RFID chip in his hand was indeed able to pass on the virus to an external control device in his trials, and he warns that the eventual real world implications could be far more dire. Gasson is particularly concerned when it comes to medical implants, which he says could potentially become infected by other implants in the body, and even pass on the "infection" to other people. Head on past the break for the BBC's report, and try not to be too startled by the Dalek in the room. [Thanks, Mark S]
Starting from zero on the iPhone home screen
This is what my iPhone looks like right now. No, it's not because iTunes went crazy and deleted all my apps. I'm trying to figure out which apps I actually use. I've downloaded over 150 apps from the App Store. Of those 150, I have roughly 100 of them still in iTunes. I've tried grouping them using springboard pages, but I find it frustrating because I don't usually have 12 related apps. (I'm really looking forward to Folders in iPhone OS 4.) Here's how I have been organizing my pages: Page 1 and 2: anything app I use a lot or that may pop up a "badge" that I want to see. Everything else: launch using search. Here's the thing: I've gotten used to putting some apps on page 1 or 2 because I think I'm going to use them. The Phone app? I finally moved it off my Dock, but I left it on Page 1, even though I bet it's one of the apps that I actually use far less frequently than others. Read on for more... Update: A hat tip to Patrick Rhone's MinimalMac, where a version of this experiment appeared in January.
Kindle DX trial at Darden concludes it's academically woeful, personally enjoyable
Amazon's experiment of replacing textbooks with Kindle DXs in classrooms already took a pretty hefty blow from Princeton's feedback -- which described the jumbo e-reader as "a poor excuse" for an academic tool -- but here comes some more punishment courtesy of the trialists at Darden. The Business School describes the DX as clunky and too slow to keep up with the pace of teaching, with up to 80 percent of users saying they wouldn't recommend it for academic use. There is a silver lining to this cloud of hate however, as up to 95 percent of all project participants would be happy to recommend the Kindle DX as a personal reading device. That meshes rather well with the high satisfaction and sales figures e-readers are enjoying, but it does show that the hardware has a long way to go before it convinces us to ditch our paperbacks. [Thanks, Miles B]
A lava lamp and a Nexus One tested under 3 Gs of force (video)
Neil Fraser, a true pioneer of science, wasn't satisfied with just wondering whether a lava lamp will work on Jupiter. He opted instead to build a freaking centrifuge in the middle of his living room, strap an innocent lava lamp and a Nexus One to one end with counterbalancing weights on the other, and spin that monster up to find out for himself. His instrument was able to generate 3 Gs of lateral force (despite the Nexus One's G-Force reporting 2.0 Gs due to a bug, now reported to Google), which is comfortably above the 2.5 G gravitational pull that one might experience on the solar system's biggest planet. So, did the goo keep its mojo under pressure? Did the Nexus One survive the ordeal intact? Click past the break to find out.
Choose my adventure with WoW.com profiles
We're all still slaving away on WoW.com, finding bugs and filing feedback. To help that process along, we're going to try a little experiment. I'm going to level a character from level 1 to level 80, and all of it will be documented on my WoW.com profile. The hook is that you guys are going to decide most aspects of this character, such as race, class, and talent spec.Such things will be determined largely via polls right here on the front page of WoW.com, where I'll be giving weekly updates on my progress along with what I've learned about the class and the world and any other observations I might have. If you want a little more detail on the process such as where I'm going, what I've done, and any other little notes I make via the Adventurer's Note feature, you can follow that on my profile. If you don't dig our profiles portion of the site, hey, no problem. You'll still get weekly updates right here on the blog until I'm level 80.There are two polls: Race and Class. I will play whichever choices are the most popular. If the chosen race can't actually be the chosen class, I'm going to go with whatever is the most popular class that I can actually play as that race. The polls are below, and there's a little more information behind the cut underneath them.Update: Polls will remain open so those who voted can still see the results, but as of May 22nd, Gnome Warlock won the polls and the adventures have begun.%Poll-30341% %Poll-30352%
