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Flying drone can '3D print' with foam, help carry away hazardous objects
Flying drones with 3D printers attached to their body: it was only a matter of time until the two technologies met. Such a thing now exists, although we're not quite sure it's earned its printing qualification yet. Developed by a team at the Imperial College London, the "3D printing Micro Aerial Vehicle (MAV)" is a quad-copter that carries two chemicals that create polyurethane foam when mixed. Scientists say the foam can be molded to create non-complex structures or repair components, making the drone especially useful in hard-to-reach areas. The substance is also extremely sticky, which allows teams of drones to work together to remove dangerous objects from hazardous locations. Like the video below shows, the quad-copter can swoop in and "print" a layer of sticky foam, which will then stick to the underside of a bigger and more powerful drone so it can be transported away. Scientists drew inspiration from nature when developing the MAV, mostly notably the the swiftlet. The swiftlet is a small bird that builds nests entirely from threads of their saliva. Right now, the drone can only fly in controlled environments using sensors that feed real-time information back to a laptop. The next step will see the team equip the quad-copter with high-speed cameras, sensors and even solar panels, allowing it to fly autonomously and charge itself in any environment.
MAV follows in the giant robot footprints of Chromehounds
Indie-developed mech battle game MAV wants to teach us a valuable lesson: that the best walking tank is the one you build yourself. Inspired by games like Chromehounds, MAV (short for "Modular Assault Vehicle") is a mech battle game about creating and customizing the best rompin', stompin' robot war machine you can. MAV developer Chad Mauldin is currently asking for $20,000 on Kickstarter, though the game already has its big metal feet off the ground, so to speak. The $20,000 is to bring on an artist so that Mauldin can focus on coding. Mauldin has already released several builds of the game for PC, and those who contribute $20 or more to the campaign get access to these and all future builds starting March 5, 2014, when the Kickstarter ends. The MAV Kickstarter page stresses that the game isn't about sniping or quick kills, but rather strategic and planned combat, where locational damage and taking advantage of an enemy's structural weaknesses are key. Every module that makes up an assault vehicle in MAV has its own health and armor rating, and the pieces interact with one another. When a piece of your mech is destroyed, it takes with it any pieces that relied on it. See that enemy with seven guns attached to one arm? Just take out the shoulder and he'll find himself unarmed (pun intended). At the time of writing, Mauldin is more than halfway to his funding goal, with 24 days left. Though he doesn't list any stretch goals, he does note that he'd like to "eventually" bring the game to people not on PC, "whether it be on Mac and Linux, or even PS4 and Xbox One." [Image: Chad Mauldin]
Small winged bot flies autonomously for nine minutes, still can't find a mate
Many robots can fly, but only a few forsake rotors for more natural, if inefficient means of propulsion. These flapping bots have interested folks at the Delft University of Technology for many years, and their latest dragonfly-like effort has achieved what they're calling a first among winged machines: Autonomy. The DelFly Explorer is larger than creations past, but still weighs only 20g (0.7 oz), or the equivalent of roughly four paper airplanes. To flutter freely without human aid, the Explorer marries a barometer and gyroscope with two cameras for eyes, and a microcontroller for a brain. Mix that with some clever coding, and the automaton can take off and navigate its surroundings unassisted until its nine minutes of battery life are up. The DelFly crew imagine their bots could have both fun and functional uses in the future, but for now are busy adding multi-room navigation. At which point, DelFlies will be the perfect scouts for Google's terrifying robot army.
Harvard University's robotic insect takes its first controlled flight (video)
There's hardly a shortage of animal inspired robots, but few are as tiny as Harvard's autonomous RoboBee. The robotic insect has been around for a while, but researchers at the Wyss Institute for Biologically Inspired Engineering only recently managed a minor breakthrough: controlled flight. Using new manufacturing and design processes, the team has managed to keep the coin-sized bug aloft by independently manipulating the robot's wings with piezoelectric actuators and a delicate control system. "This is what I have been trying to do for literally the last 12 years," explains Professor Robert J Wood, Charles River Professor of Engineering and Applied Sciences. "Now that we've got this unique platform, there are dozens of tests that we're starting to do, including more aggressive control maneuvers and landing." There's more to be done, however. The tiny machine still requires a tether for power and control, and researchers are still studying nature to suss out how insects cope with flying through wind and the elements. Eventually, the team hopes to outfit the RoboBee with lightweight batteries, an internal control system and a lighter chassis. For now, however, they're just happy to learned to steer. Check out the insect in action after the break.
AirBurr micro air vehicle can self-right, take off again (video)
EPFL's been tweaking its eerily floating AirBurr since 2009, and its latest iteration adds four carbon-fiber legs, hopefully ensuring you'll never have to chase after and recover it after a crash. When the seemingly clunky frame crashes, it's that same intentional design that will ensure gravity rolls the device towards its side, allowing the legs to extend out and let the MAV relaunch itself -- even off gravel. Hit up the source link to see how the design has evolved over the years, but before that, see it crash and burn return right after the break.
Laser-toting MAV can find its way in tight spaces, might eventually hunt you down (video)
A perpetual weakness of MAVs (micro air vehicles) is their frequent need for hand-holding in anything other than a wide-open or very controlled space. If they're not using GPS or motion sensors to find their locations, they can't turn on a dime the way a human pilot would. Adam Bry, Abraham Bachrash and Nicholas Roy from MIT's CSAIL group haven't overcome every problem just yet, but they may have taken combat drones and other pilotless aircraft a big step forward by giving them the tools needed to fly quickly when positioning isn't an option. Uniting a laser rangefinder with an existing 3D map of the environment -- still 'cheating,' but less dependent -- lets the prototype flyer find the distance to nearby obstacles and steer clear even at speeds that would scare any mere mortal MAV. Ideally, future designs that can create their own maps will be completely independent of humans, making us think that MIT's references to "aggressive" autonomous flight are really cues to start hiding under the bed.
A bird in the hand thanks to a robot that can perch
Land-bound robots? Been there, done that. Researchers at the University of Illinois at Urbana-Champaign are taking things up a notch with a bird-style bot capable of autonomous flight. By replicating the features that enable birds to make a soft landing -- including the flapping wings that help them change direction -- the researchers developed the first micro aerial vehicle (MAV) capable of swooping down to perch on a human hand. The craft forgoes a vertical tail, which birds also lack, to allow for enough agility to land on a small surface. Articulated wings help the robo-bird complete the maneuver successfully, by first gliding into position and then pitching up and slowing down. Who knew perching was so complicated? Besides just providing a super-nifty party trick for these lucky researchers, the autonomous aircraft could be used in urban surveillance, where a small size would come in handy. Check out the MAV in action, along with the press release, after the break.
DARPA harvests energy from cyborg beetles to keep them brainwashed
Beetles packing cybernetic implants that control their brains make a cheaper and more useful micro-air-vehicle than a fully robotic one -- but due to the weight of the battery packs required, development has been slow. Now a DARPA-funded team at the University of Michigan thinks it's eliminated that problem. By attaching piezoelectric generators to each wing, the researchers can harvest the energy generated in flight and use it to juice the mind-control circuits. At present, the system generates about half the energy the team thinks it can produce, as innovations in ceramic production of the miniature devices should solve that. An experimental robotics project in competition with a cyborg one? This all feels a bit too RoboCop for us.
T-Hawk UAV enters Fukushima danger zone, returns with video
We'd love to head on down to Fukushima with a DSLR and some iodide pills, but that's obviously not going to happen. Sending in a flying robot seems to be the next best thing, though, and that's exactly what Tokyo Electric Power (TEPCO) has done. T-Hawk, a US-made MAV (Micro Air Vehicle) commonly used to search for roadside bombs in Iraq, made its Japanese debut last week when it photographed the nuclear plant from above, providing a detailed look at the interior damage a month after iRobot's visit. Small enough to fit in a (rather large) backpack, officially the T-Hawk is named for the tarantula hawk wasp species, but could just as easily have been named for the T. Hawk Street Fighter character, who also swoops in to attack his opponents from above. As expected, things look pretty nasty at ground zero, so head past the break for a video of the damage.
PARITy differential keeps your MAV flying level even if you clip its wings
Ever wonder how the single driveshaft in your car manages to power two (or more) wheels simultaneously? The answer is the differential, a device capable of splitting torque dynamically. There are a variety of different types of diffs, from fully unlocked to more pricey limited-slip models, but none are quite like the one created by Harvard graduate student Pratheev S. Sreetharan and professor Robert J. Wood. Dubbed the PARITy (Passive Aeromechanical Regulation of Imbalanced Torques), it's only five millimeters long and, while such a tiny thing would evaporate if mounted between the rear wheels on a Mustang GT, it's destined for rather smaller applications: tiny, winged micro air vehicles. The scientists proved its effectiveness by clipping one wing on a PARITy-equipped drone and, despite the imbalance in lift surface, the robo-bee maintained level flight -- differential automatically flapping the tinier wing more quickly to compensate. You know what that means: keeping our robot overlord's spies grounded just got a little bit harder. %Gallery-101468%
Mothers Against Violence discuss GTA, emphasize parental responsibility, on BBC
During a BBC Radio Leeds discussion on violent video games earlier today, a spokesperson for Mothers Against Violence urged parents to take responsibility for their children rather than blame the games themselves. "I'm not directly blaming games, I'm blaming parents. If someone doesn't do something, where does it stop?" Eurogamer transcribed pieces of the discussion, which range from the relatively mild, positive quote above, to the misinformed ("Why is it okay to beat up a prostitute, but not okay to pick up a normal civilian?" -- regarding the Grand Theft Auto series), and even to the legalese ("[Rockstar Games] submits every game to the appropriate ratings body. [GTA is] 18-rated and is entertainment clearly aimed at an adult audience." -- Rockstar's response). The MAV spokesperson reiterated that, while she worries about the effect violent games have on children, the onus is on parents to "study what games are all about." We're just gonna put this out there -- hear, hear!
NSF awards Harvard $10 million for robot bees (video)
When we heard that the National Science Foundation awarded $10 million to Harvard to make a swarm of robot bees, our first thought was: "We could do it for half the price." Then we remembered that the university has been down this path before, including its robot fly program (whatever happened to that thing?) and might be the better choice after all. What does the NSF and Harvard hope to get for all that time and money? Aside from insight into such areas as distributed intelligence, robotic flight, and energy storage, a swarm of these bad boys could be tasked to do anything from battlefield spying to pollination (which might be necessary, with the way that real bees are vanishing at such an alarming rate). The RoboBee project is slated to run for the next five years. Video after the break. [Via Switched]
NC State gurus build remote control bats, freak out Dukies and Tar Holes
Micro-aerial vehicles, or MAVs as they're called in the elusive underground, are far from new, but a team from NC State University is hoping to advance the field with an all new critter. The Robo-Bat is a remote controlled creature that relies on a super elastic shape-memory metal alloy for the joints, which is said to provide a full range of motion while enabling it to "always return to its original position -- a function performed by many tiny bones, cartilage and tendons in real bats." The crew is also utilizing other "smart materials" in the muscular system, giving it the ability to react in real time to environmental changes such as sudden wind gusts. Ideally, this bionic chiropteran would be used to chivvy those who dare step foot on Franklin Street or inside Cameron Indoor Stadium, but in less malicious situations, it could help well-meaning scientists get the bottom of that whole "aerodynamics" thing.
ExoFly: Mars' first tourguide
You know those insect-like micro air vehicles (MAV) we've been seeing? Well, the ExoFly aerobot is based on that camera-equipped DelFly design, only this time it's gearing up for a trip to Mars -- maybe even Titan or Venus. Turns out flapping-wing flight is perfect for the low-density Martian atmosphere. The current prototype -- weighing 17g with a wingspan of 350mm and flight time of twelve minutes -- is being tweaked for use in future missions to Mars. The folks at Delft University of Technology and Wageningen University, who've teamed up with Ursa Minor Space & Navigation, plan on increasing the weight to 20g and adding an on-board solar cell, which they reckon should extend the flight distance to 15km. There's also talk of using the digital terrain and image data gathered to simulate a 3D immersive environment for detailed analysis of extraterrestrial destinations -- hopefully viewable by those of us who don't have the billions to drop on a flight to Mars.[Via New Scientist Space]
Engineer aims to create plasma-powered micro air vehicle
Watch out, battery-powered MAVs -- your viability could be seriously in danger. Based on a patent application from University of Florida aerospace engineer Subrata Roy, he's reckoning that a micro air vehicle could be propelled by plasma. Scientists have known that passing a current or magnetic field through a conducting fluid generates a force, but exploiting it for use in moving an aircraft has proven futile thus far. The phenomenon, simply known as magnetohydrodynamics, has typically been tested on larger crafts, but Mr. Roy's invention would boast a wingspan of less than 15-centimeters and resemble a flying saucer more so than a 747. Of course, this fantastic idea has yet to become much more than just that, but for armed forces and entities obsessed with surveillance, this could undoubtedly be big.
Harvard University's robotic fly takes flight
In a move sure to enkindle flying robotic creatures everywhere, a new species is finally ready to join the gang, as a "life-size, robotic fly has taken flight at Harvard University." The diminutive creation weighs just 60-milligrams, sports a three-centimeter wingspan, and has been developed to boast movements "modeled on those of a real fly." Notably, this isn't the first time we've seen researchers rely on the works of nature in order to craft their own mechanical beings, and given the fly's innate ability to be an excellent spy or chemical detection agent, it's no shock to hear that DARPA is reportedly sponsoring the endeavor. As expected, taking flight was simply the first step in a long line of improvements to come, as the man behind the machine is now looking to integrate an onboard battery and create a flight controller so that the robot can move in different directions.
