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7 amazing human-powered gadgets
By Cat DiStasio Electricity runs the world we live in -- but we often overlook the fact that our own bodies generate quite a bit of energy just by doing what we do. This has led engineers and designers to create a wide array of human-powered gadgets that are as creative as they are fascinating. Many are developed as a response to needs in developing nations, where the grid is unreliable or expensive, but others come about purely as convenient answers to First World predicaments. You'll be amazed to learn what the human body can do, whether it's generating electricity for light simply by grabbing hold of a flashlight or making a sweet winter beanie while kicking back with a good book.
Insert Coin: Atlas human-powered helicopter gunning for elusive Sikorsky prize (video)
In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you'd like to pitch a project, please send us a tip with "Insert Coin" as the subject line. The AeroVelo group, a team of students and professional engineers, wants its Atlas helicopter to hover for one minute, reaching at least three meters (10 feet) powered by human muscle alone. If the grunt-powered machine succeeds, it'll nab the American Helicopter Society International's $250,000 Sikorsky Prize, which has gone unclaimed since it launched in 1980 -- with the best efforts barely leaving the ground. But the University of Toronto-based team reckons it has the chops, with two PhDs aboard and Snowbird, the first successful human-power ornithopter, under its belt. The Atlas will feature four rotors like a 1994 design from Japan, which flew for 19 seconds, a simple and stable configuration that required less pilot power than other models. The would-be flyers have rustled up more than $27k toward the $30k target with 35 hours left, so if you'd like to help out -- and fulfill the dream of eccentric inventors everywhere -- hit the source link for details.
Researchers develop battery boosting Power Felt, encourages you to sit on your phone
For whatever reason, researchers have long been stuck on the idea of harnessing the wasted energy potential of the human body. We've seen our nation's brightest try to siphon power off of our spare body heat, our breath and even our blood -- we haven't been able to cast off our wall chargers just yet, but progress is being made. Today's no-socket wonder comes from Wake Forest University's Center of Nanotechnology and Molecular Materials, and it falls into the body-heat category. Power Felt, a new fabric-like thermoelectric device comprised of layers of carbon nanotubes and flexible plastic fibers, can create an electrical charge from temperature differences. The Power Felt's layered nanotubes allow it to generate more electricity than standalone carbon nanotube / polymer composite films and, according to researchers, could add only $1 to the cost of a charging cell phone cover. "Imagine it in an emergency kit, wrapped around a flashlight, powering a weather radio, charging a prepaid cell phone," said project head David Carroll, "Literally, just by sitting on your phone, Power Felt could provide relief during power outages or accidents." The thermoelectric technology still has a long way to go before it's ready for the market, however, leaving the US military's technology savvy tailors hanging off the edge of their seats.
Snowbird ornithopter sets record for human-powered flight (video)
In August this year, a Canadian engineering student achieved a first -- in fact, one of the last firsts in aviation. A human powered ornithopter (a craft that flies by flapping its wings) flew for 19.3 seconds, traveling some 475 feet at an average speed of 15.9 miles an hour. Built by University of Toronto grad students Todd Reichert and Cameron Robertson, the project required that the pilot (Reichert) lose 17 pounds, maintain a special diet, and train daily. Named Snowbird, the craft weighs under 95 pounds and has a wingspan of some 105 -- comparable to a Boeing 737. It was towed aloft by a car, after which the pilot pumped a set of pedals with his feet, which caused the wings to flap. Unlike previous attempts in the past, the Canadian group was able to provide telemetry data to prove that the craft flew under its own power. On confirmation by the Federation Aeronautique Internationale, the craft is set to receive the award for the longest sustained flight by a human-powered ornithopter. Video after the break.
Easy Energy Yogen Max foldable, man-powered laptop charger prototype complete
Charging your laptop could start to feel a lot more like work in the near future, if the folks at Easy Energy have it their way. They've just completed a protoype for the Yogen Max laptop charger, and though details are particularly spartan about the actual workings of the device, as you can see from the mock-up, it's going to involve a human foot pumping juice directly into your laptop. Unlike some other devices we've seen, the Yogen Max has no external battery, plus it's way more foldable and boasts a totally awesome font. The spokesperson from Easy Energy says they hope to bring the product to the consumer market sometime in 2009. If that girl in the background of the photo is any indication of how outlandishly fun the human-powered charger is to use, we sure hope it's available soon.[Via Coolest Gadgets, thanks Ink Master]
