David Szondy is a freelance writer based in Monroe, Washington. An award-winning playwright, he has contributed to Charged and iQ magazine and is the author of the website Tales of Future Past.
Until now, rehabilitation exoskeletons have generally been one-armed, and haven't been of much help in providing the sort of two-arm training that many patients need to recover coordination for carrying out daily tasks. Researchers at the Cockrell School of Engineering at the University of Texas at Austin have now developed Harmony, a two-armed, robotic exoskeleton that uses mechanical feedback and sensor data to provide therapy to patients with spinal and neurological injuries.
In seeking a compromise between helicopters and fixed-wing aircraft, engineers in recent years have opted for tilt rotors, but NASA has dusted off and improved on a tilt wing aircraft design that takes off and lands like a helicopter and flies like an airplane. Called the Greased Lightning, or GL-10, the unmanned prototype made a successful vertical takeoff and transition to horizontal flight at Fort A.P. Hill, not far from NASA's Langley Research Center in Hampton, Virginia.