Starting this Friday, disabled and elderly people in Japan will be able to rent a robotic suit to help them become more mobile. Available in a two-leg (for a $2200-per-month rental fee) or one-leg version ($1500/month), the suit -- called HAL, for Hybrid Assistive Limb -- reads brain signals and directs leg movement.

Yoshiyuki Sankai, the creator of the robot suit, is a professor at the University of Tsukuba and the CEO of Cyberdyne, which is manufacturing and renting the suits.

Werner O. Merlo’s patio umbrella refused to stay locked in a tilted position. Frustrated, he replaced the sagging sunshade’s flimsy ball-and-joint with a self-designed mechanism that swiveled smoothly yet held fast at an angle. His umbrella never flopped over again. "I'm not really the umbrella-manufacturing type, so the first thing that came to mind was, What else can I use this for?" says Merlo, a former chemist at the University of Alberta.