A hands-free umbrella, parachutes for aeroplanes and other quirky inventions went on display this week at the opening of the world’s biggest fair for new gadgets.
Even the ribbon-cutting was done by a humanoid robot.
A thousand inventions all had their debut in Geneva, Switzerland, including a robotic claw hand, a high-tech screen to play simulated golf and a ball designed to protect its user from electromagnetic waves generated by wi-fi and other household devices.
Television, radio and microwaves all use electromagnetic waves that vary according to wavelength, energy and frequency.
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