After offering a look at its vision for flying taxis at last year's CES, Bell has returned to Las Vegas with what it considers a new and improved version. The Nexus 4EX, as the concept is now called, ...

The operation of a contactless electric bell is based on a change in the electrical resistance of a temperature-sensitive element (thermistor) when a finger approaches the bell button or upon contact ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Watch a helicopter fly, and the big spinning top rotor hogs the ...

The latest air-taxi concept seems to be among the most viable, because it comes from one of the world’s leading helicopter manufacturers. In January, at the Consumer Electronics Show in Las Vegas, ...

Bell changed the design of its proposed electric vertical take-off and landing (eVTOL) aircraft, removing two rotor ducts and adding a purely electric propulsion option, after hearing from potential ...