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 Rotodyne might have looked like part helicopter, part plane, but it was actually neither. Where a helicopter uses engine power to spin a rotor blade to force air down and create lift, on a ...

For conventional vertical takeoff and landing rotors on vertical shafts are the most common solution, as seen in helicopters and multirotors. A much less popular solution is the cyclocopter, which ...

Ordinarily on a helicopter, the main (top) rotor is mechanically linked to the tail rotor, so the spinning of the former causes the latter to do likewise. An experimental new system replaces the tail ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. As Uber sees it, someday we might cruise around cities in small ...

What’s your secret evil plan? Are you looking for world domination by building a machine that can truly replicate itself? Or are you just tired of winding motor rotors and other coils by hand? Either ...

The helicopter used to be the airplane’s eccentric poor relation. It could do a few odd jobs (sea rescues, short-range shuttling), but its high cost and its lack of range and speed weighed heavily ...

NASA has delayed the first flight of its Ingenuity Mars helicopter after a crucial test-spin of the drone's rotor blades abruptly stopped. This was the last major test to make sure the helicopter ...