In reality, and even in the movie 'The Day the Earth Stood Still', the Earth has never stood still.
It is still just a helicopter regardless of number of blades.
The helicopter is still used today for military purposes such as delivering aid to countries and for news and traffic reports.
Yes.
The inventor of the Huey helicopter is Connor Lucas, who first introduced the idea to Bell Helicopter company; a company of which still is very prosperous today.
Yes they are still being used but they are not popular. That answer is true for military airplanes but for civilian airplanes propeller driven airplanes are the MOST flown and more of them are being manufactured than jet planes.
When a helicopter is hovering (aka "still") it has the force of gravity pushing "down" toward the Earth and the force of "lift" of the spinning rotor blade(s) pushing against the surrounding air. When the gravitational force is equal to the force of lift the helicopter hovers on the vertical axis.
Stand Still was created in 1991.
It has another rotor on the tail that spins vertically and counteracts the effects of the rotor on the top. Still, a helicopter is difficult to keep balanced and helicopter pilots are very talented people!
yes they still stand.
yes, they will be needed even more
Can't Stand Still was created in 2000.