it makes it possible by nothing!
Friction lets the drive wheel push you forward, and allows your brakes some bite. Friction make it possible to hold on to the bars. Friction lets you steer.
Space travel.
Motion can never stop friction since friction is the resistance of the medium object travel in.
electronic rockets
So far, time travel has not been achieved - not with a watch, not with any other device. It seems somewhat doubtful that it ever will be possible.
He needs to not move his hands unless needed
Make surface as smooth as possible so you would have less sliding friction
In the bearings, where you want as little friction as possible.
Some theories suggest it may be possible, others deny it.
heat
Friction can make object no.
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