The return of an electron beam to its starting point in a cathode ray tube, or the return stroke in mechanical devices.
From 'fly' + 'back' (Old English 'bæc'). Technical term created in the early 20th century for vacuum tube technology and electronics.
In old television screens, the flyback was the invisible reset moment—trillions of electrons zooming back hundreds of times per second to paint the picture again and again.
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