the.com/rotor
the spinning heart of every machine that bites the sky and refuses to fall.
means The rotating part of a machine—especially the spinning blade assembly that lifts a helicopter or the turning component inside a motor, turbine, or generator.
from A 20th-century shortening of "rotator," itself from the Latin "rotare," "to turn," which springs from "rota," a wheel. So buried in every rotor is an ancient wheel, just spinning fast enough now to leave the ground.
blade tipshelicopter rotor tips approach the speed of sound
wankel engineuses a triangular rotor instead of pistons
autorotationlets a powerless helicopter glide safely down
name originshortened from rotator, the thing that turns
turbine dutyrotors in jet engines survive thousands of degrees