Escape Velocity
Arrr, me hearties! Gather round and listen close as I spin ye a yarn about the mighty concept o' escape velocity! Now, ye see, escape velocity be a grand notion borrowed from the realm o' the stars and the astronomers. It be the speed a sturdy vessel, must attain to break free from the clutches o' gravity and soar into the boundless expanse o' the cosmos! Or to give an exact quote from them that study space: