The cat launch... you have to see it (and feel it)! Especially from deck level near one of the four steam catapults of an American super carrier. The steam pressure builds up and pushes an average aircraft in just two seconds from 0 mph to some 150 mph (240 km/u) in 310 feet (94 m) with up to 3.5g's (recalculating this acceleration compared to an average car, that would be something as an acceleration from 0 mph to 60 mph (100km/u) in 0,8 sec!