substratosphere

The screen is a 360-degree ring on which 18 slide projectors, positioned on a suspended central bollard, throw up a sequence of more than 1,400 scenes that envelop you in the hipster substratosphere of ’60s Tokyo.

Major Thomas Ferebee pressed the toggle and the single bomb was away, down through the substratosphere.

We came down to the warmer substratosphere and got on our homeward course.

It was also the 50th anniversary of man's first powered flight, and it was celebrated by two Americans, first Scott Crossfield, flying at 1,327 m.p.h., then the Air Force's Major "Chuck" Yeager, ripping through the substratosphere at more than 1,600 m.p.h.,

Furthermore, with horsepower supercharged to normal and air resistance halved or quartered, flying speeds in the substratosphere are increased 25% and more.