For every force there must be a counterforce! For every action there must be an equal and opposite reaction! That is a fundamental law. It must apply to gravity as much as to anything. And, by Jove, if it can be found, I'm going to discover that countergravity—and apply it!
He knew lore of all ages, secrets of fire and light, gravity and counter-gravity, the knowledge of superpsychic numeration, metathasm, corolopsis.
I've solved their secret. My idea is based on the principle that lets them fly. Electromagnetism. Utilization of the force of gravity. Or its opposite: counter-gravity.
We have no intention of crashing into the city…That would do comparatively little damage. We will apply countergravity. The ship will stop, but the city will disappear.
A green light on the steering console came to life and scanned her eyes. Then the sled rose on a platform of countergravity.
any evidence 1937
We would like to see additional later cites from other authors.
Last modified 2021-02-02 10:12:24
In the compilation of some entries, HDSF has drawn extensively on corresponding entries in OED.