Arcot alone could know the enormous gravitation, and his accelerometer told him now that he was subject to a gravitational acceleration of three thousand four hundred and eighty-seven feet per second, or almost exactly one hundred and nine times Earth's pull.
"Invaders from the Infinite"
John Wood Campbell
Steve Strong and Kit Barnard sat in the pilot and copilot's chairs on the control deck of the Polaris and watched the needle of the accelerometer climb as Astro poured on the power in answer to Walters' command.
"Treachery in Outer Space"
Carey Rockwell and Louis Glanzman