The Kabit, while comparatively close, was just barely visible; her bulk was so small that it only faintly activated the super-radio reflex plates upon the ship's hull.
"The Terror from the Depths"
Sewell Peaslee Wright
The unused, unrecognized prime center, true seat of the intellect, must be activated the way nature presumably had intended that it should be, had not something gone wrong in the dawn years of the planet.
"The Short Life"
Francis Donovan
With its foot Hanlon made the bird throw the little switch that activated the writing mechanism, and then with its beak began pecking at the keys.
"Man of Many Minds"
E. Everett Evans