human
The mechanism inside the projectile is turned off now, of course, Ruth said.
gpt
If it were turned on, the projectile would have been on its way to the space ship long ago, for the radio waves are as strong here as at the Centaurians' camp.
human
When that is snapped over, it makes the contact that sets the magnetizing mechanism into action, she explained.
gpt
Then the projectile will go hurtling directly for the source of any radio waves within range. I don't know the nature of its mechanism. Uncle merely told me that it is the application of an entirely new principle of electricity.