Hypersonic drones, like the drones before them, are the latest innovation in push-button warfare.
Mr. Garwell touched a push-button on his desk, and a clerk appeared.
Give the location of the electric bell, the electric generator and the push-button.
The push-button was kept busy until the steward in charge of that department gave signs of exhaustion.
"Just you wait until I call the porter," said Roger, and touched the push-button.
He sighed resignedly and pressed the push-button on his desk.
"I see you have," Cappy cut in blandly, and pressed the push-button on his desk.
Going to the push-button in the wall she snapped on the light; Alice jumped at its suddenness.
On the front door of the jail was a push-button that connected by a wire with a gong within the building.
A second dim light was burning here, just enabling him to see the push-button.