The latest in push button warfare, hypersonic weapons have launched a new arms race among the big powers—emphasis on the race.
The circuit is so arranged that the bell at one end is controlled by the push button at the other end.
Each flare was controlled by a push button in the pilot's cockpit.
Next to the engine speed regulating levers is placed a push button cut-out switch to cut out the ignition and stop the motor.
That is, the pressure on the push button permits current to flow to the bell.
That's the elevator that uses the push button; is that right?
The other wire goes through a key, which, like a push button or a switch, serves to open or close the circuit.
Suddenly his old hand shot out and pressed the push button on his desk, and his stenographer answered.
It was necessary to have a card permanently posted over the push button saying, "If the bell does not ring, knock."
He sprang to the push button and almost instantly the cage dropped back to the third level again.