vacuum tube

Making his first bid for political office, Garvey has proven to be as empty as a vacuum tube.

Before silicon, there were vacuum tubes, and before that, there were wires and telegraphs.

However, the quantum noise that lurks inside the vacuum tubes that encase LIGO's laser beams can alter the timing of the photons in the beams by minutely small amounts.

In the last century, our capacity to store and process data has soared, with electronics marching from the vacuum tube to the transistor to today’s semiconductor chips.

Shaughnessy, a 30-year West Seattle resident, says he has in storage 2 million vacuum tubes, the kind used in old radios and amps.