Bedol’s water clock is powered by ordinary water.
Business Day Personal Tech
Pogue’s Posts
The latest in technology from the Times’s David Pogue, with a new look.
BEDOL WATER CLOCK ($19). These bedside alarm clocks (various colors and styles) are cheap, insubstantial, mass-produced and basic. They’re impressive, though, because of their power source: water.
No battery, no power cord. Each is a plastic reservoir with a big, clear LCD display on the front. Every few weeks, you pour in ordinary water. A tiny submerged panel creates a galvanic-battery effect, producing just enough electricity to power the clock.
Don’t count on seeing water-powered laptops, refrigerators and cars any time soon. But on its own small scale, the water clock is a marvel.
