If you've got the time, we've got the riddle. And it's time for a riddle about time: How many numbers are on a clock? It begins with the simplest of questions that, nevertheless, has no simple answer.

Here is a fun clock that would look great in your geeky apartment, the Peek Clock. The Peek Clock features a black clock face, where the numbers fade into the background, and it highlights the time by ...

Set the seemingly useless slab of wood upon your chosen surface, and with a wave of your hand the sensor brings this device to life. Numbers and symbols appear from beneath the wooden surface. On the ...