Factoid of the day:

There is a peculiar lamp which turns itself on for one hour, then turns itself off for half an hour, then on again for 1/4 hour, off again for 1/8 hour, on for 1/16 hour, and so on until the time is exactly two hours since it began. English philosopher James Thompson owns this lamp; no one, not even himself, knows whether the lamp is on or off after 2 hours.
posted by 123454321 at 8:30 AM