It is well known that a stopped clock gives the exact time twice a day, while a clock that gains or loses time may not be right more than once over a period of months.

My clever father adjusted his clock to give the correct time at least twice a day, while running at the normal rate.

Assuming he was not able to set it perfectly (a reasonable assumption) how did he do it?

I believe the answer to this question is: what is the normal rate of the clock. I'm going to assume that the clock is stopped. This is probably wrong.

Posted by : þ on 2005-12-14 18:04:03