Leap Seconds

This is a very interesting article to read. It's about how the Earth's rotation doesn't follow the ticks on a clock. Now you say "I already know that", but did you know that now and then (more like every 5-10 years or so), the Earth's rotation speeds up and slows down? A-HA! This article is about "leap seconds", time added to clocks to "keep things in synchronized". Read about it: Interesting Thing of the Day: Leap Seconds