1.8 microseconds: The amount of time per day you're never getting back
According to Space.com, the massive 8.9-magnitude earthquake off the eastern coast of Japan was so big, it altered the earth's rotation. NASA geophysicist Richard Gross says the tremor accelerated the earth's spin, shortening its 24-hour day by 1.8 microseconds. And that seems like a permanent thing.
Space.com says the scenario is "similar to that of a figure skater drawing her arms inward during a spin to turn faster on the ice" -- which doesn't help us understand it at all. But at least know we know that the earth is a lady.