The Bad Astronomer writes "On October 26, the International Space Station underwent a reboost, moving it into a higher orbit to compensate for atmospheric drag. During the firing, the astronauts onboard had a little fun with the physics of acceleration. This video is destined to be shown in high school physics classes for years." Link to Original Source
Time-sharing is the junk-mail part of the computer business.
-- H.R.J. Grosch (attributed)