Quote Originally Posted by LuckY
Something to ponder: if you jetted around the earth in circles at the same speed the earth spins then landed at the same point, will you have travelled through time?
How did you arrive at that conclusion? The earth doesn't travel fast enough for that, unless we're talking an EXTREMELY small scale. If that's the case, then geosynchronous satellites are time machines. Also, we travel through time just by walking, since we are moving faster that the earth is rotating at that point.