How Scientists Can Slow Down Time

If the prospect of old age frightens you, then maybe you should consider piloting aircraft for a living. The connection might not seem so obvious at first, but according to the principle of time dilation, the faster you move, the slower the experience of time relative to your unmoving counterparts. And relative to people on the ground, people flying on airplanes move much faster and must experience the passage of time more slowly. In the ‘70s, this theory was tested using clocks on aircraft, and more recently a German study was able to replicate the experience of time dilation in a lab. Maybe pilots don’t actually stave off old age for good, but the physics behind the principle are nevertheless important to make sure that technologies like GPS satellites work properly.

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