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0 pointsjevinskie9y ago0 comments

If anyone is wondering: yes, you can own your very own atomic clock for a "reasonable" price! I encourage everyone to read [0] where a father takes his kids and a few atomic clocks up a mountain and back down. By looking at the clock drift due to changes in gravity, he was able to observe relativity!

[0]: http://leapsecond.com/great2005/

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privong9y ago

> If anyone is wondering: yes, you can own your very own atomic clock for a "reasonable" price!

Just to clarify, the clocks used to demonstrate gravitational time dilation were on the order of $10,000 (or more, e.g., [0]). But one can find rubidium standards online for a few hundred dollars.

[0] http://www.ebay.com/itm/HP-5061B-Cesium-Beam-Frequency-Stand...

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privong9y ago

> If anyone is wondering: yes, you can own your very own atomic clock for a "reasonable" price!

Just to clarify, the clocks used to demonstrate gravitational time dilation were on the order of $10,000 (or more, e.g., [0]). But one can find rubidium standards online for a few hundred dollars.

[0] http://www.ebay.com/itm/HP-5061B-Cesium-Beam-Frequency-Stand...

j / k navigate · click thread line to collapse