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0 pointsbogomipz4y ago0 comments

One is cesium? Whats the other stuff, way out in space?

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6 comments · 6 top-level

baq4y ago

Galileo sats use these

so, basically magic.

You think that's magic, check out optical lattice clocks. Blows my mind every time I re-read about them and accept "yes, this actually works".

Rubidium. Cesium atomic clocks are more expensive.

GPS

The GPS constellation.

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