3 ms·

There are now chip-scale atomic clocks: http://www.microsemi.com/products/timing-synchronization-systems/embedded-timing-solutions/components/sa-45s-chip-scale-

There are now chip-scale atomic clocks: http://www.microsemi.com/products/timing-synchronization-systems/embedded-timing-solutions/components/sa-45s-chip-scale-atomic-clock http://www.microsemi.com/products/timing-synchronization-sys... You probably can't afford them to do a science experiment with your kids. Hopefully they'll start putting them in everything so hobbyists can pull them out of eBay finds, like they currently do with time references from cellular base stations.

kaolinite 11y ago
Yep, and they're making their way into wrist and pocket watches too. http://www.hoptroff.com/collections/atomic-timepieces http://www.hoptroff.com/collections/atomic-timepieces https://www.kickstarter.com/projects/846511652/the-worlds-first-true-atomic-wristwatch-the-cesium https://www.kickstarter.com/projects/846511652/the-worlds-fi...