The World's First True Atomic Wristwatch - The Cesium 133 by John Patterson PhD - Bathys Hawaii — Kickstarter
How is it that not one of my three atomic clocks change to the correct time with a time change? - Quora
![The World's First True Atomic Wristwatch - The Cesium 133 by John Patterson PhD - Bathys Hawaii — Kickstarter The World's First True Atomic Wristwatch - The Cesium 133 by John Patterson PhD - Bathys Hawaii — Kickstarter](https://ksr-ugc.imgix.net/assets/005/138/361/db0a611e0c35c012c69474194857dc90_original.jpg?ixlib=rb-4.1.0&w=700&fit=max&v=1451687914&auto=format&frame=1&q=92&s=15dced67421e4fd63443feee9d8a4e6f)
The World's First True Atomic Wristwatch - The Cesium 133 by John Patterson PhD - Bathys Hawaii — Kickstarter
![TIL an Institute in Colorado created a clock so accurate it won't lose/gain a second in 20 million years. This is the clock used for internet time! : r/todayilearned TIL an Institute in Colorado created a clock so accurate it won't lose/gain a second in 20 million years. This is the clock used for internet time! : r/todayilearned](https://external-preview.redd.it/g7QwxOjPxlzFhQJzKNL4A0rByDOu3SgBxpaofcP-0Mc.jpg?auto=webp&s=0223bf5ddb7ba09f6dcf94bf1f4653a73e976eb3)