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Scientists from the University of Colorado Boulder have created an atomic clock using lasers and strontium atoms that’s incredibly accurate—only losing one second every 40 billion years.

Here’s how it goes: “How many numbers are on a clock?” That’s it. That’s the whole thing. All that’s left is to do the math. When we said it was simple, we weren’t kidding.

Learn Geometry Nodes by examples. In this tutorial we use the Math, Transform, Value.. nodes to duplicate, calculate and control the rotation speed of the clock hands. You can follow the videos in ...

including shaking your phone or having to correctly solve a math question. Aside from that, it’s just a very good, customizable alarm clock app. You can get it to stir you from your slumber ...