> *What we need, and will probably get soon, is inertial guidance based on laser... | Hacker News

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TeMPOraL on July 26, 2018 | parent | context | favorite | on: The World Economy Runs on GPS. It Needs a Backup P...

> What we need, and will probably get soon, is inertial guidance based on laser ring or fibre optic gyros in mobiles.

Isn't this precisely how accelerometers/gyros in mobiles work?

05 on July 26, 2018 [–]

https://en.wikipedia.org/wiki/Microelectromechanical_systems

TeMPOraL on July 26, 2018 | [–]

Thanks! I didn't know about those.

For some reason I was convinced phone gyros use light interference in a spiral of optic fiber. Probably because I read about that design when I was looking how solid-state gyros in RC models work.

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