How Your Smartphone Knows Where You Are

Quantum physics, Einstein’s theory of relativity and atomic clocks that are accurate to one billionth of a second -- all of these are crucial in allowing your smartphone to pinpoint your precise location almost anywhere on Earth. It's called the Global Positioning System, or GPS.
The GPS receiver in your smartphone uses trilateration - a more complex version of triangulation - to determine its position on Earth. In drawings, trilateration is often illustrated in 2-D using circles. But since GPS deals with satellites and Earth in the real 3-D world, spheres are a better representation of what’s actually happening.
The Cold War. Sputnik. Learn about the origins of GPS at KQED:
ww2.kqed.org/quest/2015/11/16/...

[@robertrumfelt7843]

Superbly done!

[@makesaveinvest1401]

Good video!! Helpful!!🙌

[@Smilthy]

Thank you fellow humans for GPS ❤ It has been truly life changing for me!

[@adamhughes9938]

I doubt the GPS drift is caused by issues in the satellite or weather as much as occlusions like being behind a building.

[@AliTheExtreme2012]

I’m sorry I’m using this for my vid is it k

[@eddievenuto1862]

It's a radio that send waves to gps that allow me to use it

[@mollymurphy999]

Nowhere to hide

[@user-nj4pr1rj6q]

lay

[@outoftime7740]

I cant believe you people buy this crap.

[@miss.jaxsun]

fart