From: Einstein's Special Theory of Relativity: The Two Big Ideas That Changed Physics
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Why do engineers need to use Einstein’s theory when building GPS satellites?

Satellites move fast and are farther from Earth's gravity, so their clocks tick differently. Without corrections from relativity, GPS would give wrong locations.

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Look up how GPS works and see how physics affects everyday tech.

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4 evidence blocks4 perspectives4 visualizations10 media resources8 rabbit holes
evidence
The laws of physics are the same in all inertial frames of reference.
evidence
Time dilation occurs for objects moving close to the speed of light.
evidence
The speed of light in vacuum is constant and independent of the motion of the source or the obser...
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Einstein's Special Theory of Relativity: The Two Big Ideas That Changed Physics
Evidence, perspectives, rabbit holes, and more