Question

the global positioning system (gps) uses electromagnetic waves sent between computer devices on earth and satellites in space to automatically determine the exact position of the computer device on earth. in order to create this technology, engineers had to apply einsteins theory of relativity, which explains how electromagnetic waves change direction in space. during which stage of developing the global positioning system did engineers first apply the theory of relativity to design the product? first second third fourth

Explanation:

When developing a technology like GPS, applying fundamental theories (here, Einstein's theory of relativity) occurs at the initial design stage. This is the first step in creating the product as it forms the theoretical basis for how the technology will function.

Answer:

first