...theory of relativity? a. According to someone far above the Earth's surface, clocks on the surface will appear to run slower.
b. A binary star system with two stars orbiting each other rapidly emits gravitational waves.
c. The curvature of spacetime can distort the...
a. No material object sent outward from Earth can reach or exceed the speed of light.
b. Observers in different reference frames will always see their own lengths and masses as "normal", and see their own clocks running normally.
Observers in different reference frames may disagree...