Physicists Used Atomic Clocks to Test Einstein’s Theory of Relativity in a 14-Year Experiment
A foundational thought experiment in Einstein’s theory of general relativity just got its most precise confirmation ever by turning the entire Earth into a laboratory.
Watch The Mechanics Behind Time Travel
The effects of time dilation on various spacecraft is visualized in Chomko & Rosier's 'Relative Clocks.'
The Careful Art of Watching Time Slow Down
Researchers again demonstrate the constancy of light-speed, and the flexibility of time.