Special Relativity — Time Stretches
Einstein's Theory of Relativity — Without the Formulas
Special relativity: time dilation, length contraction, twin paradox. GPS satellites lose −7 μs/day due to speed.
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Learning Material
7 pagesLesson 4 — Special Relativity: Time Stretches
Understanding the Complex: Einstein's Theory of Relativity — Without the Formulas
The anchor example:
GPS satellites move at ~8,700 mph relative to Earth's surface. Their onboard atomic clocks lose ~7 microseconds per day compared to clocks on the ground.
That's the fact. This lesson explains why it's true.