Why is time "relative"? How do we explain the twin paradox? Why does a clock inside an airplane seem to tick slower? All these answers in 11 minutes!
0:00 - Introduction
1:40 - Analogy of the meadow
4:22 - Relativity
9:10 - Conclusion
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Alessandro Roussel,
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To learn more :
https://en.wikipedia.org/wiki/Time_dilation
https://en.wikipedia.org/wiki/Hafele%E2%80%93Keating_experiment
https://en.wikipedia.org/wiki/Twin_paradox