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 For more videos, subscribe to the YouTube channel : https://www.youtube.com/ScienceClicEN And if you liked this video, you can share it on social networks ! To support me on Patreon : http://www.patreon.com/ScienceClic or on Tipeee : http://tipeee.com/ScienceClic Facebook Page : http://facebook.com/ScienceClic Twitter : http://twitter.com/ScienceClic Instagram : http://instagram.com/ScienceClic Alessandro Roussel, For more info: http://www.alessandroroussel.com/en _ 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