Visualizing Time Dilation

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Published 2021-03-23
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,
For more info: www.alessandroroussel.com/en

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To learn more :
en.wikipedia.org/wiki/Time_dilation
en.wikipedia.org/wiki/Hafele%E2%80%93Keating_exper…
en.wikipedia.org/wiki/Twin_paradox

All Comments (21)
  • @Doodle1283
    we live in a wild time where we can watch these amazing animations and see what early modern physicists might have pictured in their brains
  • @SaadAhmed3000
    I must have seen dozens of videos on time dilation, trying to wrap my head around the topic in an intuitive way, but to no avail. Your footstep analogy made it "click" for me in just a few seconds. Amazing work!
  • Cop: “Do you know how fast you’re going?” Einstein: “Speed is relative officer”
  • I don't know if it's the way you explain such complex topics in such simplified ways or the background music (probably both), but I am so absolutely engaged throughout all your videos, it's like this intense focus that doesn't waiver until the very end, something even the best lecturers at university can't do. These topics have fascinated me for like the last 20 years but I always gain new perspectives of things when I watch these. Thank you!
  • @Jyots89
    The way you educate is GOLD.
  • @cheating_lemon
    This is the best freakin channel for understanding crazy topics period
  • @jammandbz
    Been trying to fully grasp this concept for a while now. This definitely has explained it better than any other video I’ve seen.
  • @albertdumont4977
    I am brazillian, my english is not so advanced, but I can understand everything without subtitles thanks for your clear pronunciation. Such a happiness for me to discover this channel, wish you success.
  • @thebrothersdude
    This video will sit at a few million views within a couple of years, nicely done.
  • This is my favorite channel. Unbelievably concise, understandable commentary and visuals for a topic many believe they could never understand.
  • @idempotent2
    This is by far the best illustration of time dilation I have seen.
  • @Tomnedreb
    I work as a science teacher at a local high school and will surely use this as visualization of time dilation. Very intuitive video, and love the narration is perfect. I'm sure this will get millions of views.
  • I don't recall seeing the analogy of the meadow before, but 2:05 is a very good way to introduce relativity of simultaneity. It's a familiar experience to almost anyone, yet segues nicely into the geometric explanation of spacetime. Sucrée. Consider yourself the recipient of a high-five from Hermann Minkowski, which to you just arrived, but from his reference frame was sent in 1909.
  • @jsephhd
    this video actually explained this concept so much better than any other videos
  • @suhaanvyas9639
    This was the best time dilation explanation video I've seen till now. The video and narrative was so good, that it forced me to finish the video first and leave a comment of appreciation. Your hard work truly deserves it. This video explains the concept in a layman's language for anyone to understand, yet keeping all the concepts and its ideologies intact. Kudos to the team/member who made this.
  • @os3ujziC
    The analogy with footsteps is so simple yet absolutely mindblowing.
  • @bme1
    You're a genius in explaining complex physical mysteries in a layman language. Outstanding imagination, great work 👍, I wish you all success and a billion subscribers. Keep up the good work 👍🔥.
  • @ShanXiTV
    I have seen various videos on explaining relativity… this one is the best so far, I can’t say I fully understand it but this one really is on another level! Space time visuals are super helpful!