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How to think about gravity - Jon Bergmann

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The physics of the universe

Let’s Begin…

Did you know that when you fall down, the earth falls up to meet you? Explore the counterintuitive equation that describes gravity.

WatchThink Dig Deeper
When you drop a rock from a cliff, which of the following happens?
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About Space Ed

Space Ed helps you untangle the mysteries of space with the universe’s best videos on everything from Einstein's theory of relativity to what it would take to live on Mars. Brush up on the science, philosophy and mystery of space, because the fabric of the universe is the same fabric that connects us all.

Meet The Creators

  • Animator Franz Palomares
  • Narrator Jon Bergmann
  • Artist Alan Foreman, Celeste Lai
  • Producer TED-Ed
  • Director Biljana Labović

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Get a certificate for completing any 30 lessons. Here's how:

  1. Make sure you are signed into your Space Ed account. Register if you don't already have an account.
  2. To complete a lesson, WATCH the video and finish all the questions in the THINK section.
  3. Complete any 30 lessons - you'll get a green checkmark on each lesson you complete.

That's it! You will get your certificate in an email.