What does a black hole look like? Which optical effects appear in its surroundings? What do we see when we cross its horizon? All these answers in 15 minutes!

0:00 - Introduction
1:53 - Before the fall
5:17 - Falling through the disc
8:26 - Crossing the horizon
12:42 - Conclusion

This video is narrated by Octave Masson.
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Alessandro Roussel,
For more info: http://www.alessandroroussel.com/en

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