Check out David Blaine's video with Physics Girl's Dianna Cowern:    • PhysicsGirl schools me on the science...  
ASCENSION full Livestream:
   • David Blaine Ascension  

David Blaine casually floated up to 25,000ft over the Arizona desert holding 52 helium balloons. I was invited to witness the testing and preparation!

Thanks to David Blaine, Luke Aikins, and the rest of the team for having us and for taking such good health and safety precautions!
Thanks to Kyle Kitzmiller.

http://physicsgirl.org/
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Creator/Host: Dianna Cowern
Editor: Levi Butner
Production Assistant: Kyle Kitzmiller
Research: Sophia Chen
Research: Hope Butner
Research: Patrick Muhlberger

Sources:
Victorians who flew as high as jets:
https://www.bbc.com/future/article/20...
FAA Info on Decompression Sickness
https://www.faa.gov/pilots/safety/pil...
Cerebral Hypoxia Information
https://www.ninds.nih.gov/Disorders/A...