Uploaded April 2017 | Updated September 2026, 2 weeks ago

---

Professor Roger Bowley has some fun with a Dropper Popper.
More videos with Roger from over the years: bit.ly/RogerBowley
Discuss on Brady's subreddit: https://redd.it/63gtqg

Tadashi's Toys (series on Numberphile): bit.ly/tadashi_vids

Visit our website at sixtysymbols.com
We're on Facebook at facebook.com/sixtysymbols
And Twitter at twitter.com/sixtysymbols
This project features scientists from The University of Nottingham
bit.ly/NottsPhysics

Patreon: patreon.com/sixtysymbols

Sixty Symbols videos by Brady Haran
bradyharanblog.com

Email list: eepurl.com/YdjL9