Uploaded June 2019 | Updated September 2026, 1 day ago

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Ultra Foam is only a few times more dense than air itself, so walkalong gliders made from it fly VERY slowly.
Get Ultra Foam gliders here sciencetoymaker.org/airsurf/glider-store
or here if YouTube cuts off the URL bit.ly/2K5gCps
Learn to fly gliders here youtu.be/PPNTlilxGF0
Thanks to Mike Duran for footage of Ben Saks' indoor flight
bit.ly/31g6mQQ