Steve Spangler's first appearance on the Ellen DeGeneres Show. Featured science demos: Reverse Helium (SF6), Elephant's Toothpaste, Trash Can Smoke Rings. I have never seen the 'reverse helium voice' trick... continue reading
posted by mintbbb 1 decade 6 years 5 months 1 week ago • 5,575 viewsScience Stuff
Created: 1 decade 6 years 5 months ago
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Updated: 1 decade 3 years 5 months 3 weeks ago
Views: 2,103