I need to make a Rube Goldberg Machine and it must demonstrate projectile motion, conservation of energy and conservation momentum, any idea on what to make and how to make it? Help please

Answer 1

I have a rare it looks like the zeppelins the shape frame work construction airship nose cone of the Hindenburg zeppelins shape skeleton flying / and everything moves when you plug it in. My husband bought it 40 years ago.