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Not necessarily. It can also be done with buoyancy. A hot air balloon just before it takes off is effectively "balanced" on its basket and does so because the b
by mnw21cam 3y ago
Not necessarily. It can also be done with buoyancy. A hot air balloon just before it takes off is effectively "balanced" on its basket and does so because the bit at the top is positively buoyant. You can also get toys that stand up on the bottom of a swimming pool using the same principle.
- jacquesm 3y agoThe challenge was: > I wonder if it’s even possible to build a non mechanical cube that could balance on its point I don't think a hot air balloon fits the bill there, nor does submerging it in a convenient body of water.
- mnw21cam 3y agoYou could certainly build an ultralight cube with a very small weight in one corner and a helium balloon in the opposite corner, and get it to stand up on its point, at least until the helium leaks out.