Carry these as fun give-aways when you strike up conversations with the young and young at heart.
MAKE … metal ring / 2′ chain / chain connector
PROBLEM … Drop ring down chain and make it catch.
SOLVE … Brainstorm and test.
MAGIC … Discrepant Events which defy our understanding of the world by presenting unexpected outcomes. These phenomena are often used in science demonstrations to grab our attention.
SCIENCE … Ring rotates and causes chain to flip up and knot itself on the ring. This is a combination of gravity, angular momentum, and friction. Newton’s Third Law states that for every action (force) in nature there is an equal and opposite reaction. If object A (ring) exerts a force on object B (chain), object B also exerts an equal and opposite force on object A. In other words, forces result from interactions.