Gravitational Attraction Simply Explained Using a Sheet of Graph Paper Attached to a Crank

“How Gravity Falls” by YouTube host Edward Current is a handy explanation of how a warping of space and time causes gravitational attraction that utilizes a sheet of graph paper stretched using an attached crank. Current built the “Spacetime Stretcher” to offer an easy-to-follow explanation of Einstein’s general theory of relativity.

For centuries, gravity was described as a sort of attraction between two objects. Then Albert Einstein described gravity as a warping of space and time.

via 22 Words

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