Learn about Gravity
Learn more about general relativity, Isaac Newton and Albert Einstein with this fascinating gravity video. As the story goes, back in 1665 Isaac Newton observed an apple fall from a tree and from there began to understand gravity and how it worked to keep the moon in earth’s orbit as well as keep humans and various other objects attached to the ground. Newton’s theories of gravity were revolutionary at the time but weren’t perfect, it took nearly 250 years before these issues were addressed. Along came Albert Einstein, who realized that there was in essence a universal speed limit, the speed of light. That nothing could go faster than this contradicted Newton’s theories and so evolved Einstein’s theory of general relativity. Check out this amazing gravity video clip and see for yourself how it all works.