Looking at the Moon and Mars

Simon is interested in space again, since he has gravitated towards Physics and has been learning a lot of astrophysucal concepts. We had times when he didn’t bother to join the night sky observations but now he is enthusiastic again and keeps spitting out the facts about the Moon that fascinate him.

When we got home tonight, he initiated a demo (involving a blanket and balls of different mass) to show me how the balls (symbolizing a planet and its moon) fall towards each other on a blanket (spacetime) stretched over a large chest, but don’t collide if the smaller ball is set in fast motion.

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