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Cake day: July 30th, 2023

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  • The earth has a lot of angular momentum, in fact the planets combined have more than the sun and planet formation may actually be necessary to “bleed off” angular momentum from protostellar discs for star formation, but I digress. So if you were to aim directly at the sun you’d miss it wildly as the tangential motion of the earth would be added to your motion. Even worse it would miss the sun, go around it, and orbit back to where you came from. A bad thing if you were trying to toss, say, radioactive waste into the sun. To hit the sun you have to bleed off all of that angular momentum by using rockets (very expensive) or do what NASA usually does and use gravity assists swinging by planets to gain or lose energy. The Parker solar probe had to do a bunch of swings past Venus to lose enough angular momentum to get close to the sun.











  • How does this person think guided missiles work? “Well the plane moved so we missed.”

    "Also you can’t catch up to the moon because the moon is traveling faster then our rockets can go "

    1. Not true so discussion over right there
    2. Even if its angular velocity was faster than a rocket its radial velocity is nearly 0 so all you would have to do to intercept it is to lead it. No different than shooting a moving target at long ranges.

    If you really want to confuse most folks tell them why shooting stuff into the sun is actually VERY hard to do.







  • Omg we had a Maine Coon as a pet when I was a teen. Go look them up, they are big. I heard yelping one day and say him hanging onto the neighbor’s dog’s tail and swinging around in the air. The dog stopped pooping in our yard after that. Then once I heard my mom yelling in the back yard. There she was being chased by the cat who probably thought it was lots of fun. I asked my mom, “What did you think the cat was going to do? Nibble on your ankles?”