My favorite scene from Apollo 13 was when they were coming back to Earth and they needed to make a course correction prior to re-entry and all the scientists at the Space Center whipped out there slide rules and started working on the calculation.
It’s kind of amazing that for the most part we went to the Moon using slide rulers to get the math right.
I’ve actually heard Millennial Snowflakes say there was no way we could have gone to the moon because we didn’t “have any computers.” For the smartest Americans to ever have lived, they sure are a bunch of boneheads.