Figured this would bring interesting responses.
Mine is Newton's third law, only because of how it applies to rockets - the idea that some gun/rocket accelerates forward exactly based on the speed and mass of the bullets/exhaust is pretty weird when u think about it. That's something moving...
This is my own difficulty.
Our local group of galaxies goes around another local group in a space time 'disturbed bowl'
Our galaxies in our local group go around each other in a disturbed spacetime bowl
Our sun goes around our galaxy center of mass in a bowl
Our planets go around the sun...
Seems like an odd question - but if your an astraunaut in Earth orbit and travel with it around the sun - your going different speeds around the sun but always traveling the same distance away from any two points on the sun every second (keplers #2)
the how = closer you are to sun, the faster...
There's actually a disconnect between things like 'metaphor' and intelligence.
The prodigy portrayed in the movie 'rain-man' (actor was dustin hoffman) was a man who could rattle off basically anything memory wise (phone book like)... but if you said 'get a hold of yourself' he would grab his...