2/ Analogy isn't perfect, bc the dF/dz for gravity has a downward slope, but the dF/dz for a bungee cord INCREASES, but it's a hand-waving way to see that the energy is soaked up by increasing the radius, not the velocity
-
-
Show this thread
-
3/ Here's yet another way to look at it. Picture that big funnel with a steel ball bearing you see at science museums. Release the ball on a tangential path. It circles the funnel, WAYYY out at the lip, slowly, slowly. Yes? That ball has a LOT of potential energy right now. >
Show this thread -
4/ Keep going. More air resistance, ball drops lower, ball goes FASTER. Yet more. Yet lower. Yet faster. Agreed? Videotape that...and play it backwards.
Show this thread -
5/ Now, in addition to the backwards masking where the prog rock soundtrack turns into Geroge Soros asking you to destroy western civilization through big government, what ELSE is going on?
Show this thread -
6/ Answer: we see a ball orbiting VERY quickly close to the bottom of the funnel, and we see energy being added to it (negative air resistance, but imagine a very tiny rocket). And what happens? It slowly climbs further out, slows down, and stockpiles energy as potential energy.
Show this thread
End of conversation
New conversation -
-
-
So gravitons?
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
If my excursions with KSP and Atomic Rockets sunk in, orbits have set speeds, essentially. If you change your speed, you change your orbit. You CAN'T go faster/slower and stay in that same ellipse. I may be off base here.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
That’s, like, super-cool. If I understood it. (Me and physics have a rocky relationship.)
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.