What forces in the universe are not a function of time?

I built an N-body orbital simulator in Python and I’d like some honest feedback.

What’s causing these lines of light?

how were they able to choose whether to detect the photons after they had passed through in John Archibald Wheeler's slit experiment?

Sugest me a book.

End of low energy running at the LHC, start of the final ever set of nominal proton proton running!

cual es la respuesta todas la ia me dan erroes