noxid

could there be whole other galaxies and solar systems and being made of dark matter

If i was in a tube of circular cross section that curved on itself (doughnut shaped), and i was in space floating in the center if the tube and the tube was spinning very fast, negating all the effects of real gravity and air inside the tube, would i be attracted to any particular side of the tube??? Follow up question, is it correct to say that i have to be touching the sides of the spinning tube in order to feel the effects of artificial gravity

what is the difference between euclidean and non euclidean geometry-thankyou

I have been taught that chlorophyll flouresces and emits heat when exposed to certain waveleghts of light. my question is when light strikes the electrons in a flourescent material, do the electrons break free from the atom/molecule they were originally bound to? is this what happens when a molecule is said to be excited?

how do you know that the inate intention is mimicry and not accidental genes being expressed that give it a better chance of survival because it is then made to look like unpleasent or poisonous species

as far as i know the table exist only in one place becuZ it is being oberved (see young's double slit experiment using electrons), when not oberved the particles behave as waves (essentially, the particle is at every possible postion the particle can be), obervation causes a disturbance that materialize and shows where the particle is at that instant