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Physics, Astronomy & Cosmology / Where does the energy go?
« on: 24/11/2010 20:12:10 »
You are forgetting that with every action, there is an equal and opposite reaction. Every step on the ladder you take is stealing kinetic energy from the rocket and giving it to you. It might be easier to visualize this if you imagine standing on the nose of your rocket and jumping. The rocket would slow down and you would speed up. Climbing the ladder would have the same effect, though the KE of the rocket as a whole system (you included) would remain the same. Thus it would require the same amount of energy to stop both rockets no matter what you are doing inside.
Going back to the ideas of some earlier posts: Couldn't a photon with even a miniscule mass explain dark energy? Wouldn't it cause the red shifting that we see from all distant objects that we use as the fundamental measurement of the relative speed of said object?
Going back to the ideas of some earlier posts: Couldn't a photon with even a miniscule mass explain dark energy? Wouldn't it cause the red shifting that we see from all distant objects that we use as the fundamental measurement of the relative speed of said object?