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Answer with a question it has been found recently that the universe is not expanding at a uniform rate but is actually accelerating so where does that put your 1860000mles per sec expansion

How does light from the big bang reach us through all the interfering stars dust in tact any matter atall or was the light emitted before the matter had formed

How ,without going into the maths can you possibly calculate the mass of the universe.Imean what information
Do you use.Sorry for being so uninformed.

If the LHC collider can accellerate protons to near the speed of light is their increase in mass negligible

Thanks TUT317

Can the double slit experiment be scaled up. I read it could be performed with molecules.can it be scaled up towork with say smoke or machine gun bullets