There appears to be a lot of evidence that gas flows outward in Galaxies. I've been trying to parse through the available data and am unable to get a clear answer to this question: is there any evidence for an average flow of stellar material in our galaxy? That is, do we know if stars are falling in, falling out, in a perfectly stable orbit (or do we just not have enough data yet)?
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Understanding Stagnation point in pitot fluid
What is stagnation point in fluid mechanics. At the open end of the pitot tube the velocity of the fluid becomes zero.But that should result...
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Why can't we use fissions products for electricity production ? As far has I know fissions products from current nuclear power plants cr...
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Yesterday, I understood what it means to say that the moon is constantly falling (from a lecture by Richard Feynman ). In the picture below ...
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I am having trouble understanding how centripetal force works intuitively. This is my claim. When I have a mass strapped on a string and spi...
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How can we know the order of a Feynman diagram just from the pictorial representation? Is it the number of vertices divided by 2? For exampl...
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As the title says. It is common sense that sharp things cut, but how do they work at the atomical level? Answer For organic matter, such a...
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Literature states neutral pion decay by QED cannot occur directly because the pion is uncharged. However, I cannot see why Photons are not a...
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Recently I was going through "Problems in General physics" by I E Irodov. In Electromagnetics chapter, there is a question how muc...
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