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2009-01-07 Astronomy - Small cold sun?: Hello David, Believe me - there are no silly questions - only silly answers! And I hope this answer isn't one of them! Charged particles from the sun (comprising a plasma) collide with earth's atmosphere...
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2009-01-07 Astronomy - Science fair telecope: Hi Pat, Sorry, but I don't build scopes; I only know how to use them on the night sky. (I pay people to build my scopes...people that are very skilled at it and know what they are doing). I also take...
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2009-01-07 Astronomy - expansion of the universe: Hello Tue, For your first question, yes, the rate of expansion can be calculated. And I guarantee you - the answer will be wrong! There's just too much uncertainty. IF the universe is accelerating...
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2009-01-07 Astronomy - expansion of the universe: Hello Tue, You ask some very thoughtful questions! I hope to give you a little more "food for thought". First of all, from your questions, I'm pretty sure you're familiar with the "standard model"...
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2009-01-06 Popular Science - earth: Hi, The earth's orbit isnt a "patthar ki lakeer"! It is a dynamic entity. However one has to understand that what the above means is that though it is ever changing in very small bits it is generally...
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