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2008-07-05 Space Exploration - Newton/Einstein use in calculation of a space flight: Hi, thanks for writing. Although I am not sure of the figures involved, I would say that, since Einstein's adjustments are well known, that they would definately be used in planning such a flight. However...
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2008-07-04 Astronomy - Ik pegasi discussion (round 2): Hello, How many rounds are we going to go with this? Anyway, it seems you have misconstrued the answer to the question.I never said anywhere that this alleged (to be) Type 1a supernova "dumps as...
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2008-07-04 Astronomy - IK Pegasi (HR 8210): Hello, I think what the author is saying, is essentially similar to what I have been saying - that any supernova less than 1 kpc (= 1000 parsecs or 3200 light years) distant is nothing to fret over...
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2008-07-04 Astronomy - gas planets: Hi, Paul that's only because the gas giants are all 95% and above, pure gas! The rocky core (if at all there) is very very small. Jupiter is 1000 times the earth in volume, but the "rocky part" is extremely...
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2008-07-04 Popular Science - Hydrogen: Hi Han, One ton (english) is 2000 pounds which is 909 Kg. Water is molecular weight of 18 (Oxygen is 16, hydrogen is one per atom so molecular weight is 2 in water molecule. So water contains 2/18...
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