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RichIsnang

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Everything posted by RichIsnang

  1. Good points, I rephrase my question. Given a planet revolving at the optimum distance around a star that is capable of supporting life, what is the probablility that life will start? How likely is it that the correct atmosphere and other factors will be in place for organisms to be able to start reproducing themselves? The origins of my question of course come from wondering if life is on other planets, it seems to me that there will be several planets at the correct distance from the correct stars with the correct distribution on the correct elements on the planet for maybe life to start? My thinking is that it takes cells/molecules of several thousand/million/billions atoms to be able to reproduce themselves and maybe therein lies the difficulty for life to start? Thoughts?
  2. When the sun, moon and earth are lines up during a lunar eclipse, no direct sunlight can reach the moon. However, the light coming from the sun that passes a little to the left or a little to the right of earth, will pass through the atmosphere but not hit the earth. When this happens, the atmosphere diffracts and filters the smaller(blue) wavelengths of light out and leaves the red. It also bends the light towards the moon. This happens because the atmosphere is denser than a vacuum(obviously) and because of the chemical composition of the atmosphere, so the red light reflects of the moon and hits your eyes and you see a red moon We only ever see one side of the moon because it's rotation has been slowed by tidal forces from the earth, because it is so close (relatively) these forces have a significant effect.
  3. Title is pretty self explanatory, by life I mean an organism that can reproduce itself. Given the right conditions aswell I'm not sure of the specifics but I guess warm pool/minerals available whatever needs be lol
  4. @the time traveller, do you know for a fact that these two light rays will arrive at the same time? If so, just speculation, you may need to look at the 'amount of space' on the curved path, as spacetime is curved by the massive body, space-time is curved round it so i can only imagine that the distance from one end to another may be 510.174 but a meter may be slightly smaller in the hugely curved regions. Einsteins theory of gravity tells us why massless particles like photons effected by gravity, it is not an attraction of the matter as such, it is just spacetime is bent around the matter, and as photons are in our time and space, their paths get curved too. The curvature of space-time at the event horizon will cause all matter and energy to accelerate towards the black hole at the ~3x10^8ms^-2, regardless of if it has mass or not
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