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    B Is there a way to measure gravity in a particular area of space

    How would one calculate the trajectory of a photon around a planet/star?
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    B Is there a way to measure gravity in a particular area of space

    Why can't an object's gravity be measured without comparing it to another object (edited)? It's a physical property that exists in space, no?
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    B Is there a way to measure gravity in a particular area of space

    Dumb question probably -- But is there a way to measure gravity in a particular area of space, or a "measurement" .. I.E. the gravity 10 miles above earth v.s 1000 miles above. Not force on another object, but some "unit" or measure of gravity itself.
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    The Smell of Space

    Here's a Chemist trying to recreate the smell: http://www.theregister.co.uk/2008/10/17/parfum_cosmique/ Could it be Ozone?
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    The Smell of Space

    This is just weird, and probably has a good explanation.. But how can a space suit or space have a distinct smell? Could the smell be coming from particles off their space suits? If so, how/why? http://spaceflight.nasa.gov/station/crew/exp6/spacechronicles4.html
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    Spiraling of Space and Gravity

    A compass? Why wouldn't that work.
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    Spiraling of Space and Gravity

    Thanks. I see your point about up/down not existing in all the solar systems and galaxies out there. But.. if you lined up all the N/S poles of all the planets, and suns, in a specific orientation, would there be a standard direction of rotation? I don't know if this can be figured out, I'm...
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    Spiraling of Space and Gravity

    Thanks guys. But why do most planets orbit in the same direction, and their solar system orbits another system, the same direction (?), all the way up to a blackhole, or larger object. (?) Where everything is swirling around like water down a massive drain? It seems this order needs some...
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    Spiraling of Space and Gravity

    Why is everything in space spiraling around larger (more massive) objects? Does gravity make objects want to move/orbit in a specific direction, at a specific speed? Over time will an orbiting object increase speed? Do objects sometimes orbit against the 'flow'? Thanks in advance.
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    Blackholes'n antimatter

    Do black holes convert matter to antimatter? How does antimatter come into 'existence' within a particle accelerator?
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    Gravity verses electromagnetic attraction

    Everyone knows mass generates gravity. But how can mass do it?
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    Gravity verses electromagnetic attraction

    Has it been proven or shown how mass creates a gravitation field? Where does the "gravity" come from within an atom? Do neutrons have something to do with gravity?
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    To scale animation of solar system

    Is there a good site somewhere on the net with a to scale animation/simulation of the solar system? I haven't seen anything yet. Thanks in advance.
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    Mass calcuations in space

    Mass calculations in space If an astronaut wanted to determine the mass of an object in outer space (0g), what is the procedure?
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