from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A condition in which there is very little net gravitational force, as of a free-falling object, an orbit, or interstellar space.
  • n. A minute shift in gravity that can occur through geologic factors in a region, such as the movement of the earth's crust along fault lines.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A state of very low acceleration between two free floating objects, as found in sustained freefall, in orbit, or in interstellar space.


from Wiktionary, Creative Commons Attribution/Share-Alike License

micro- + gravity


  • For one, bone loss in microgravity is sorely needing more than a few data and interpolating curves through scattered points is the easy part.

    Gen Y Management Concept Update - NASA Watch

  • New Scientist put together a slideshow of interesting experiments in microgravity, like you would experience on the International Space Station (ISS).

    Boing Boing

  • "Giant crystals and spherical flames: science in microgravity"

    Boing Boing

  • Andrea James: Alka-Seltzer added to spherical water drop in microgravity Link

    Boing Boing

  • I will concede, microgravity is no more, the science budget hasn't gone up as much as was once planned, and aeronautics just isn't what it used to be.

    Mike Griffin Wants His Old Job Back - NASA Watch

  • One of the few scientific success stories of the International Space Station has been its use to grow large, pure crystals in microgravity (see Space station unlocks new world of crystals).

    NASA Watch: August 2007 Archives

  • I've floated in microgravity a few times on Zero G flights, and it would sure be even more fun to float around in satin poufs instead of those pedestrian spacesuits.

    Boing Boing: November 5, 2006 - November 11, 2006 Archives

  • One is that, in microgravity, blood that normally is dragged by gravity to the legs instead is spread evenly throughout the body, causing astronauts to feel rather like they have a head cold.

    Emeril kicks it up a notch...all the way to orbit

  • What they all taught us (unless you actually care about fruitfly reproduction in microgravity) was that the only individuals who would _ever_ be allowed to get into space were precisely the kind of government-approved jockstraps who were on the varsity football team when you were in high school — oh yes, and an occasional cheerleader — oops, make that public school teacher.

    » ‘Where do we go from here’ heinleinblog

  • Infrastructure like that cannot be developed and tested either on Earth or in microgravity (i.e.,

    Why Some Say the Moon? - NASA Watch


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  • Tom Petty wrote a song that touches upon this subject. Something about free-falling.

    February 28, 2011