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Re: Mourning Einsteinians

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Six weighty facts about gravity
 > http://www.symmetrymagazine.org/article/six-weighty-facts-about-gravity


 > Gravity: we barely ever think about it, at least until we slip on ice
 > or stumble on the stairs. To many ancient thinkers, gravity wasn’t
 > even a force—it was just the natural tendency of objects to sink
 > toward the center of Earth, while planets were subject to other,
 > unrelated laws.
 >
 > Of course, we now know that gravity does far more than make things
 > fall down. It governs the motion of planets around the Sun, holds
 > galaxies together and determines the structure of the universe
 > itself. We also recognize that gravity is one of the four fundamental
 > forces of nature, along with electromagnetism, the weak force and the
 > strong force.
 >
 > The modern theory of gravity—Einstein’s general theory of
 > relativity—is one of the most successful theories we have. At the
 > same time, we still don’t know everything about gravity, including
 > the exact way it fits in with the other fundamental forces. But here
 > are six weighty facts we do know about gravity.

1. Gravity is by far the weakest force we know.

2. Gravity and weight are not the same thing.

3. Gravity makes waves that move at light speed.

4. Explaining the microscopic behavior of gravity has thrown researchers 
for a loop.

5. Gravity might be carried by massless particles called gravitons.

6. Quantum gravity appears at the smallest length anything can be.



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Mourning Einsteinians Pentcho Valev <pvalev@yahoo.com> - 2016-04-05 01:09 -0700
  Re: Mourning Einsteinians Sam Wormley <swormley1@gmail.com> - 2016-04-05 11:28 -0500
  Re: Mourning Einsteinians Pentcho Valev <pvalev@yahoo.com> - 2016-04-05 11:00 -0700
    Re: Mourning Einsteinians Sam Wormley <swormley1@gmail.com> - 2016-04-05 13:46 -0500
      Re: Mourning Einsteinians "hanson" <hanson@quick.net> - 2016-04-05 13:47 -0700
        Re: Mourning Einsteinians Double-A <double-a3@hush.com> - 2016-04-05 15:03 -0700
          Re: Mourning Einsteinians "hanson" <hanson@quick.net> - 2016-04-05 15:44 -0700

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