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Changes since PF started

  1. Sep 29, 2008 #1
    When I first started posting on PF the big question in physics was whether the Universe would expand forever, or if gravity would eventually win and cause a big crush. Since then we've learned that not only is the Universe expanding, it is accelerating. This is the biggest change in what we know about physics that I can think of. What other major changes has there been since PF started?
  2. jcsd
  3. Sep 29, 2008 #2
    I guess Pluto becoming a non planet is up there too.
  4. Sep 29, 2008 #3


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    Was PF around pre-1998?
  5. Sep 29, 2008 #4

    Ivan Seeking

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    That's what I was about to post. I first heard about the acceleration in "official" terms in March of 1999, and it was being discussed informally at least a year before that.
  6. Sep 29, 2008 #5
    We started Spring of 2001
  7. Sep 29, 2008 #6
    I hadn't heard about it until about 2003 and that's what's important
  8. Sep 29, 2008 #7
    So you were probably still worrying about the solar neutrino problem ?
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