1. Welcome to the new boards! Details here!

Tucson Thought you guys might like to see this...

Discussion in 'SouthWest Region Discussion' started by TuskenFan, Oct 16, 2006.

  1. TuskenFan

    TuskenFan Jedi Padawan star 4

    Jan 5, 2005
    I know that the Charlotte FanForce is just starting to be brought back from the dead but I have been keeping a photographic history of the recent events that we have been having. I thought our "Sister City" might like to see what we have been doing in Charlotte. So, [link=]click here[/link] to go to our Photo Bucket page and select an event. Enjoy...
  2. Jada

    Jada Jedi Master star 6

    Apr 20, 2006
    I'd like to state for the record that I won the Trivial Pursuit game on Saturday night:


    And Sio Bibble wasn't mentioned once so I didn't giggle . . . but I did cackle. :p
  3. cathiecat

    cathiecat Jedi Master star 4

    Mar 24, 2005
    Very Nice! Good work!
  4. hal9k1

    hal9k1 Jedi Master star 4

    Dec 22, 2003

    Going for a blast into the real past
    If the experiment works, a signal could be received before it's sent

    If his experiment with splitting photons actually works, says University of Washington physicist John Cramer, the next step will be to test for quantum "retrocausality."

    That's science talk for saying he hopes to find evidence of a photon going backward in time.

    "It doesn't seem like it should work, but on the other hand, I can't see what would prevent it from working," Cramer said. "If it does work, you could receive the signal 50 microseconds before you send it."

    Uh, huh ... what? Wait a minute. What is that supposed to mean?

    Roughly put, Cramer is talking about the subatomic equivalent of arriving at the train station before you've left home, of winning the lottery before you've bought the ticket, of graduating from high school before you've been born -- or something like that.

    "It probably won't work," he said again carefully, peering through his large glasses as if to determine his audience's mental capacity for digesting the information. Cramer, an accomplished experimental physicist who also writes science fiction, knows this sounds more like a made-for-TV script on the Sci Fi Channel than serious scientific research.

    "But even if it doesn't work, we should be able to learn something new about quantum mechanics by trying it," he said. What he and UW colleague Warren Nagourney plan to try soon is an experiment aimed at resolving some niggling contradictions in one of the most fundamental branches of physics known as quantum mechanics, or quantum theory.

    "To be honest, I only have a faint understanding of what John's talking about," Nagourney said, smiling. Though claiming to be "just a technician" on this project, Cramer's technician partner previously assisted with the research of Hans Dehmelt, the UW scientist who won the 1989 Nobel Prize in physics.

    Quantum theory describes the behavior of matter and energy at the atomic and subatomic levels, a level of reality where most of the more familiar Newtonian laws of physics (why planets spin, airplanes fly and baseballs curve) no longer apply.

    The problem with quantum theory, put simply, is that it's really weird. Findings at the quantum level don't fit well with either Newton's or Einstein's view of reality at the macro level, and attempts to explain quantum behavior often appear inherently contradictory.

    "There's a whole zoo of quantum paradoxes out there," Cramer said. "That's part of the reason Einstein hated quantum mechanics."

    One of the paradoxes of interest to Cramer is known as "entanglement." It's also known as the Einstein-Podolsky-Rosen paradox, named for the three scientists who described its apparent absurdity as an argument against quantum theory.

    Basically, the idea is that interacting, or entangled, subatomic particles such as two photons -- the fundamental units of light -- can affect each other no matter how far apart in time or space.

    "If you do a measurement on one, it has an immediate effect on the other even if they are separated by light years across the universe," Cramer said. If one of the entangled photon's trajectory tilts up, the other one, no matter how distant, will tilt down to compensate.

    Einstein ridiculed the idea as "spooky action at a distance." Quantum mechanics must be wrong, the father of relativity contended, because that behavior requires some kind of "signal" passing between the two particles at a speed faster than light.

    This is where going backward in time comes in. If the entanglement happens (and the experimental evidence, at this point, says it does), Cramer contends it implies retrocausality. Instead of cause and effect, the effect comes before the cause. The simplest, least paradoxical explanation for that, he says, is that some kind of signal or communication occurs between the two photons in reverse time.

    It's all incredibly counterintuitive, Cramer acknowledged.

    But standard theoretical attempts to deal with entanglement have become a bi
  5. Vangarian

    Vangarian Jedi Master star 4

    Mar 9, 2003
    Now that is food for thought.
  6. _Anakin_Vader_

    _Anakin_Vader_ Jedi Youngling star 3

    Mar 8, 2005
    See, now that's the kind of stuff that makes me wat to go on Wikipedia and print out a thousand pages on Einstein, Quantum theory, Space-time continuum, Photons, Lightspeed, and whatever else, and just read and read and read. I really do LOVE this stuff thats all unexplained and contradictory. I could live on the stuff. But, life gets in the way and I forget I want to do it untill someone posts something else that makes me think. GAH!
  7. hal9k1

    hal9k1 Jedi Master star 4

    Dec 22, 2003
    Again, more amusing PS3 line stuff.....

    Those who camp out for system launches know ahead of time that they'll have to endure a number of hardships to walk away with a new game console on day one, but being shot probably isn't among them.

    A drive-by BB gun shooting hit four people at a Best Buy store in Lexington, Kentucky, last night according to reports from the local CBS affiliate, WKYT. Three of the people hit were camped out in line to buy a PlayStation 3 when it goes on sale Friday morning, while the fourth was a WKYT reporter covering the line for a story.

    Two of those hit reportedly packed up and left the line, saying "a PlayStation 3 simply isn't worth it." The third customer remained in line, telling WKYT "I'd do it again, even if I get shot again."

    A representative with the Lexington Police Department told GameSpot the shooting happened about 8 p.m., with nobody requiring medical attention, and none of the people hit by the BBs filing a police report. While the police are keeping an eye on the line, he said there have been no more incidents at the Best Buy, and no reports of lines from any other retailers in the area.

    And We've been called crazy, yea right.
  8. Jada

    Jada Jedi Master star 6

    Apr 20, 2006
    Did these two threads get merged or something?
  9. hal9k1

    hal9k1 Jedi Master star 4

    Dec 22, 2003
    No, sorry about that, I messed up.

    I will be offline for the next 48 hours, I think I need to Format my hard Drive and rebuild it.