Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Can anyone tell me exactly what this represents?

  1. Jul 7, 2014 #1
    I saw this the other day on a physics joke and i was wondering if anyone could tell me what it represents.

    (1/√2)*(Ψxy)

    (note: the x and y are just the values i put, the original values were labeled full and empty but i presume that has to do with the joke)
     
  2. jcsd
  3. Jul 7, 2014 #2

    TumblingDice

    User Avatar
    Gold Member

    The greek letter psi is use to express water potential. Hmm... Could it be a relationship for "glass half full/glass half empty" theme?
     
  4. Jul 7, 2014 #3
    That was the joke yeah, I read that the Greek letter psi was used in quantum mechanics to describe wave functions and schrodingers superpositioning, I assumed te joke was about superpositioning because it would make the glass both half full and half empty (and so on including the other possible states) and I didn't know if maybe it was used to list all possible states of the glass (or at least the wanted ones under the circumstance for the joke)
     
  5. Jul 7, 2014 #4

    UltrafastPED

    User Avatar
    Science Advisor
    Gold Member

    This version is definitely funny! :tongue:
     
  6. Jul 7, 2014 #5

    TumblingDice

    User Avatar
    Gold Member

    A glass can be half-full and half-empty at the same time classically without need for QM or superposition. :wink:

    Could it refer to someone you can't tell will be optimistic or pessimistic about something until you 'measure' (or offer your own thoughts first)...? Was there more to the joke than just the formula?

    EDIT: Just read Ultrafast's post. Obviously the formula says it all. Can someone please explain for me? TIA!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Can anyone tell me exactly what this represents?
Loading...