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

If anything happens to me call the police.

  1. Dec 25, 2005 #1
    The door to my closet just opened up all by itself. If you knew the door you would know that this is impossible. When the door is left open it swings shut by itself due to gravity. It doesn't swing open, but it just did. First it made noises, door noises, crk crrrrk crk swwwwiiiingggg. I'm a little bit terrified, but I'm going to go check it out now.
     
  2. jcsd
  3. Dec 25, 2005 #2
    Possibly wind or air circulation/pressure in the building? A long time ago I had a door that would generally shut on its ownbut if you made sure that it didn't close all the way and latch then the air circulating through the house would make the door swing on it's own. Sometimes it would even slam itself shut.
     
  4. Dec 25, 2005 #3

    Pengwuino

    User Avatar
    Gold Member

    Hmm its been 10 minutes, tribdogs dead, can I take his stereo now?
     
  5. Dec 25, 2005 #4

    Evo

    User Avatar

    Staff: Mentor

    I have a weak heart. I'm old. Don't do this!!!! :eek:
     
  6. Dec 25, 2005 #5
    Nothing there. scary though. I could have sworn the door creeked "cccccomming too kkkkkillll you" which is scaring me now even though I"m lying.
     
  7. Dec 25, 2005 #6

    Evo

    User Avatar

    Staff: Mentor

    It's waiting for you to turn the lights out.

    That's when they attack you know.

    Those evil, dark forces.

    Malevolent spirits.

    Disembodied evil beings.

    The kind with glowing red eyes. :bugeye:
     
  8. Dec 25, 2005 #7
    shh, what was that?
     
  9. Dec 25, 2005 #8

    Mk

    User Avatar

    Impale his head on a pike while you're there.
     
  10. Dec 25, 2005 #9
    It's the ghosts of christmas past! Run for your lives!!!!

    :eek:
     
  11. Dec 25, 2005 #10
    there's only one ghost of christmas past. And this one isn't it. Unless the ghost of christmas past is a little girl about 5 years old, with really pale skin who always says "No, Daddy, It hurts daddy. They don't like you anymore daddy"
     
  12. Dec 25, 2005 #11

    Mk

    User Avatar

    I thought we decided we'd never speak of it again.
     
  13. Dec 25, 2005 #12
    If anything happens to you we'll be calling Domino's.
     
  14. Dec 25, 2005 #13
    This kind of thing just doesn't happen on Christmas.
     
  15. Dec 25, 2005 #14
    Whatever happens I'm going to take a nap.
     
  16. Dec 25, 2005 #15

    Pengwuino

    User Avatar
    Gold Member

    You're going to miss out the grab for all of his stuff once we verify hes dead.
     
  17. Dec 25, 2005 #16
    Why the wait?
     
  18. Dec 25, 2005 #17
    your love is overwhelming, really.
     
  19. Dec 25, 2005 #18
    Never mind, he's still alive. I'm going away to take a nap.
     
  20. Dec 26, 2005 #19
    No thats not true. I thought about this for quite some time until I found the solution. The door can swing open OR closed due to gravity. It depends on how the door is hinged properly. Think of the z-axis going straight up. Positive angles are counter clockwise, negative angles are clockwise. The door is aligned along the veritical z axis. (Up and down, so to speak). If the door has positive angle, (counter clockwise), this means the bottom of the door is on the centerline of the z-axis. The top of the door is to the LEFT of the z-axis. This means gravity will always casue the door to swing to the LEFT. A positive angle will cause it to always swing to the RIGHT. Think of the top of the door leaning over the bottom of the door. It will turn in the direction it leans over itself.
     
  21. Dec 26, 2005 #20
    He's already determined the particular door in quetion is hung such that it will only swing shut. This wouldn't change by itself.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: If anything happens to me call the police.
  1. Call me Moses (Replies: 11)

Loading...