1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Does slimy spit have a spring constant?

  1. Jun 20, 2014 #1
    Hello

    WARNING: Some people may find this post a little gross.

    I observed something today that I didn't know could happen in fluids, only in solids. I let some slimy spit out from my mouth. It became a longer and longer connected line, and then the bottom broke off. What was interesting was what happened with the part connected to my mouth. It kind of jumped up again, like a spring that had been stretched. I've never thought about this before. Does slimy fluidshave some kind of spring constant?, can this be explained with elementary fluidmechanics?
     
  2. jcsd
  3. Jun 20, 2014 #2

    A.T.

    User Avatar
    Science Advisor
    Gold Member

  4. Jun 20, 2014 #3
    Yes. Mucus and spit are viscoelastic, and exhibit, among other things, the phenomenon of recoil.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Does slimy spit have a spring constant?
  1. A running Spit (Replies: 2)

Loading...