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Rheology

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Capital University Everything Flows The Greek letters on the hourglass logo of The Society of Rheology panta rei (sometimes pronounced panta rei ) may be ... – PowerPoint PPT presentation

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Title: Rheology


1
Rheology
  • Capital University

2
Everything Flows
  • The Greek letters on the hourglass logo of The
    Society of Rheology panta rei (sometimes
    pronounced panta rei)may be translated
    everything flows. This phrase (or philosophy)
    is attributed to the Greek philosopher Heraclitus
    of Ephesus (536470 BCE) and is taken from the
    more complete quote Everything flows and
    nothing abides everything gives way and nothing
    stays fixed. The Society motto was suggested by
    Eugene Cook Bingham and it reflects the field of
    study of rheology deformation and flow.

From http//www.aip.org/tip/INPHFA/vol-10/iss-2/p2
9.html
3
Vocabulary for Today
  • Rheology
  • Viscosity
  • Non-Newtonian Fluids
  • Polymer

4
Viscosity
  • http//en.wikipedia.org/wiki/FileViscosity.gif

5
Viscosity and Water
  • http//entertainment.howstuffworks.com/water-blast
    er1.htm
  • Water's viscosity can be represented by a
    coefficient that does not vary.

6
Non-Newtonian Fluids
  • http//www.youtube.com/watch?vf2XQ97XHjVw

7
Another Non-Newtonian Fluid
  • http//web.mit.edu/nnf/research/phenomena/slug.htm
    l

8
Polymer
  • A chain of molecules with a repeating pattern.
    Such as DNA (and other common everyday life
    things)

Patternskinesthetic then spaghetti
9
At last Gak!
  • Borax causes the glue molecules to organize in
    chains.
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