Fuck Yeah Fluid Dynamics

Celebrating the physics of all that flows. Ask a question, submit a post idea or send an email. You can also follow FYFD on Twitter and Google+. FYFD is written by Nicole Sharp, PhD.

Recent Tweets @

For a little Friday fun, enjoy this timelapse of magnetic putty consuming magnets. Really this is a bit of slow-motion magnetohydrodynamics. The magnet’s field exerts a force on the iron-containing putty, which, because it is a fluid, cannot resist deformation under a force. As a result, the putty will flow around the magnet, eventually coming to a stop once it reaches equilibrium, with its iron equally distributed around the magnet. Assuming the putty is homogeneously ferrous (i.e. the iron is mixed equally in the putty), that means the putty will stop moving when the magnet is at its center of mass.  (Video credit: J. Shanks; submitted by Neil K.)

  1. vangard reblogged this from fuckyeahfluiddynamics
  2. asfreeasthebirdsthatfly reblogged this from fuckyeahfluiddynamics
  3. crimreblogstuff reblogged this from crimjims
  4. takumiraine reblogged this from fuckyeahfluiddynamics
  5. intellegenceandbenevolence reblogged this from laboratoryequipment
  6. scoticus reblogged this from fuckyeahfluiddynamics
  7. fuk-a-duk reblogged this from fuckyeahfluiddynamics
  8. polkendotts reblogged this from fuckyeahfluiddynamics
  9. stuffmikeclicked reblogged this from fuckyeahfluiddynamics
  10. rosesgrowfromconcrete reblogged this from fuckyeahfluiddynamics
  11. nanefuapau07 reblogged this from fuckyeahfluiddynamics and added:
    Magnet magic
  12. rebelliouskat reblogged this from artoftennis
  13. decadriver reblogged this from artoftennis
  14. artoftennis reblogged this from fuckyeahfluiddynamics
  15. gelunnucifera reblogged this from fuckyeahfluiddynamics
  16. jet-girl reblogged this from fuckyeahfluiddynamics
  17. the-mtheory reblogged this from fuckyeahfluiddynamics
  18. themagnificentunknown reblogged this from fuckyeahfluiddynamics
  19. feedthegiant reblogged this from fuckyeahfluiddynamics
  20. teslathecat reblogged this from fuckyeahfluiddynamics
  21. squishy-ass-witch reblogged this from fuckyeahfluiddynamics
  22. vincentbeaupre reblogged this from fuckyeahfluiddynamics and added:
    So cool
  23. denebdeneb reblogged this from laboratoryequipment
  24. taco-ma-nia reblogged this from fuckyeahfluiddynamics
  25. renrensal reblogged this from fuckyeahfluiddynamics
  26. causeyoureffect reblogged this from laboratoryequipment and added:
    I’ve blogged this before but this extended cut is better.