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 @

Thermal imaging of emperor penguins in Antarctica shows that, in still conditions, large portions of their bodies remain colder than ambient temperatures. In the image above, the heads, beaks, eyes, and flippers of this pair of penguin are the warmest while much of their feathered surface remains several degrees colder than the temperature around them. Not only does this indicate that the penguins’ skin and feathers are extremely effective insulators—the core temperature of each penguin is roughly the same as a human’s—but it means that the penguins are losing heat via radiative cooling toward the sky, the same way your car does when frost forms. The measurements in the study are for penguins at least one body length away from any other penguins; of course penguins typically huddle together to generate additional warmth. The mathematics of this behavior are under active research. (Photo credit: D. McCafferty et al.; via Wired)

  1. permanganato-de-odio reblogged this from fuckyeahfluiddynamics
  2. allosauropteryx reblogged this from fuckyeahfluiddynamics and added:
    Birds are often thermodynamically interesting. I’m curious about the flippers and if they’re used for heat disposal when...
  3. lueanne reblogged this from fuckyeahfluiddynamics
  4. daaannnccceallnight reblogged this from fuckyeahfluiddynamics
  5. liggy-proprin reblogged this from fuckyeahfluiddynamics
  6. pingthings reblogged this from fuckyeahfluiddynamics
  7. zenmonkey reblogged this from fuckyeahfluiddynamics
  8. boocakess reblogged this from fuckyeahfluiddynamics
  9. mamma-raptor reblogged this from fuckyeahfluiddynamics
  10. joyfulcarrot reblogged this from teachingyoustuff
  11. teachingyoustuff reblogged this from fuckyeahfluiddynamics
  12. nothingiscoollikeapenguin reblogged this from fuckyeahfluiddynamics
  13. tonystarksbutt reblogged this from botoxymoron
  14. botoxymoron reblogged this from xoxodingusgirl
  15. charlottejanine reblogged this from fuckyeahfluiddynamics
  16. tsubasadreams reblogged this from fuckyeahfluiddynamics
  17. ladielette reblogged this from fuckyeahfluiddynamics
  18. neenamonners reblogged this from fuckyeahfluiddynamics
  19. insomniao-o reblogged this from hex-spaces
  20. xmylittleworldx reblogged this from fuckyeahfluiddynamics
  21. shibamo4 reblogged this from fuckyeahfluiddynamics
  22. conchetuflower reblogged this from worello and added:
    poko mas y tienen vision de rayos laser
  23. alanmjolnir reblogged this from casi-pero-no
  24. fortheloveofshenanigans reblogged this from casi-pero-no
  25. fireslayer reblogged this from casi-pero-no
  26. estoesun reblogged this from casi-pero-no
  27. daturainoxia reblogged this from rapunsol
  28. jacnrh reblogged this from laboratoryequipment
  29. gocuxo reblogged this from casi-pero-no
  30. blehculiao reblogged this from rapunsol
  31. rapunsol reblogged this from worello
  32. 5minutesalone reblogged this from casi-pero-no
  33. casi-pero-no reblogged this from worello
  34. iammonozombie reblogged this from worello
  35. puras-weas reblogged this from worello
  36. worello reblogged this from breadonly
  37. id-like-to-visit-the-moon reblogged this from monkey-wonder
  38. monkey-wonder reblogged this from fuckyeahfluiddynamics