asteroza + body + research   14

UCSD Jacobs School of Engineering
Apparently Toucan birds have a highly mechanically optimized beak. Very lightweight, with a hollow structure where there are no stresses, and elsewhere a bone fiber/membrane foam enclosed by an outer keratin tile sheet exterior, creating a natural biocomposite foam sandwich material in their beaks. Still doesn't explain fully why the beaks are so large, especially for a fruit eater. There was other research into beak properties by using IR camera studies, and it appears the beak is also used as a high performance controllable blood heat radiator to dump metabolic heat. They do interesting tricks like doing a burst of heat dumping just prior to going to sleep to slow down metabolic processes quicker.
core  hollow  lightweight  beak  large  bird  Toucan  sandwich  exterior  tile  keratin  foam  bone  composite  biocomposite  engineering  mechanical  research  structure  body  animal  Delicious 
december 2012 by asteroza
Perpetual motion: A piezoelectric pacemaker that is powered by your heartbeat | ExtremeTech
Wow, that's actually pretty smart, if the local energy generation and storage for the periodic stimulus firing is sufficient and it isn't a large device to stuff into someones chest. Also much simpler and potentially more failsafe than say a blood sugar powered fuel cell.
batteryless  integration  technology  research  hardware  electronics  devices  medical  medicine  health  heart  body  pacemaker  powered  human  collector  generator  power  harvestor  energy  kinetic  piezoelectric  Delicious 
november 2012 by asteroza
20120816_hydrodynamics_portuguese-man-o-war_Iosilevskii-613-26.pdf (application/pdf Object)
Interesting paper covering the hydrodynamics of a Man-of-War, which seems optimized to sail using the wind at specific water surface speeds to optimize the spread of its tentacles for prey capture.
fin  sailing  jellyfish  man-of-war  portuguese  hydrodynamics  aerodynamics  structure  body  feeding  propulsion  evolution  research  biology  Delicious 
september 2012 by asteroza

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