Andrew Dickerson of the Georgia Institute of Technology tested how a Labrador Retriever moves when it is trying to dry itself. They discovered that the dog oscillated its skin at 4.3 Hz and then extrapolated a mathematical model for furry animals in general:
They reasoned that the water is bound to the dog by surface tension between the liquid and the hair. When the dog shakes, centripetal forces pull the water away. So for the water to be ejected from the fur, the centripetal force has to exceed the surface tension.
This model leads to an interesting prediction. If the animal has a radius R, the shaking frequency must scale with R^0.5. That makes sense, smaller animals will need to oscillate faster to generate forces large enough to dry themselves.
To find out whether that applies in nature, Dickerson and pals studied films of various animals of different sizes. They found that a mouse shakes at 27 Hz, a cat at about 6 Hz while a bear shakes at 4Hz. “Shake frequencies asymptotically approach 4Hz as animals grow in size,” they conclude.
The joy of life comes from our encounters with new experiences, and hence there is no greater joy than to have an endlessly changing horizon, for each day to have a new and different sun.
July 1, 1979 Sony introduced the 'Walkman'.....last Friday, they unceremoniously killed the Walkman and will no longer produce it. :(
I loved making mixed tapes back in the day.....but damn, they sure did eat up batteries like they were nothing!
The joy of life comes from our encounters with new experiences, and hence there is no greater joy than to have an endlessly changing horizon, for each day to have a new and different sun.
Not today Sir, Probably not tomorrow.............................................. bayfront arena st. pete '94
you're finally here and I'm a mess................................................... nationwide arena columbus '10
memories like fingerprints are slowly raising.................................... first niagara center buffalo '13
another man ..... moved by sleight of hand...................................... joe louis arena detroit '14
When Abercrombie Co. opened in Manhattan in 1892, it sold excursion goods. In fact, it sold adventurer-type items to no less than Teddy Roosevelt, Amelia Earhart and Charles Lindbergh. As it became more popular (and after Fitch came on), the flagship store on Madison Avenue housed a shooting range, a golf school with a resident pro, a kennel for cats and dogs, and a small pool for fly-fishing lessons.
Never been in an A&F store...all I knew about them was that they sold thongs with suggestive sayings on them for little girls and play really loud music....
The joy of life comes from our encounters with new experiences, and hence there is no greater joy than to have an endlessly changing horizon, for each day to have a new and different sun.
Full grown coconut crabs have been known to grow as large as 6-feet in length. The massive arthropods – which can weigh as much as 30 pounds – cannot swim, but can climb trees and are strong enough to crack open the tree-fruit that gives them their name.
The joy of life comes from our encounters with new experiences, and hence there is no greater joy than to have an endlessly changing horizon, for each day to have a new and different sun.
The joy of life comes from our encounters with new experiences, and hence there is no greater joy than to have an endlessly changing horizon, for each day to have a new and different sun.
Full grown coconut crabs have been known to grow as large as 6-feet in length. The massive arthropods – which can weigh as much as 30 pounds – cannot swim, but can climb trees and are strong enough to crack open the tree-fruit that gives them their name.
holy shit. fascinating.
if it cant swim where does it live(apart from the side of garbage bins)?
hear my name
take a good look
this could be the day
hold my hand
lie beside me
i just need to say
Comments
They say every sin is deadly but I believe they may be wrong...I'm guilty of all seven and I don't feel too bad at all
Andrew Dickerson of the Georgia Institute of Technology tested how a Labrador Retriever moves when it is trying to dry itself. They discovered that the dog oscillated its skin at 4.3 Hz and then extrapolated a mathematical model for furry animals in general:
They reasoned that the water is bound to the dog by surface tension between the liquid and the hair. When the dog shakes, centripetal forces pull the water away. So for the water to be ejected from the fur, the centripetal force has to exceed the surface tension.
This model leads to an interesting prediction. If the animal has a radius R, the shaking frequency must scale with R^0.5. That makes sense, smaller animals will need to oscillate faster to generate forces large enough to dry themselves.
To find out whether that applies in nature, Dickerson and pals studied films of various animals of different sizes. They found that a mouse shakes at 27 Hz, a cat at about 6 Hz while a bear shakes at 4Hz. “Shake frequencies asymptotically approach 4Hz as animals grow in size,” they conclude.
- Christopher McCandless
I wanna race..with the sundown..I want a last breath..I don't let out...
for 'Snow White And The Seven Dwarfs'
2010: 5/20 NY, 5/21 NY ... 2011: 6/21 EV NY, 9/3 WI, 9/4 WI ... 2012: 9/2 PA, 9/22 GA ... 2013: 10/18 NY, 10/19 NY, 10/21 PA, 10/22 PA, 10/27 MD
2015: 9/23 NY, 9/26 NY ... 2016: 4/28 PA, 4/29 PA, 5/1 NY, 5/2 NY, 6/11 TN, 8/7 MA, 11/4 TOTD PA, 11/5 TOTD PA ... 2018: 8/10 WA
2022: 9/14 NJ ... 2024: 5/28 WA, 9/7 PA, 9/9 PA ---- http://imgur.com/a/nk0s7
I loved making mixed tapes back in the day.....but damn, they sure did eat up batteries like they were nothing!
- Christopher McCandless
I wonder why? :?
i heard this sad news yesterday. funnily enough what surprised me more was that they were still making it up to now.
guess i better stock up on discmans now just in case the same fate befalls them.
take a good look
this could be the day
hold my hand
lie beside me
i just need to say
theres one in michigan too.
take a good look
this could be the day
hold my hand
lie beside me
i just need to say
Not today Sir, Probably not tomorrow.............................................. bayfront arena st. pete '94
you're finally here and I'm a mess................................................... nationwide arena columbus '10
memories like fingerprints are slowly raising.................................... first niagara center buffalo '13
another man ..... moved by sleight of hand...................................... joe louis arena detroit '14
Never been in an A&F store...all I knew about them was that they sold thongs with suggestive sayings on them for little girls and play really loud music....
- Christopher McCandless
- Christopher McCandless
http://miehana.blogspot.com/2010/10/swi ... found.html
- Christopher McCandless
it gives them the hiccups.
take a good look
this could be the day
hold my hand
lie beside me
i just need to say
holy shit. fascinating.
if it cant swim where does it live(apart from the side of garbage bins)?
take a good look
this could be the day
hold my hand
lie beside me
i just need to say