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Why Elephants Don’t Explode: How Nature Solves Bigness

178 pointsby aatishover 9 years ago

19 comments

vanderZwanover 9 years ago
This is why the largest animals in the world live in the sea: it&#x27;s a better cooling system!<p>Also, for those interested to know more, I recommend looking up Geoffrey B. West&#x27;s stuff on complexity. It mentions the same things as this article and puts them in a wider context:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=DFFVSvAr7Wc" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=DFFVSvAr7Wc</a>
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henrywover 9 years ago
TLDR:<p>If you burrow down — all the way down — to a typical cell in an elephant, and then compare it to a typical cell in a mouse — amazingly, the two cells behave differently.<p>Elephant cells aren’t lazy. They’re always working, but compared to mouse cells, elephant cells typically do their job a little more slowly, burn less fuel to get the job done and, being more efficient, they run cooler.*<p>So that’s why elephants don’t spontaneously combust (and neither do we, much to Calvin’s relief.) An elephant is built from cooler stuff than a mouse. Even though an elephant has many, many more little heaters packed inside its body, each heater runs at a much lower setting.
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me_againover 9 years ago
Reminiscent of JBS Haldane&#x27;s Classic essay &quot;On Being The Right Size&quot;, which I recommend to anyone who liked this. <a href="http:&#x2F;&#x2F;irl.cs.ucla.edu&#x2F;papers&#x2F;right-size.html" rel="nofollow">http:&#x2F;&#x2F;irl.cs.ucla.edu&#x2F;papers&#x2F;right-size.html</a>
legitsterover 9 years ago
Robert Krulwich has such an amazing way of explaining things. It takes almost no time to recognize his writing.
Fizzadarover 9 years ago
Really enjoyed this - interesting read with awesome illustrations and interactivity. Also love the Noticing.co name (bookmarked).
Animatsover 9 years ago
Of course. For small animals, life is a struggle to keep warm. For large animals, life is a struggle to cool off.
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Vexsover 9 years ago
This reminds me a lot of the works of David Macaulay, the art style and writing style are very similar. He wrote some great books, amazing for curious kids.
nstartover 9 years ago
This was a great post. Very easy to digest and lots of stuff to ponder on as my head slowly wraps itself around a few counter intuitive learnings.
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trhwayover 9 years ago
and on the same note of volume&#x2F;surface ratio - Sun produces heat with the intensity (J&#x2F;kg) of a pile of regular compost.
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richmarrover 9 years ago
Interestingly according to this some of the species farthest from the line of best fit (in both directions) are bats.<p>Pteropus Giganteus (Indian Flying Fox) appears to have an extraordinatorily slow metabolic rate per kg, scoring 0.044, yet Rousettus Aegyptiacus (Egyptian Fruit Bat) scores 5.508.
captaincrowbarover 9 years ago
The scrolling seems perfectly normal to me, but that huge fixed banner that takes up 1&#x2F;3 of the screen is just ridiculous.
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thegoofromspaceover 9 years ago
Huh. I wonder how this works for warm-blooded vs. cold-blooded animals?
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jonsterlingover 9 years ago
elephants scale after all
ofover 9 years ago
really hard to read this because the scrolling is acting all weird on firefox
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imhover 9 years ago
Can we start getting a label&#x2F;tag for sites that hijack scrolling? The way we label pdfs and articles from previous years?
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therealidiotover 9 years ago
The scroll on this site is unusable - it kept scrolling too far or not enough. The performance is awful too (low framerate on an i7-4790K + NVidia 980 Ti, which should be able to handle some simple scrolling)
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tronautover 9 years ago
OT: Why do sites insist on hijacking scroll behavior? It annoys me to no end
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luana_santosover 9 years ago
teste
luana_santosover 9 years ago
test