# OT: They're back

Page 2 of 3
• posted on May 20, 2011, 2:28 pm

Damn! Learn something new every day. That is absolutely awesome!
The implications of that mechanism, and it's origins, is absolutely mind-blowing!!
Thanks, Doug!
--
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• posted on May 20, 2011, 2:52 pm

Certainly makes one wonder if mother nature really is that mathematically inclined.
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• posted on May 20, 2011, 3:38 pm

Not religious, but maybe I oughta be ... Makes you wonder. A bug using prime numbers for survival ... Sheeeeeesh!
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• posted on May 20, 2011, 4:54 pm
Swingman wrote:

most things with spiral based shells are based upon the fibinocci sequence
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• posted on May 20, 2011, 8:44 pm
chaniarts wrote:

I'd say shells came first. According to Wikipedia: The Fibonacci sequence is named after Leonardo of Pisa, who was known as Fibonacci. Fibonacci's 1202 book Liber Abaci introduced the sequence to Western European mathematics.
It sounds familiar, but, since you brought it up, How are shells related to the Fibonacci sequence? It surprises me that all shells would have this commonality. I would have expected the kind of variance that you see in the growth rings of trees.
Bill
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• posted on May 20, 2011, 8:50 pm
Bill wrote:

Answering my own question (by copying from Wikipedia):
It is sometimes stated that nautilus shells get wider in the pattern of a golden spiral, and hence are related to both φ and the Fibonacci series. In truth, nautilus shells (and many mollusc shells) exhibit logarithmic spiral growth, but at an angle distinctly different from that of the golden spiral.
Bill
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• posted on May 21, 2011, 5:59 am
wrote in message

As is the Sunflower ...
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"I'm the man who broke the bank at Monte Carlo ..."

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• posted on May 21, 2011, 6:18 am
Lobby Dosser wrote:

You didn't read my other post? Sweeping generalizations like that, sweet as they may be, are often wrong. Can you cite a reference for your claim about the Sunflower?
Bill
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• posted on May 22, 2011, 9:36 am
wrote in message

http://www.popmath.org.uk/rpamaths/rpampages/sunflower.html
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"I'm the man who broke the bank at Monte Carlo ..."

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• posted on May 22, 2011, 12:47 am

Um, y'all have this slightly backward.
It isn't that nature knows advanced math. It is that advanced math is what it takes for humans to describe nature. Fibonacci didn't define a sequence just to amuse college freshmen. He did it to make sense of the way that plants tend to be formed -- one stem, two leaf groupings, three leaf groupings, five petals, eight petals, etc..
Maybe there's a Great Mathematician drawing on the chalkboard. Maybe there's mathematical structure making us imagine a chalkboard. Ether way, it is pretty amazing how things tend to fit/work together.
--
Drew Lawson | Pass the tea and sympathy
| for he good old days are dead
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• posted on May 22, 2011, 1:55 am
On 5/21/2011 7:47 PM, Drew Lawson wrote:

I don't have it backwards, mon ami ... that is exactly what I am in awe of!!
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Last update: 4/15/2010
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• posted on May 20, 2011, 3:49 pm

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• posted on May 13, 2011, 11:47 pm
basilisk wrote:

Heh!
What's a hoot is to watch a cat confront his first cicada. The cat will worry it for a while, then the bug will go opossum.
Almost always, the cat will pick up the insect to carry it god-knows-where for further processing.
The cicada will begin to buzz.
Cat invariable leans back and spits the bug twenty-five feet!
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• posted on May 14, 2011, 3:19 am
On 5/13/2011 7:47 PM, HeyBub wrote:

like popcorn. YUCK !!!!
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• posted on May 14, 2011, 3:36 am

My cat is gobbling them up like hot wings at happy hour.
--

-MIKE-

"Playing is not something I do at night, it's my function in life"
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• posted on May 15, 2011, 6:41 am

Might want to re-assess the dog's diet. Needs more protein & fat! :o)
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"I'm the man who broke the bank at Monte Carlo ..."

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• posted on May 15, 2011, 1:23 pm

No way ... the dog has canine epilepsy, which makes him susceptible to having seizures. He takes Phenobarbitol twice daily to control them and is on a very specialized diet as recommended by his vet. You can second guess the vet's advice all day long, but I'm not changing a thing on this end.
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• posted on May 16, 2011, 5:14 am

Those extra snacks must be playing hell with that diet ...
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"I'm the man who broke the bank at Monte Carlo ..."

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• posted on May 15, 2011, 3:49 pm
"">>"" wrote My dog, on the other hand, has been running around for days, eating them like popcorn. YUCK !!!!
<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Yup. My dog didn't hardly touch her dog food for a month when they were here.
-- Jim in NC
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• posted on May 14, 2011, 4:33 am
wrote:

Part of me wants to say "GO, MOM,GO!"
Part of me wants to wish condolences.
<west coaster
Best wishes on you, either way.
-Zz