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Old 07-19-2008, 10:07 PM   #1
eI7iqNot

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Default Botanical Mathematical problem...
I got this from someone where i work and was wondering if anyone had any thoughts. Thanks...
Hi there, we are a group of students and Alum who are working on a curious botanical-mathematical problem. We are trying to approximately model the bend of a flower stem in varying positions, and our instincts are it must be bent along the smooth curve of some logarithm-like function perhaps, but we are no experts. We were wondering if you could lend any help or guidance in the matter towards finding a very simple formula to describe this natural bending of a fibrous line object, such as a plant stem. Any and all help or referral or direction is appreciated greatly! Thank you for your time. Sincerely, Scott
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Old 07-19-2008, 10:51 PM   #2
jamisi

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I seem to recall that a lot of curves in nature are based on some formula that was figured out by seeing how a nautilus shell grows, and it is like 1 to .61 when extrapolated out to 2 dimensions.

It is a number that ends up being used in a lot of architecture, ie a pleasing length vs height of a temple etc in ancient times

This may not be what you are looking for, but does it ring a bell with anyone else?
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Old 07-19-2008, 11:21 PM   #3
fkisjjdhh

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Quote:
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Old 07-20-2008, 12:21 AM   #4
sueplydup

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Everyone is right, and I'm a little embarrassed to be linking to this as a source, but it's not a bad outline of what I believe you're looking for. It's almost impossible to create anything displeasing to the eye if you keep these lines and points in the back of your mind:

http://en.wikipedia.org/wiki/Golden_spiral
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Old 07-20-2008, 04:43 AM   #5
googlopharm

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I make golden spirals in the snow in winter! No math involved in that and as natural a curve as ever.

-Steve Jobs (Ernie)
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Old 07-20-2008, 05:05 AM   #6
Filmania

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^Hahahahaha......
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