Hi,

I've been looking into Fibonacci numbers in relation to pinecones.

Here's a photo I took and edited in Paint Shop Pro :

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{"name":"609364","src":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/c\/8\/c8bab55c79a01a20b42e771389d25e22.png","w":400,"h":584,"tn":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/c\/8\/c8bab55c79a01a20b42e771389d25e22"}

Reading about these pinecones and the way in which there are 8 spirals of one kind and 13 of another (8 & 13 are Fibonacci numbers BTW) being to do with the growth angle.

I'd like to know what mathematicians mean when they say growth angle.

I think it's to do with the initial angle at which the individual bits of the pinecone grow outwards at the point where they come out from the centre.

Can anyone offer any links or answer this?

Thanks Siege. Thanks a lot, that's something to go on.