Pineapple #20 - a photo on Flickriver

Pineapple #20

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PINEAPPLE & THE MATHEMATICAL FIBONACCI NUMBERS

Pineapple scales or fruitlets or eyes are patterned into spirals.  
Since these scales/fruitlets/eyes are approximately hexagonal in shape, three (3) distinct sets of spirals can be seen on the surface of a mature Pineapple.  

One set of 5 parallel spirals ascends at a shallow angle to the right,  
A second set of 8 parallel spirals ascends more steeply to the left,  
and 
A third set of 13 parallel spirals ascends very steeply to the right. 
 
The numbers 1, 2, 3, 5, 8, 13, 21, 34 etc. are called Fibonacci Numbers where a Fibonacci number is the sum total of the previous 2 Fibonacci Numbers.
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Product Look-Up (PLU) codes, printed on a little sticker on the fruit, for Pineapples are:
5743 = Half
5155 = Small
4029 = Medium
4430 = Large
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This Pineapple was grown from the top of a ripe Pineapple sold in stores, as a part of an experiment.
This was not fed any fertilizer throughout its lifecycle and hence it was sweet and juicy but smaller than its parents.
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Two sides of the vertically cut fully ripe Pineapple.

Ananas comosus
Family Bromeliaceae
The Ghosh Grove, Rockledge, Florida, USA.
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Taken on: February 18, 2012

Tags:

3POINT141

PINEAPPLE

ROCKLEDGE

USA

Bromeliaceae

bromeliad

smooth cayenne

dole

anaras

ananas

ananas comosus « less

Sets appears in: • ALL PINEAPPLES

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Camera: Sony DSC-H9, f/4.0, 1/10 sec, 17.4mm, ISO 100 (more info) (hide info)

Camera:	Sony DSC-H9
Aperture:	f/4.0
Exposure Time:	0.1 sec (1/10)
Focal Length:	17.4mm
ISO:	100
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Center-weighted average
White Balance:	Auto
Sharpness:	Hard
Color Space:	sRGB
Software:	ACD Systems Digital Imaging
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