"Heliotropism
A common misconception is that sunflowers track the sun.[7] In fact, mature flowerheads typically face east and do not move. The leaves and buds of young sunflowers do exhibit heliotropism (sun turning). Their orientation changes from east to west during the course of a day.[8] The movements become a circadian response and when plants are rotated 180 degrees, the old response pattern is still followed for a few days, with leaf orientation changing from west to east instead.[9] The leaf and flowerhead bud phototropism occurs while the leaf petioles and stems are still actively growing, but once mature, the movements stop. These movements involve the petioles bending or twisting during the day then unbending or untwisting at night."
"Mathematical model of floret arrangement
A model for the pattern of florets in the head of a sunflower was proposed by H. Vogel in 1979.[18]This is expressed in polar coordinates
where θ is the angle, r is the radius or distance from the center, and n is the index number of the floret and c is a constant scaling factor. It is a form of Fermat's spiral. The angle 137.5° is related to the golden ratio (55/144 of a circular angle, where 55 and 144 are Fibonacci numbers) and gives a close packing of florets. This model has been used to produce computer graphics representations of sunflowers.[19]"
All this mathematics...does it look to you like BLIND EVOLUTION?
Or GENETIC ENGINEERING...from above...and outside Earth?
:)
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Happy Blue Monday! (meme)
Please visit: http://smilingsally.blogspot.com/
My husband and I were fascinated when we traveled to Italy and saw the many fields of sunflowers. Thanks for sharing your blues.
ReplyDeleteHappy Blue Monday, Dorin.
That is beautiful:)
ReplyDeleteVisiting for Blue Monday! Here's my share-hope you can stop by:)
http://www.mommys4seasonsjourney.com/2012/01/mango-juice-and-strawberry-banana-smoothies.html
Beautiful! thanks for sharing Joann
ReplyDeleteBeautiful.
ReplyDeletePlease come and see my Blue, have a great week!