nareshkumargs

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sciencenote:

The head of a flower is made up of small seeds which are produced at the center, and then migrate towards the outside to fill eventually all the space (as for the sunflower but on a much smaller level). Each new seed appears at a certain angle in relation to the preceeding one. For example, if the angle is 90 degrees, that is 1/4 of a turn.
…This angle has to be chosen very precisely: variations of 1/10 of a degree destroy completely the optimization. When the angle is exactly the golden mean, and only this one, two families of spirals (one in each direction) are then visible: their numbers correspond to the numerator and denominator of 2 consecutive numbers in the Fibonacci sequence, which is proved to converge toward the Golden Mean value of 1.6180339… (in the picture we have 21/34, the 7th and 8th terms of the Fibonacci sequence).
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, although the sequence had been described earlier in Indian mathematics. (By modern convention, the sequence begins either with F0 = 0 or with F1 = 1. The Liber Abaci began the sequence with F1 = 1, without an initial 0.)

Laser Cut Street Map Videos

CutMaps is an Etsy store which creates intricate mountable street maps cut from boards and framed. Here are two videos showing the process in action:

Cut Maps are laser cut street maps of the world’s most famous and recognizable cities. These maps are cut from high quality recycled mounting board and framed. You may choose any color combination you wish.

More at CutMaps here

1,470 notes | 5 months ago

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theclassyissue:

abikiniaday For TheClassyIssue
More to come!

experimentsinmotion:

Everything Must Be In Motion

Our website, designed by Projects Projects, features a tiling looping GIF by illustrator and genius GIF maker Santtu Mustonen. Above are four versions in black - we recommend viewing this post on our website for the full effect.

2,754 notes | 5 months ago