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Friday, October 20 2017 @ 02:52 AM EDT
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From Boing Boing:Mathematics of botanical beauty

General NewsDavid Pescovitz: Researchers are beginning to understand why some plants have beautiful repeating spiral patterns to their structures that incorporate the so-called golden angle (approx 137.5 degrees). Math buffs, artists, and mystics will appreciate that the golden angle is related to the golden ratio, also known as the "divine proportion," that frequently appears in aesthetically-pleasing forms. From Science News (photo by Scott Hotton):  Articles 20070505 F8430 1261 Plants with spiral patterns related to the golden angle also display another curious mathematical property. The seeds of a flower head form interlocking spirals in both clockwise and counterclockwise directions. The number of clockwise spirals differs from the number of counterclockwise spirals, and these two numbers are called the plant's parastichy numbers (pronounced pi-RAS-tik-ee or PEHR-us-tik-ee).

These numbers have a remarkable consistency. They are almost always two consecutive Fibonacci numbers, which are another one of nature's mathematical favorites. The Fibonacci numbers form the sequence 1, 1, 2, 3, 5, 8, 13, 21 . . . , in which each number is the sum of the previous two...

Initially, researchers thought these patterns might provide an evolutionary advantage by somehow promoting plants' survival. But more recently, they have come to believe that the answer lies in the biochemistry of plants as they develop new leaves, flowers, or other structures.
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Did you know that Eugene Curran Kelly was born on August 23, 1912 in Pittsburgh, PA, the third of five children. Yes, that Gene Kelly.


 

Ó Corráin, Corran, Curren, Currans, Currane, Curreen, Kirrane, O’ Corrin, O’Currane, O’Corren, Corrin

The Curran name, and its variations, are popular throughout Ireland, most particularly in county Donegal in the northern province of Ulster. The name comes from the Gaelic word “corradh” meaning ‘spear’. One of the most famous Irish Currans was John Philpot Curran, a barrister and a nationalist, whose daughter was engaged to Robert Emmett.


 

From Kenneth: The surname Curran appears to be patronymical in origin, and is believed to be associated with the Irish, meaning,"Grandson of Corran", a diminitive of "Coiradh (spear). Different spellings of the same name original surname are a common occurrence. Dictionaries of surnames indicate probable spelling variations of Curran to be Corran, Currane, Kirrane, Curreen, O'Currin, Curren,and Coiradh. Although bearers of the old and distinguished Curran name comprise a small fraction of the population, there are a number who have established for it a significant place in history.

They include: Simon Curran(O'Currin) (d.1302), Bishop of Kiljenora,Ireland.

Charles Courtney Curran (1861-1942) American painter of "perfume of the Rose", still hanging in the National Gallery of Art in Washington, D.C., "The Breezy Day"' in Philadelphia, and "Mountain Laurel."

John Philpot Curran (1750-1817) Irish orator and Judge who was a member of the Irish Parliament in 1783.

John Joseph Curran (1859-1936) ordained a priest in 1887, he spent the rest of his life as Curate and Pastor in the coal-mining area of Pennsylvania. He became famous for his support of miners and thier unions.

Amelia Curran(d.1847) She practiced painting only as an amateur, and her portrait of Percy Bysshe Shelly was exhibited in the National Portrait Exhibition in 1868.

Pearl Gildessleeve Curran (1875-1941) American composer who published about forty songs, many of them to her own texts. Her most successful works include," Dawn". "Life", "Rain", "Nursery Rhymes", and "Nocturne."
 

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