The Mathematics of Life

9 05 2007

The Mathematical Lives of Plants

Julie J. Rehmeyer

The seeds of a sunflower, the spines of a cactus, and the bracts of a pine cone all grow in whirling spiral patterns. Remarkable for their complexity and beauty, they also show consistent mathematical patterns that scientists have been striving to understand.

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Each yellow nub in the center of this daisy is actually its own miniature flower, complete with a full set of reproductive organs. The buds form interlocking clockwise and counterclockwise spirals.
Scott Hotton

A surprising number of plants have spiral patterns in which each leaf, seed, or other structure follows the next at a particular angle called the golden angle. The golden angle is about 137.5º. Two radii of a circle C form the golden angle if they divide the circle into two areas A and B so that A/B = B/C.

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Wikipedia breaks into U.S. Top 10 Sites

19 02 2007

Wikimedia Foundation Inc.’s popular

Wikipedia

online encyclopedia cracked the top ten list of most popular Web sites in the U.S. for the first time in January, according to comScore Networks Inc.
Wikipedia sites ranked ninth with 42.9 million unique visitors last month, ahead of the sites from The New York Times (number 10), Apple Inc. (number 11) and Viacom International Inc. (number 12), comScore reported Thursday.

Wikipedia, which already ranked in the top ten list of most popular Web sites globally, has been quickly gaining popularity in the U.S., where its parent company, the non-profit Wikimedia Foundation, is based.

In January of last year, Wikipedia sites ranked in the 33rd spot with 18.3 million unique visitors. By July, it had climbed to the 18th spot on the list with 28.1 million unique visitors, and in November it ranked 12th with 39.1 million unique visitors, according to comScore.

In doing its tally for Wikipedia, comScore also counts visits to other Wikimedia sites, like Wiktionary, Wikiquote, Wikibooks and Wikinews, but most of the traffic comes from the Wikipedia encyclopedias, a comScore spokesman said.

Wikipedia started in January 2001 with its English-language site, which currently has more than 1.6 million articles. The Wikipedia project has since grown significantly and has more than 5 million articles in more than 200 languages, according to WikiMedia. Access to Wikipedia is free. Volunteers contribute the encyclopedia’s content, which can be edited by anyone accessing the sites.

Globally, Wikipedia sites ranked sixth in December with almost 165 million unique visitors, according to comScore.

source:

http://news.yahoo.com/s/pcworld/20070217/tc_pcworld/129135





GOODBYE HARRY POTTER.

8 02 2007

Section: Diary

from http://www.jkrowling.com/textonly/en/ 

FEBRUARY 6th

Charles Dickens put it better than I ever could:

‘It would concern the reader little, perhaps, to know how sorrowfully the pen is laid down at the close of a two-years’ imaginative task; or how an Author feels as if he were dismissing some portion of himself into the shadowy world, when a crowd of the creatures of his brain are going from him for ever.’

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Disposable organizers, conversions, formulas and SUDOKU!!! http://www.pocketmod.com/

3 02 2007

What is a PocketMod?

The PocketMod is a new way to keep yourself organized. Lets face it, PDAs are too expensive and cumbersome, and organizers are bulky and hard to carry around. Nothing beats a folded up piece of paper. That is until now. With the PocketMod, you can carry around the days notes, keep them organized in any way you wish, then easily transfer the notes to your PDA, spreadsheet, or planner.

The PocketMod is a small book with guides on each page. These guides or templates, combined with a unique folding style, enable a normal piece of paper to become the ultimate note card. It is hard to describe just how incredibly useful the PocketMod is. It’s best that you just dive in

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Pop Art Inspired by Lichtenstein

1 02 2007

source: http://www.melissaclifton.com/tutorial-popart.html

 

Drowning Girl Roy Lichtenstein 1963If you are a fan of pop art then you’re probably already well acquainted with the work Roy Lichtenstein. Roy Lichtenstein became one of the leading pop artists of the sixties with his comic-strip paintings. Drowning Girl 1963, shown left, is one of his better known works and is a good example of the design features in his most famous pieces. Notice the thick lines, bold colors, and thought bubble. His work also often included boxed captions and words such as “WHAAM!”, commonly found in comic books.

Benday dots were Lichtenstein’s trademark. Benday dots are a printing process which combines two (or more) different small, coloured dots to create a third colour. Back in the day, pulp comic books used benday dots in primary colours to inexpensively create the secondary colours such as flesh tone.

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66 Successful Bloggers and What they can teach you

25 01 2007

Here’s the list.

1. Seth Godin – will teach you what kinds of blogs there are.

2. Bob Cragill – will teach you the value of blogging.

3. Julie Woods – will teach you why companies should monitor blogs

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Make XP run faster! 10

20 01 2007

1. Disable Indexing Services

Indexing Services is a small little program that uses large amounts of RAM and can often make a computer endlessly loud and noisy. This system process indexes and updates lists of all the files that are on your computer. It does this so that when you do a search for something on your computer, it will search faster by scanning the index lists. If you don’t search your computer often, or even if you do search often, this system service is completely unnecessary. To disable do the following:

  • Go to Start
  • Click Settings
  • Click Control Panel
  • Double-click Add/Remove Programs
  • Click the Add/Remove Window Components
  • Uncheck the Indexing services
  • Click Next

2. Optimise Display Settings

Windows XP can look sexy but displaying all the visual items can waste system resources. To optimise:

  • Go to Start
  • Click Settings
  • Click Control Panel
  • Click System
  • Click Advanced tab
  • In the Performance tab click Settings
  • Leave only the following ticked:
  • Show shadows under menus
  • Show shadows under mouse pointer
  • Show translucent selection rectangle
  • Use drop shadows for icons labels on the desktop
  • Use visual styles on windows and buttons

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