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Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3]

Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3]

http://www.youtube.com/watch?v=ahXIMUkSXX0

Michelle Jenneke 'Creeper' Is Everyone On The Internet Right Now While the innocence of 19-year-old Australian hurdler Michelle Jenneke's warm-up routine is debatable, there's no two ways about the slow-motion re-cut of it that went viral last week. Yes, her milkshake brought all the boys to the Web. And now that collective leer has its own avatar: the Creeper. Digitom Productions posted a spoof in which a lad (that's Canadian for "bro," right?) Muslim rule and compass: the magic of Islamic geometric design To paraphrase Monty Python, what has Islam ever done for us? You know, apart from the algebra, the trigonometry, the optics, the astronomy and the many other scientific advances and inventions of the Islamic Golden Age. Well, if you like art and interiors, there’s always the stunning patterns that grace mosques, madrasas and palaces around the world. Islamic craftsmen and artists – who were prohibited from making representations of people in holy sites – developed an instantly recognizable aesthetic based on repeated geometrical shapes. The mathematical elegance of these designs is that no matter how elaborate they are, they are always based on grids constructed using only a ruler and a pair of compasses.

Johnny Carson Upload Subscription preferences Loading... Il pentagono tra geometria ed arte Alchimia, biologia, esoterismo e matematica. Tutti mescolati dentro un grande calderone di forma pentagonale, una figura che da millenni è stata caricata di ogni simbolismo possibile. Ma non è un caso: il pentagono, infatti, presenta delle proporzioni molto particolari che hanno solleticato l’immaginazione di filosofi, artisti e scienziati. Parlo della sezione aurea, la divisione di un segmento in due parti in modo tale da ottenerne una porzione che sia media proporzionale tra l’intero segmento e la parte restante. Osservate il segmento AB; ebbene, esiste un solo punto C tale che il rapporto che c’è tra l’intero segmento e il tratto AC sia uguale a quello tra AC e la parte restante. Dunque AC è la sezione aurea di AB.

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