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Post by hals balls on May 11, 2010 23:07:43 GMT -8
Looking, Listening, Thinking, Remembering, Working, ... Evolving patterns on this molecular processor mimic patterns displayed by the human brain. Anirban Bandyopadhyay image.
Lessons from the Brain: Toward an Intelligent Molecular Computer Last Modified 10:43 AM, April 26, 2010 The researchers made their different kind of computer with DDQ, a hexagonal molecule made of nitrogen, oxygen, chlorine and carbon that self-assembles in two layers on a gold substrate. The DDQ molecule can switch among four conducting states—0, 1, 2 and 3—unlike the binary switches—0 and 1—used by digital computers.Massively parallel computing on an organic molecular layer Nature Physics 6, 369 - 375 (2010), Published online: 25 April 2010 www.nature.com/nphys/journal/v6/n5/full/nphys1636.html
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Post by anubis on May 13, 2010 21:31:22 GMT -8
wow from binary to quadratic - the implications are huge! i wonder when they will be able to sample and digitize our mind and store it permanently in a computer. the stuff of nightmares perhaps. with power comes great responsibility and our track record is not peerless.
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Post by clone on Jun 5, 2011 19:38:16 GMT -8
See-saw logic gates make DNA computing easier 19:00 02 June 2011 The pair used these gates to build a circuit that calculates the square roots of 0, 1, 4 and 9. It is made from 130 DNA strands, the largest ever built in a single test tube. "This in itself isn't the achievement – rather it is a kind of confirmation of the principles our designs are based on," says Winfree. "If one can get a circuit to do something so arbitrary and alien to chemistry as computing the discrete square root, then probably one can get DNA circuits to do anything." www.newscientist.com/article/dn20539-seesaw-logic-gates-make-dna-computing-easier.html
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Post by turing centenary on Jun 28, 2012 12:19:53 GMT -8
2012 The Alan Turing Year A Centenary Celebration of the Life and Work of Alan Turing www.mathcomp.leeds.ac.uk/turing2012/22 June 2012 Last updated at 01:50 Alan Turing: Gay codebreaker's defiance keeps memory alive www.bbc.co.uk/news/technology-18350956- cracking Enigma - the modern computer - the stored program concept - the universal Turing machine, 1936 - theoretical biology - morphogenesis Details of Turing's codebreaking activities at Bletchley Park were not disclosed until the 1970s. Alan Mathison Turing (23 June 1912 – 7 June 1954) was an English mathematician, logician, cryptanalyst, and computer scientist. Turing's Sunflowers Since March, we’ve been growing sunflowers for a mass citizen science experiment as part of Alan Turing’s Centenary celebrations. With your help we hope to solve the mathematical riddle that Turing worked on before his death. Alan Turing, perhaps best known for helping crack the Enigma Code during WW2, was fascinated by how maths works in nature. The spirals of seeds in sunflower heads often follow a special pattern of numbers called the Fibonacci sequence. Turing noticed that the Fibonacci sequence often occurred in sunflower seed heads. He hoped that by studying sunflowers it might help us understand how plants grow, but he died before he could finish his work. www.manchestersciencefestival.com/connect/getinvolved/sunflowersFor regular updates and to find out more about the experiment visit our dedicated website, www.turingsunflowers.com/
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