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Supercomputing

Submission + - World's first Quantum Computer to be demoed

Leemeng writes: "EE Times reports that D-Wave will demonstrate the world's first commercial quantum computer on Tuesday (Feb 13) at the Computer History Museum in Mountain View, Calif. If it works, that means it can solve some of the most difficult problems, called NP-complete problems, thousands of times faster than current supercomputers. Initially, D-Wave (Vancouver, B.C.) will lease time on its quantum computer, which will be accessed over a secure Internet connection. Eventually, the company plans to sell quantum computer systems.

Being able to quickly solve NP-complete problems has enormous consequences. A fairly well-known NP-complete problem is the travelling salesman problem, which has real-world implications for logistics. NP-complete problems are present in such diverse fields as medicine, biology, computing, mathematics, and finance. Of immediate concern is quantum computers' potential for cryptanalysis (codebreaking). Specifically, a quantum computer could factor very large numbers in a fraction of the time needed by current computers. That BTW, is just what you need for cracking the RSA cipher and other widely-used ciphers that depend on one-way mathematical functions. Perhaps this will light a fire under quantum cryptography efforts."
Math

Journal Journal: The math behind "beer goggles" 2

Researchers at Manchester University, among others, have discovered a mathematical formula for calculating the "beer goggles effect" (where people look more attractive after a few beers).

The factors are: how drunk you are, how dark the room is, your eye-sight, the amount of smoke in the air, and how far you are from your "target" (which also explains all those "good from far but far from good" sightings).

Programming

Submission + - Teaching children to write software?

Desmond Elliott writes: "I recently worked on a piece of software for an undergraduate course which involved me writing a Sudoku game using the GWT. My youngest sister (9 years old) was fascinated to know how I had done it and seems quite keen to want to know more. I know that some people say that children and fickle at that age but I'm keen to let her have the resources that she needs to learn more about programming if she wants to. Does anybody know about any good resources for children to learn more about Java?"

RFID Passports Raise Safety Concerns 459

CurtMonash writes "CNNMoney.com features a skeptical article about the US State Department's plans to soon issue RFID passports (currently being tested on State Department employees). One fear is that they can be hacked for information about you. And even if they can't, carrying around a little transmitter saying 'I'm an American! I'm an American!' isn't a fun and safe thing to do in all parts of the world." From the article: "Basically, you've given everybody a little radio-frequency doodad that silently declares 'Hey, I'm a foreigner,' says author and futurist Bruce Sterling, who lectures on the future of RFID technology. 'If nobody bothers to listen, great. If people figure out they can listen to passport IDs, there will be a lot of strange and inventive ways to exploit that for criminal purposes.'"

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