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Why Computers Suck At Mathantdude writes "This TechRadar article explains why computers suck at math, and how simple calculations can be a matter of life and death, like in the case of a Patriot defense system failing to take down a Scud missile attack: 'The calculation of where to look for confirmation of an incoming missile requires knowledge of the system time, which is stored as the number of 0.1-second ticks since the system was started up. Unfortunately, 0.1 seconds cannot be expressed accurately as a binary number, so when it's shoehorned into a 24-bit register — as used in the Patriot system — it's out by a tiny amount. But all these tiny amounts add up. At the time of the missile attack, the system had been running for about 100 hours, or 3,600,000 ticks to be more specific. Multiplying this count by the tiny error led to a total error of 0.3433 seconds, during which time the Scud missile would cover 687m. The radar looked in the wrong place to receive a confirmation and saw no target. Acco
Slashdot Saturday, October 31, 2009Gamers: Dream Your Way to a Better Score?
Studies suggest dreaming and learning are intertwined.
ABC News Saturday, October 31, 2009Is The Desktop PC Doomed?
The rise of Web-based apps, virtualization, and a crop of powerful mobile devices have the traditional PC desktop on the run.
Information Week Saturday, October 31, 2009Asus Motherboards Support USB 3.0 Performance
Asus unveils the Xtreme design series of motherboards featuring Hybrid Processors, Hybrid Phase technology and Hybrid OS and boasting full USB 3.0 and SATA 6G-bps data throughput performance. - Asus' latest family of enhanced motherboards, announced this week, delivers USB 3.0 and SATA 6G-bps data throughput performance, featuring Hybrid Technology Hybrid Processor, Hybrid Phase and Hybrid OS designed to enhance performance and provide active cooling and faster online access. The Asus...
eWEEK Saturday, October 31, 2009Einstein Still Rules Despite New Theories
NASA's Fermi Gamma Ray Space Telescope is giving scientists an increasingly detailed look at the extreme universe, including rare experimental evidence about the very structure of space and time. Despite the many new theories of space-time, Albert Einstein's original theory is still standing. - Score one for Albert Einstein. In May, NASA's Fermi Gamma Ray Space Telescope and other satellites spotted a short gamma ray burst, an explosion that astronomers think happens when neutron stars collide. NASA scientists calculated the explosion took place in a galaxy 7.3 billion light-years away...
eWEEK Saturday, October 31, 2009Legend of Zelda dungeons fit together like a big puzzle
In 1986, I spent a few weekends sneaking into the living room of my best friend’s house at the crack of dawn, to get an ephemeral couple of hours in with his gilded cartridge of The Legend of Zelda before the family woke up, who were always blearily surprised to see me. Since he and [...]
Geek.com Saturday, October 31, 2009The Internet: 40 Years of Breathtaking Innovation
What has become the internet was started 40 years ago when computer scientists at UCLA made the first host-to-host connection to the Stanford Research Institute. From there, there's been no looking back. - It was October 1969 and Paul McCartney was not dead. He even said so in a press conference. The 100-to-1 shot New York Mets won the World Series. The cold war between Russia and the U.S. was anything but with nuclear testing continuing unabated by both sides. The U.S. though, was riding high in...
eWEEK Saturday, October 31, 2009Ex-MySpace CEO wants to gamble on social games
Sources say that in Chris DeWolfe's new venture, he'll attempt to snowball a bunch of social-gaming properties and pit himself against industry leader Mark Pincus of Zynga.
CNET Saturday, October 31, 2009Controlling Games and Apps Through Muscle Sensors
A team with members from Microsoft, the University of Toronto, and the University of Washington have developed an interface that uses electrodes to monitor muscle signals and translate those into commands or button presses, allowing a user to bypass a physical input device and even control a game or application while their hands are full. The video demonstration shows somebody playing Guitar Hero by making strumming motions and tapping his fingers together, a jogger changing his music without having to touch the device, and a man flexing a muscle to open the trunk of his car while he carries objects in both hands. The academic paper (PDF) is available online.Read more of this story at Slashdot.
Slashdot Saturday, October 31, 2009Moon-Excavation Robots Face Off
avishere writes "Student teams designed and built robotic power-lifters to excavate simulated lunar soil (a.k.a. 'regolith') earlier this month, with $750,000 in prizes up for grabs. Excavating regolith, according to NASA, will be an important part of any construction projects or processing of natural resources on the Moon. Interestingly, regolith is especially difficult to dig because its dust particles want to stick together. The whole robotic system has to be sturdy enough to scoop moon dirt and powerful enough to move through the dust while still meeting the weight requirements. The winning excavator from Worcester Polytechnic Institute in Massachusetts lifted 1,103 pounds within the allotted time, and got a sweet $500,000 for their troubles."Read more of this story at Slashdot.
Slashdot Saturday, October 31, 20091 2 3 4
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