By Matt DellingerPosted 04.25.2011 at 1:00 pm 8 Comments
Traders used to all buy and sell stocks in the same crowded room. Everyone received information at the same time, and the first guy to shout or signal got the sale. Today, using algorithms that exploit slightly different prices changing at slightly different speeds, and computers connected to exclusive fiber-optic lines that can buy and sell stocks within fractions of a second, high-frequency traders are able to buy low and sell slightly higher in virtually the same instant.
Boosting anemic broadband speeds and wireless networks stuck in
the 20th century
By Adam M. BrightPosted 02.02.2010 at 10:34 am 11 Comments
The U.S. ranks 17th worldwide in broadband access, but not for long—last year's stimulus package allotted $7.2 billion for upgrading our underperforming broadband infrastructure. Our legacy copper wiring just can't carry the data to support HD-video streaming, for instance, and next-gen wireless networks are slower to roll out than in, say, Japan, because of the sheer size of this country. But advances in fiber-optic cables and broadband blimps could bring serious speed increases to homes and smartphones.
This mini telescope captures budding disease in 3-D
By Nicole DyerPosted 03.30.2007 at 2:00 am 0 Comments
Think sports look amazing in high definition? Forget about Derek Jeter's hair follicles-wait until you see the inside of your esophagus, courtesy of the world's first high-def miniature 3-D endoscope. It captures images of tumors and other diseases in unprecedented detail and perspective, an innovation that may help physicians spot trouble they would otherwise have missed.