By timothy from Slashdot's faster-than-you-can-read department
The L.A. Times has a short but compelling article about the state of the art (and coming state of the art) in dedicated networking technology in one of the applications where you'd expect the customers to care most about it: connecting financial trading centers. Milliseconds count, and the traders count milliseconds. From the article, one example:"[New York-based networking company] Strike, whose ranks include academics as well as former U.S. and Israeli military engineers, hoisted a 6-foot white dish on a tower rising 280 feet above the Nasdaq Stock Market's data center in Carteret, N.J., just outside New York City.
Through a series of microwave towers, the dish beams market data 734 miles to the Chicago Mercantile Exchange's computer warehouse in Aurora, Ill., in 4.13 milliseconds, or about 95% of the theoretical speed of light, according to the company. Fiber-optic cables, which are made up of long strands of glass, carry data at roughly 65% of light speed."Read Replies (0)
By timothy from Slashdot's now-just-reconstruct-his-time-machine department
Hugh Pickens DOT Com writes "Kurt Anderson has an interesting read at Vanity Fair about Dutch painter Jan Vermeer, best known for "Girl with a Pearl Earring," and the search for how he was able to achieve his photo-realistic effects in the 1600s. Considered almost as mysterious and unfathomable as Shakespeare in literature, Vermeer at age 21, with no recorded training as an apprentice, began painting masterful, singular, uncannily realistic pictures of light-filled rooms and ethereal young women. "Despite occasional speculation over the years that an optical device somehow enabled Vermeer to paint his pictures, the art-history establishment has remained adamant in its romantic conviction: maybe he was inspired somehow by lens-projected images, but his only exceptional tool for making art was his astounding eye, his otherworldly genius," says Anderson. To try to learn how Vermeer was able to achieve such highly realistic painting, American inventor and millionaire Tim Jenison spent five years learning how to make lenses himself using 17th-century techniques, mixed and painted only with pigments available in the late 1600s and even constructed a life-size reproduction of Vermeer's room with wooden beams, checkerboard floor, and plastered walls. The result has been a documentary movie, "Tim's Vermeer," by magicians Penn & Teller that may have resolved the riddle and explains why it has remained a secret for so long. "The photorealistic painters of our time, none of them share their techniques," says Teller. "The Spiderman people aren't talking to the Avatar people. When [David] Copperfield and I have lunch, we aren't giving away absolutely everything.""Read Replies (0)
By timothy from Slashdot's hard-to-cook-without-pots department
New submitter TheRealHocusLocus writes "The FCC is drafting rules to formalize the process of transition of 'last-mile' subscriber circuits to digital IP-based data streams. The move is lauded by AT&T Chairman Tom Wheeler who claims that significant resources are spent to maintain 'legacy' POTS service, though some 100 million still use it. POTS, or 'Plain Old Telephone Service,' is the analog standard that allows the use of simple unpowered phone devices on the wire, with the phone company supplying ring and talk voltage. I cannot fault progress, in fact I'm part of the problem: I gave up my dial tone a couple years ago because I needed cell and could not afford to keep both. But what concerns me is, are we poised to dismantle systems that are capable of standing alone to keep communities and regions 'in-touch' with each other, in favor of systems that rely on centralized (and distant) points of failure? Despite its analog limitations POTS switches have enforced the use of hard-coded local exchanges and equipment that will faithfully complete local calls even if its network connections are down. But do these IP phones deliver the same promise? For that matter, is any single local cell tower isolated from its parent network of use to anyone at all? I have had a difficult time finding answers to this question, and would love savvy Slashdot folks to weigh in: In a disaster that isolates the community from outside or partitions the country's connectivity — aside from local Plain Old Telephone Service, how many IP and cell phones would continue to function?"Read Replies (0)