Edsger Wybe Dijkstra: 1930-2002

John Mahoney writes: “Noted computer scientist Edsger Wybe Dijkstra died on August 6, 2002.” Here’s a link to what looks like a university obituary on Dijkstra and here’s part of what CNET’s News.com had to say about him: “Dijkstra was on the committee that created Algol, the first block-structured programming language and one that introduced many ideas behind Pascal, Basic and C. His practical skills, especially in discerning and coding algorithms, were also remarkable–he wrote the first Algol 60 compiler. Other ideas he invented or helped define include structured programming, stacks, vectors, semaphores, synchronized processes and the notorious deadly embrace–feared by multitasking programmers the world over–where two processes both stop while they wait for each other to continue.”

You call this smart?

I don’t know why everyone’s getting excited about this crow being so smart. First, crows are woeful creatures that like as not’ll ruin my corn crop again this year. They trick Pete into giving them access to the tools — flashing fake badges, or telling Pete he’s needed on another part of the farm “pronto.” Then they harvest, bag and truck off the best of the ears. But that makes them smart? A half-bright bunch of third-graders could fool Pete. When a crow tells the president when the big one’s coming, or picks me the right lotto numbers, then, yeah, that’s pretty smart. But for now I’m just laughing. Hell, I can make bent wire tools.

Silicon storage: That’s a lot of data!

Richard Feynman once said that all the information in all the books in the world could theoretically fit in a cube 1/200th of an inch on a side. Looks like he got it right, says Technology Research News. Reporting on advances in data storage, the magazine says researchers at the University of Wisconsin, Madison have demonstrated the successful use of single silicon atoms to represent the ones and zeroes that are modern data storage. The result, in theory, is the ability to store the equivalent of 7,800 DVDs in one square inch of material. Engineering limitations mean writing atomic bits is impractically slow at the moment. But the Madison work is a realistic analysis of bit stability and recording density, says one scientist who has examined the work.

Europe warns — correctly — of hack attack

The U.S. government Tuesday morning was monitoring attacks against U.S. Internet providers, hours after European authorities warned the FBI that such an onslaught was likely. A spike of data seven times larger than normal was aimed at East Coast ISPs and Web sites beginning about 2 a.m., the Associated Press reports. The attack then shifted to West Coast facilities. Because the campaign emanated from a relatively small number of computers, the targets were generally able to withstand the barrage by filtering data from the offending machines. Just before the data flood began, the FBI issued an extraordinary warning citing “credible but non-specific information that wide-scale hacker attacks” were planned against U.S. Web sites and Internet providers, the AP said. The European tip-off came from Italian authorities. No word on how they knew it was coming.

‘People’s chemist’ dead at 72

Oh, to be as well-regarded and useful as recently departed polymer chemist William Mallow. Mallow, the man credited with inventing clumping cat litter and perfecting Liquid Paper, was remembered this week by family and friends as a scientist with a knack for practicality. In addition to litter and white-out, Mallow worked on the space shuttle’s heat-resistant tiles, developed a way to artificially age Scotch whiskey and improved the rubber skin used on robot dinosaurs at Walt Disney World, Reuters reports.

“He was a people’s chemist,” said Dr. Robert Bass, a colleague at the Southwest Research Institute. While at the institute, Mallow also helped Liquid Paper inventor Bette Nesmith Graham perfect the white goo. (Nesmith Graham, it should be noted, is the mother of former Monkees member Michael Nesmith).

Mallow’s latest project was a military-grade slip-n-slide gel called the Mobility Denial System. Meant to foil attacks on government buildings and control crowds, “it can be sprayed on any surface and causes people to slip and fall and prevents vehicles from getting traction.”

Mallow, a native of Akron, Ohio, died of leukemia at age 72 in a San Antonio hospital on Tuesday, Reuters says.

IBM (hearts) NY

IBM Wednesday opened a sophisticated semiconductor plant in East Fishkill, NY. The $2.5 billion facility is the single biggest capital investment the company has ever made, and presumably reflects an optimism that things will improve for the tech sector generally, and the beleaguered chip business in particular.

The new factory will make processors for everything from videogames and cell phone to mainframe computers. “The plant also will be the first to mass produce circuits thinner than 0.1 micron, or 1,000 times thinner than a human hair,” the Associated Press reports. “The old standard was 0.25 microns, with some chips now at 0.18 microns. The thinner lines, or conduits, allow chips to run faster and use less electricity.”

When it begins normal production next year, the factory is expected to employ about 1,000 East Fishkillers.

Powell to Congress: UUNET could shut down

FCC Chairman Michael Powell sent a good strong scare into lawmakers Tuesday when he testified that WorldCom might be able to shut down its UUNET subsidiary’s Internet backbone without government approval. UUNET is a major component on the Internet, and its loss could potentially have devastating effects, particularly on corporate and government clients.

“Mr. Powell said he was confident in the long-term health of the telecom industry,” the Wall Street Journal reports. “But in the short term, ‘there are question marks’ about whether the FCC can order a bankrupt company’s Internet subsidiary to keep its backbone operational. ‘I could hypothesize that (the company) would refuse to comply.'”

After Powell’s shake-em-up, Senate Commerce Committee Chairman Ernest Hollings, a South Carolina Democrat, said he would introduce legislation to clarify the agency’s authority over Internet-backbone companies like UUNET. The Journal notes that the panel reacted positively to Powell’s request for Congress to strengthen the FCC’s jurisdiction over telecom companies that file for bankruptcy protection, to ensure it can stop them from shutting down essential services.

One plus two equals WOOF!

Dogs, it turns out, are a lot smarter than you thought. Unless you’re a dog, that is. In which case you probably figured you were clever all along. Researchers say they’ve found canines can perform rudimentary math and “speak” by modifying their barks situationally. Not surprisingly, the math trick was discovered using food treats. Shortchange Fido on a Scooby snack and he just knows. Regarding their speaking ability, dogs usually use high-pitched single barks when separated from their owners and a lower, harsher superbark when strangers approach, say the researchers. Playful woofs are high-pitched and unevenly spaced.

Three-way chip deal promises smaller everything

Computer chips have been shrinking for years. But who stops to consider that that’s only been possible because the stuff on the chips, like circuits, transistors and memory have shrunk too? To keep the trend going, Germany’s Infineon has joined Advanced Micro Devices and United Microelectronics Corp. to develop technology to produce the tiny structures needed inside chips. As the number of elements on a chip doubles approximately every year, “chipmakers are under pressure to develop new microelements to fit on (them),” Reuters reports. Currently, the size of the smallest element on a chip is 130nm. The three-way alliance will focus on developing a 65nm and 45nm manufacturing process.

Attention passengers, this is your car

David Hasselhoff would be proud. Under a deal signed with IBM, future models of the Honda Accord will let drivers talk to their car’s computer to locate nearby gas stations and restaurants. Better still, the car will answer back, using its stereo system to provide driving directions. The voice recognition system is based on Big Blue’s ViaVoice product, which the company says understands different speech accents and has a large vocabulary.

Come fly with me

Boeing has joined a small group of technology bigwigs trying to test a theory that would let engineers negate some of the effects of gravity. The American aerospace giant is using the work of controversial Russian scientist Yevgeny Podkletnov, who claims to have developed a device that can shield objects from the Earth’s pull. Other researchers claim Podkletnov’s work is hokum, but considering the cost savings such a device would represent for air travel, Boeing seems intent on getting to the bottom of it all. The Russian says he found that objects above a superconducting ceramic disc rotating over powerful electromagnets lost weight, the BBC reports. “The reduction in gravity was small, about 2 percent, but the implications — for example, in terms of cutting the energy needed for a plane to fly — were immense.”

Slice that DNA carefully

The genome of the pufferfish, a Japanese delicacy, is teaching researchers about the more complex genetic makeup of humans. The pufferfish, or Fugu, has about the same number of genes as humans, but without most of the repetitive “junk” DNA found in naked apes, researchers at the Joint Genome Institute in Walnut Creek, California, report. Fugu can pack a lethal tetrodotoxin whallop, but manages to do so with the smallest genome of any vertebrate. The findings were detailed in the journal Science and reported on by the Associated Press.

What a waste … of calamari

City work crews were busy Friday cleaning up 12 tons of dead and dying squid after what looks to have been the largest mass beaching of the rubbery mollusks in a century. Scientists say the squid were likely following prey, maybe grunion, when they ventured into the shallow waters off La Jolla Cove, California, and were washed up on shore. Locals were freaked. “It was just unbelievable,” Bill Halsey, 26, told Reuters. “They made these strange noises like a dolphin or a seal as they were dying.” Added Clif Williams: “The thing that weirds me out about the squid is that they have humanlike eyeballs.” The jumbo flying squid, aka Dosidicus gigas, usually call the eastern Pacific Ocean home, but have been turning up on beaches from Orange County to the Mexican Border. Researchers think warm water currents associated with El Nino are drawing the suckers north.

Congo town gets volcano double-whammy

Goma, a town in eastern Congo, has been hit with a volcano spurting molten rock 100 meters in the air, just a few months after a separate volcano devastated the area. “It was something like an explosion of the sun,” Dario Tedesco, a volcano consultant to the United Nations, told Reuters. “It was really spectacular, it was glowing everywhere, the sky was red, you could see the lava coming up from the fissure.” In January another volcano razed much of Goma, and researchers say they’re worried that hothead could blow again. According to the wire service, the winter eruption forced tens of thousands of people to flee into neighboring Rwanda — something few rational people would do by choice. Vulcanologists say the pool of molten rock bubbling in a 1.2-km wide crater at the top of the January volcano had risen rapidly in the last two weeks, but that it is devilishly hard to judge how much risk it poses.

Incidentally, the Granular Volcano Group runs a Web site that explains the physics behind much of a volcano’s activity. It’s a little math-heavy, but you can watch some neato supercomputer simulations of different kinds of gas clouds and debris flows.