FROM THE TRENCHES: A new study by Rice University suggests bioengineers may be able to create the mechanical stimulation needed to grow bone outside the body. The trick appears to be stressing the sample out — literally. In the absence of mechanical stress, lab grown bone is brittle and thin. But when created under proper conditions, it emerges thick and well-developed.
If a code is really good, it doesn’t matter much if the enemy (you know, them) gets ahold of one of your encrypted messages. What is risky, is letting your code key fall into the wrong hands. And their delivery is often the weak link in a communications network. “At the moment, highly secure encryption keys are typically sent by a man on a motorbike or a guy with a diplomatic bag,” notes one wonk. But researchers have devised a way to deliver keys using a beam of light, attaching data to individual photons as they stream from sender to receiver. The neat thing about that is if the light beam is intercepted and read, the state of the photons changes, alerting the recipient that the key has been compromised. Thursday British researchers said they’d reached a new milestone in the distance they can send encryption keys this way: 14 miles. It doesn’t sound like much, but it sure beats the few feet the technique could muster just a couple years ago. Expect earth-to-satellite distances soon.
The late, great jazz bandleader — and self-proclaimed cosmic refugee from Saturn — Sun Ra would be awfully proud. Tomorrow marks the beginning of World Space Week. Brought to you by those black-helicopter-flying folks over at the United Nations General Assembly, the seven-day stretch commemorates the October 4, 1957 launch of Sputnik I and the October 10, 1967 signing of the noble but unwieldy titled document, “Treaty on Principles Governing the Activities of States in the Exploration and Peaceful Uses of Outer Space, including the Moon and Other Celestial Bodies.” In related news, from October 4-6, M.I.T. holds a three-day MarsWeek 2002.
No red, no white, but plenty of blue. That’s the strange ? make that straight-up freaky ? but true story of a sexagenarian Montana Congressional candidate who managed to permanently turn his own skin the color of the sea. The Associated Press reports that back in 1999, Stan Jones, a business consultant and part-time college instructor currently running for U.S. Senate under the Libertarian Party banner, began brewing and drinking a homemade colloidal silver potion. He did this, the wire service notes, because he feared a Y2K-related shortage of antibiotics. He apparently did not anticipate one side effect: his epidermis becoming a primary color….ScienceBlog bonus historical precedent: the famous Blue People of Kentucky.
New Scientist reports on a year-long study to find the world’s funniest joke. The Internet-based project was coordinated by psychologist Richard Wiseman and colleagues at the University of Hertfordshire, U.K. and involved more than 2 million votes on 40,000 submissions. The goal was to identify universal aspects to humor, which could one day allow computers to devise truly funny jokes. Before we get to the winner, an interesting aside is that the team found in the process the world’s funniest animal: the duck. “If you’re going to tell a joke involving an animal, make it a duck,” Wiseman says. Now to the ultimate rib-tickler, which folks from Asia to Africa, the States to Siberia all seemed to enjoy. A couple of New Jersey hunters are out in the woods when one of them falls to the ground. He doesn’t seem to be breathing, his eyes are rolled back in his head. The other guy whips out his cell phone and calls the emergency services. He gasps to the operator: “My friend is dead! What can I do?” The operator, in a calm soothing voice, says: “Just take it easy. I can help. First, let’s make sure he’s dead.” There is a silence, then a shot is heard. The guy’s voice comes back on the line. He says: “OK, now what?” Thank you folks, I’ll be here all week.
FROM THE TRENCHES: A consortium of scientists announced that it has deciphered the genetic code of the parasite that causes the deadliest form of Malaria, an illness that kills more than a million people a year in developing nations.
With all the discussion about possible smallpox bioterrorism attacks in the U.S., has the dermatology world begun to address the cosmetic implications that an outbreak would entail? Sure, it sounds petty when lives are at stake. But if thousands of people stand to potentially become infected, has medicine developed any better means of preventing disfigurement? Drainage? Lots and lots of aloe gel? Sedatives to keep people doped until the pustules pass?
See also:
>>Preparing for smallpox
>>When rashes kill
>>Smallpox immunity lasts longer than thought
>>Mass smallpox vaccination plan urged
PC users of the world beware! A new worm called BugBear is making the rounds, and New Scientist says it reflects a worrying new trend in virus code. Instead of disabling your computer, or turning it into a denial of service pod to flood other machines with garbage, BugBear contains a Trojan horse program that can collect credit card details, passwords and other private information stored from a computer and send it to a hacker. “When run, the Trojan disables anti-virus programs running on your machine,” New Scientists says. “It then installs a ‘keyboard sniffing’ program that remains in the background and copies every keystroke on your keyboard and saves them to a file. At some point later it opens a network connection and transmits the file to its creator, or bundles it up and sends it out as an email.” One side effect of the worm is that it tries to mail itself to any other machines on your network, including printers. So if you see unexpected, long junk printouts spewing for the LaserJet, you ought to get checked for infection.
See also:
>>BugBear at Sophos
Ice meteors are falling from the sky in growing numbers. And while some skeptics still think the phenomenon a hoax or the result of ice from planes passing overhead, a Spanish scientist says they are neither. Though he doesn’t know precisely how the meteors form, Jesus Martinez-Frias, director of planetary geography at Spain’s Astrobiology Center in Madrid, notes that their results can be dramatic. The falling ice blocks tend to weigh upwards of 20 pounds and have smashed in cars, destroyed roofs and caused general mayhem where they land. But Martinez-Frias says he isn’t concerned so much about the terrestrial damage they can cause, but the atmospheric damage he believes they portend. “I’m not worried that a block of ice might fall on your head … but that great blocks of ice are forming where they shouldn’t exist,” he said. “Components of the atmosphere, like ozone and water, are changing in different levels of the atmosphere. … We think these signs could be evidence of climate change,” he told Reuters.
The New York Times and the Associated Press take long looks at flip sides of the coming Intel-Advanced Micro Devices war over 64-bit processors. In “Intel’s Huge Bet Turns Iffy,” The Times examines the company’s enormous investment of time and money — 10 years and $5 billion — into the chip, which it co-developed with Hewlett-Packard. The Infineon, or more precisely the Infineon 2 (an earlier version 1 was largely considered a flop) handles enormous quantities of data, but also uses lots of electricity. While the former is nice, the Times says, companies that run big server farms are increasingly mindful about all the juice needed to keep them running and cooled. AMD’s own 64-bit entry, the Hammer, uses less electricity, the Times notes ominously. But as the AP reports, there are no guarantees for AMD either. One of Hammer’s big selling points is that it is backward compatible with current x86 software, meaning anything you’re running now on a Windows box and more. That could make it an appealing crossover product, tempting for use in corporate servers and consumer desktops alike. But with a soft economy and many people happy with the speed they’ve already got, anything short of a groundswell adoption could be a major bummer for the perennial no. 2.
Results of an animal study published in the journal Science raise the possibility that the use of the rave fave drug Ecstasy ? methylene-dioxymethamphetamine ? can damage brain cells. The same cells, in fact, that are destroyed by Parkinson?s disease.
“We don’t know if human beings develop the same effects we describe in monkeys and in baboons,” Dr. George Ricaurte, a Johns Hopkins neurologist, told Reuters. “The broader issue is, are there hundreds of cases of unexplained parkinsonism in MDMA users? We don’t know because we haven’t looked.”
The Reuters article also contains the following quotation, reproduced below only marginally out of context: “[A]s you might imagine, it is not easy to get a baboon to take an oral dose of a drug.”
A tough microbe called Deinococcus radiodurans can withstand blasts of radiation, enduring several thousand times the lethal dose for humans. How did these little bugs develop this resistance? A team of Russian scientists has concluded that these extraordinary organisms are actually Martian microbes, here on Earth by way of meteorites. In tests on common bacteria E. coli, the scientists determined that evolution of radiation-resistance would take longer than 3.8 billion years, the time that life has been on Earth. In contrast, the bugs could develop this characteristic on the Red Planet in only a few hundred thousand years. On Mars there are much higher levels of radiation and the planet experiences regular climate swings that would induce dormancy in microbes, allowing them to accumulate sufficient doses of radiation to evolve into radiation-resistant critters.
Though not strictly a science story, the Wall Street Journal has a devastating profile this morning of Sam Waksal, founder of ImClone. It’s a warning not only for directors of technology-based companies, but for investors and the media, who can be charmed by one person with a winning personality and a compelling story (in this case a promising cancer-fighting molecule). Terrific digging by reporter Geeta Anand reveals a string of research jobs from which Waksal was ousted for misleading and sometimes falsified results. Do yourself a favor and read this one through to the end. Suddenly Martha Stewart’s alleged insider trading of ImClone stock seems like the least of anyone’s worries about Waksal.