Monday, August 19, 2002
The mathematics of "sliding block puzzles" can be surprisingly complex. Interested readers can try online Java versions of one such puzzle, "Rush Hour", here or here.
Laptop security: Michigan researchers have developed a small security device for laptops that will automatically encrypt all its data if the laptop is ever lost, stolen, or out of range of the rightful owner.
Sunday, August 18, 2002
Is the voting for "American Idol" being skewed by "power dialers" who can cast thousands of votes via computer with the touch of a button?
Socially irresponsible mutual fund: The Vice Fund is a mutual fund specializing in politically incorrect stocks shunned by so-called "socially responsible" investors, including alcohol, tobacco, and gambling stocks, as well as the defense industry. As the founder points out, "[T]hese particular stocks perform really well when the market goes up, goes down, whether we go to war, or don't go to war... People keep smoking, drinking and gambling". (Via Fark.)
Wil Wheaton's scene has been cut from the upcoming Star Trek: Nemesis movie. Rick Berman was nice enough to call him in person, however. (Via Metafilter.)
Saturday, August 17, 2002
NASA is developing a brain monitoring device for airport security screening. Supposedly, the device will monitor passengers' brain waves with "noninvasive neuro-electric sensors" in order "to detect passengers who potentially might pose a threat". The article also quotes some (non-NASA) scientists who are skeptical about the endeavour. (Via Politech.)
Would extraterrestrials be governed by a system of democracy? Douglas Vakoch argues that they probably would be and that extraterrestrial dictators would be rare. I personally don't think we have anywhere near enough information to make a reasonable guess, and that projections based on human societies are at best mere speculation.
Be careful if you're driving fast through South Florida: Florida Highway Patrol troopers disguised as construction workers are having a great time nabbing speeders.
Friday, August 16, 2002
Research into the marijuana-induced "munchies" may lead to the development of a better diet drug. Clinical trials are already underway in Europe and the US.
Malcolm Gladwell has written a terrific article on the science of reading facial expressions. (Via The Weigh In.)
Thursday, August 15, 2002
Grover Chestnut has guaranteed a steady stream of visitors to his gravesite by installing an ATM machine at his grave, then giving his heirs cards that allow them to withdraw their inheritance from the machine. (Via Linkfilter.)
"Hacking Las Vegas": The true story of how the MIT Blackjack team managed to win large amounts of money from the casinos using sophisticated card counting techniques. (Via Metafilter.)
Walter Mossberg gives a positive review to this sleek new videophone from Vialta which can be added onto any conventional home telephone line.
Many incoming college freshmen are using e-mail to get acquainted with their roommates-to-be. This can help reduce student anxieties, but it's also very easy to misinterpret others when communicating solely by e-mail.
Wednesday, August 14, 2002
A robot has taught itself how to fly in just 3 hours, using a genetic algorithm to mimic evolution. More information here.
Ed Headrick, the inventor of the modern frisbee, passed away today. And his ashes are going to be incorporated into some "special edition" frisbees. (Via Linkfilter.)
California legislators are having a heated debate over whether Segway scooters should be allowed on the sidewalks.
"Finding art in the palm of your hand": Three Cornell graduates have thought of a novel use of PDAs to help with the museum browsing experience (and with one's social life as well.)
Tuesday, August 13, 2002
How good are wine experts at distinguishing between red and white wine during a blind taste test? Not as good as you might think.
Scientists may be able to provide up to 30 seconds of warning prior to a major earthquake, which would be enough time to shut off gas lines and take other measure to limit damage.
The CIA predicts global trends for the next 12 years. Interesting mixture of optimistic and pessimistic projections. (Via Linkfilter.)
Monday, August 12, 2002
The European Space Agency is making plans for a space mission to test an anti-asteroid defense system.
Coincidences happen much more often than one would think. And the fact that we underestimate their occurrences makes us overly prone to believe in conspiracy theories.
Sunday, August 11, 2002
There's quite a bit of science to dunking a doughnut. (For the more prurient minded, the article also discusses the physics of sperm ejaculation.)
Physicist John Wheeler believes that data from quantum mechanics experiments shows that human consciousness can shape the past as well as the future.
Saturday, August 10, 2002
The magnetic north pole is threatening to leave Canada and enter Russian territory in the upcoming century. (Via Fark.)
Friday, August 09, 2002
A triple murder suspect in California is trying to use the Bigfoot Defense to explain his actions. Maybe he was inspired by the Chewbacca Defense used by the Johnnie Cochrane character against Chef in "South Park".
Practical quantum computing becomes even closer as scientists in France and Kansas have devised methods to stabilize qubits (quantum bits) for up to 100 times longer than before.
Scientists are working on an automated system to call balls and strikes in a baseball game. Needless to say, baseball umpires are not particularly psyched about this. Part of their objection is that they don't want to be held to a uniform strike zone, instead preferring the current system where each umpire can determine his own strike zone.
David Friedman says the best way to solve the spam problem is to charge spammers for access to your e-mail inbox. He explains how to implement his idea here.
Thursday, August 08, 2002
More airport security insanity: When a New York woman tried to board an airplane at JFK airport in NYC, the security guard found 3 feeding bottles of breast milk in her bag. The security guard forced her to drink a sample of breast milk from each bottle to prove that it wasn't a dangerous substance, refusing to allow her on board until she did so. Given that the US Transportation Security Administration has specifically stated that passengers can not be required to drink liquids before being allowed on a plane, she may have grounds for a lawsuit. (Via Plastic.)
The San Jose Mercury News has a interesting article about our part of Colorado. Unfortunately, they also make a good case that we'll become a lot like the SF Bay area soon in terms of crowding, traffic congestion, overpriced housing, and pollution, precisely because our region's virtues are attracting a lot of Californians. (I guess I'd better start investing in real estate before the prices skyrocket. And buy that second getaway home in Wyoming...)
Jet airplane vapor trails help moderate the extremes of temperature, making daytime highs cooler and nighttime cool temperatures warmer. Interestingly enough, this fact could only be verified in the aftermath of 9/11, when US air traffic was grounded for 3 days, thus allowing scientists to make detailed measurements without the effect of constant air traffic. More details here.
Mobile phone service providers in Bolivia are offering an unusual service for people who want to make a call but have forgotten their phones. They've hired a roving band of agents to act as mobile phone booths, letting people use their phones for 14 cents/minute. According to the article, "The system is so popular that the mobile cell phones are now more ubiquitous in La Paz than stationary public phones."
Wednesday, August 07, 2002
University of Wisconsin researchers have performed computer modelling demonstrating that we can fabricate working quantum computers with today's silicon technology.
Israeli scientists have figured out a way to hide fingerprint data within passport photographs in a robust fashion.
TiVo and Replay users should keep a close eye on the development of digital TV, because Hollywood may try to change the rules for digital TV that makes these devices currently so popular.
"Discrimination is Good": Douglas Kalish argues that detailed genetic testing of individuals might be bad for insurance companies but it could be of incredible benefit for patients.
The Cult of the Dead Cow is pissing off the mainland Chinese leadership by giving away its free encryption software.
Tuesday, August 06, 2002
Confessions of an online auction scammer, including some tips on how not to get cheated when bidding on eBay. (Via Techdirt.)
If you didn't think that the MousePad couch was firm enough, then there's always the Mac II Couch. (Via GMSV.)
After 9/11, the Municipal Credit Union lost its network connection which allowed it to verify members' ATM withdrawals. As a result, thousands of people were able to withdraw more money from ATMs than they had in their accounts, including many who withdrew thousands of dollars more than they were entitled to, resulting in total theft of over $15 million. Of course, all of their transactions were logged and there have been multiple arrests for grand larceny. This restores my faith in human nature...
Monday, August 05, 2002
Now this is just plain dumb: Security officials at Los Angeles Internationa Airport (LAX) confiscated the 2-inch replica plastic army rifle from a GI Joe action figure. According to the passenger, a 55-year old woman who was bringing the toy as a gift for her grandson, "They examined the toy as if it was going to shoot them. Then they asked me if there were toy grenades as well. I thought they were joking, but they weren’t smiling — they were deadly serious." When the 7-year old grandson finally received the toy (sans rifle), he asked his grandmother, "Don’t those people understand the gun was a toy? and couldn’t shoot". An LAX security chief said he was just following orders: "We have instructions to confiscate anything that looks like a weapon or a replica. If GI Joe was carrying a replica then it had to be taken from him." Maybe it's just me, but maybe the airport screeners should concentrate on improving their 48% miss rate on real weapons, rather than going after the 2-inch replica guns. (Via Metafilter.)
This history of the dotcom boom-and-bust is apparent in this "stroll through the graveyard of defunct domain names".
Sunday, August 04, 2002
The Hypersonic Sound System (HSS) can beam sound directly to a listener's head without anyone else being able to hear it. The system works by using a pair of ultrasonic beams, each inaudible to the human ear, that intersect at a particular point to reproduce the desired audio signal. (Via Zebulun.)
Bill Simon, the Republican candidate for governor in the state of California, may not win the election. But at least he has a sense of humor.
Saturday, August 03, 2002
A giant crater has been found under the North Sea, probably from an old asteroid impact. Scientists are excited about the discovery because of some unusual geological features of the crater.
Friday, August 02, 2002
A service in New York City is offering "designer kidnappings" for clients willing to pay thousands of dollars to be violently abducted. These mock kidnappings can include being bound, gagged, and incarcerated for up to days. It sounds like a bizarre version of the cheesy Michael Douglas/Sean Penn movie The Game. The NYPD doesn't approve of this business, but says it's perfectly legal. (Via BBspot.)
More nanotechnology innovation -- this time an advance in nanowires used to connect electronic components. These wires are so thin that they only allow electrons to move in one direction through them.
Have you herniated one of the discs in your lower back? Then consider getting it replaced with an artificial disc. As usual, these have been available in Europe for several years, but are just now beginning clinical trials in the USA.
It's not called "high" tech for nothing: Approximately 92% of IT workers have reported smoking marijuana. (I'd be very curious to learn the figure for my own field of diagnostic radiology, which involves lots of staring at intricately detailed images on computer monitors.)
An unexpurgated copy of the famous "Patton speech", along with some interesting historical background. (Via Linkfilter.)
Thursday, August 01, 2002
Carnegie Mellon AI researchers have created the first robot able to "register for a symposium, find a conference room and deliver a lecture" while remaining polite about it.
The game of Go is one of the most ancient and elegant board games in the world. It's also one of the most difficult for a computer to play.
Many high school and college students routinely use search engines like Google to help them with their homework, instead of going to the library. Although many teachers don't like this, personally I think this is fine, provided that students are also taught critical thinking skills. It's much better than relying uncritically on hard-copy library sources. As one of my friends says, "There's a lot of great information on the internet -- and some of it is even true." (Via Plastic.)
The Japanese like some pretty weird ice cream flavors, like octopus or ox tongue. I have to confess that I'm intrigued by the wasabi ice cream... (Via Boing Boing.)
Wednesday, July 31, 2002
"Whether or not you believe in the paranormal may depend entirely on your brain chemistry. People with high levels of dopamine are more likely to find significance in coincidences, and pick out meaning and patterns where there are none."
"Research and Risks": Glenn Reynolds looks back at the earlier debates from the 1970's regarding research into recombinant DNA technology. Back then, critics of the research warned of dire Frankensteinian consequences, even as supporters predicted major scientific advances which would benefit mankind. Guess who was right? The implications for the current debate on therapeutic cloning should be obvious.
What's the best way to get admitted to the University of California school system? Get good grades and do well on your SAT? Or score hardship points for having divorced parents or living in foster care? (Via Linkfilter.)
Tuesday, July 30, 2002
It would be frighteningly easy to smuggle one of these plastic-knives-hidden-in-a-comb onto an airplane. (Via BoingBoing.)
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