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Car Thieves Could Be Stopped Remotely

(远程制止偷车贼)

Speeding off in a stolen car, the thief thinks he has got a great catch.But he is in a nasty surprise.The car is fitted with a remote immobilizer, and a radio signal from a control center miles away will ensure that once the thief switches the engine , he will not be able to start it again.For now, such devices only available for fleets of trucks and specialist vehicles used on construction sites.But remote immobilization technology could soon start to trickle down to ordinary cars, and be available to ordinary cars in the UK in two months.The idea goes like this.A control box fitted to the car incorporates a miniature cellphone, a microproceor and memory, and a GPS satellite positioning receiver.the car is stolen, a coded cellphone signal will tell the unit to block the vehicle’s engine management system and prevent the engine There are even plans for immobilizers that shut down vehicles on the move, though there are fears over the safety implications of such a system.In the UK, an array of technical fixes is already makingharder for car thieves.―The pattern of vehicles crime has changed,‖ says Martyn Rand all of Thatcham, a security research organization based in Berkshire that is funded in partthe motor insurance industry.He says it would only take him a few minutes to teach a novice how to steal a car, using a bare minimum

of tools.But only if the car is more than 10 years old.Modern cars are a far tougher proposition, as their engine management computer will not allow them to start unle they receive a unique ID code beamed out by the ignition key.In the UK, technologies like thisachieve a 31 per cent drop in vehicle-related crime since 1997.But determined criminals are still managing to find other ways to steal cars.Often by getting hold of the owner’s keys in a burglary.In 2000, 12 per cent of vehicles stolen in the UK were taken by using the owner’s keys, which doubles the previous year’s figure.Remote-controlled immobilization system woulda major new obstacle in the criminal’s way by making such thefts pointle.A group that includes Thatcham, the police, insurance companies and security technology firms have developed standards for a system that could go on the market sooner than theexpects.An Intelligent Car(智能汽车)

Driving needs sharp eyes, keen ears, quick brain, and coordination between hands and the brain.Many human drivers have all and can control a fast-moving car.But how does an intelligent car control itself?

There is a virtual driver in the smart car.This virtual driver has ―eyes‖, ―brains‖, ―hands‖ and ―feet‖, too.The minicameraseach side of the car are his ―eyes‖, which observe the road conditions ahead of it.They

watch theto the car’s left and right.There is also a highlydriving system in the car.It is the built-in computer, which is the virtual driver’s ―brain‖.His ―brain‖ calculates the speeds ofmoving cars near it and analyzes their positions.Basing on this information, it chooses the rightfor the intelligent car, and givesto the ―hands‖ and ―feet‖ to act accordingly.In this way, the virtual driver controls his car.What is the virtual driver’s best advantage? He reacts.The minicameras areimages continuously to the ―brain.‖ Itthe proceing of the images within 100 milliseconds.However, the world’s best driverneeds one second to react.Besides, when he takes action, he needs one more second.The virtual driver is really wonderful.He can reduce the accident rate considerably on expreways.In this case, can we let him have the wheel at any time and in amy place? Experts warn that we cannot do that just yet.His ability to recognize things is still He can now only drive an intelligent car on expreways.Wonder Webs(奇妙的网)

Spider webs are more than homes, and they are ingenious traps.And the world’s best web spinner may be the Golden Orb Weaver spider.The female Orb Weaver spins a web of fibers thin enough to be invisible to insect prey, yet tough enough to snare a flying bird without breaking.The secret of the web’s strength? A type of

super-resilient called dragline.When the female spider is ready to the web’s spokes and frame, she uses her legs to draw the airy thread out through a hollow nozzle in her belly.Dragline is not sticky, so the spider can race back and forth along trademark spiral.Unlike some spiders that weave a new web every day, a Golden Orb Weaver reuses her handiwork until it falls apart, sometimes not for two years.The silky thread is five times stronger than steel by weight and absorbs the force of an impact three times better than Kevlar, a high-strength human-made used in bullet-proof vests.And thanks to its high tensile strength, or the ability to resist breaking under the pulling force called tension, a single strand can stretch up to 40 percent longer than its originaland snap back as well as new.No human-made fiber even comes It is no wonder manufacturers are clamoring for spider silk.In the consumer pipeline: high-performance fabrics for athletes and stockings that never run.Think parachute cords and suspension bridge cables.A steady – but how to produce it? Harvesting silk on spider farms does notbecause the territorial arthropods have a tendency to devour their neighbors.Now, scientists at the biotechnology company Nexia are spinning artificial silk modeled after Golden Orb dragline.The first step: extract silk-making genes from the spiders.Next, implant the genes into goat egg cells.The nanny goats that grow from the eggs secrete

dragline silk proteins in their.―The young goats pa on the silk-making gene withouthelp from us,‖ says Nexia president Jeffrey Turner.Nexia is still perfecting the spinning proce, but they hope artificial spider silk will soon be snagging customers the real thing snags bugs.Chicken Soup for the Soul:Comfort Food Fights Lneline（心灵鸡汤：爽心食品排解孤独感）Mashed potatoes, macaroni and cheese, may be bad for your arteries，according to a study in Psychological Science, they’re good for your heart and ．The study focuses on ―comfort food‖ and how it makes people feel．

“For me,food has always played a big role in my family,‖ says Jordan Troisi, a graduate student at the University of Buffalo, and lead author on the study．The study came out of the research program of his co—author Shira Gabriel．It has non-human

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them．Others were given an emotionally neutral writing aignment.Then, some people in eachwrote about the experience of eating a comfort food and others wrote about eating a new food．had participantsof loneline．

Writing about a fight with a close person made people feel lonely．But people who were generallyin their relationships would feel le lonely by writing about a comfort food．”We have found that comfort foods are consistently aociated with those close to us．“says Troisi．”Thinking about or consuming these foods later then serves as a reminder of those close others．“Ineays on comfort food, many people wrote about theexperienceof eating food with family and friends.In another experiment,chicken soup in the lab made people think more about relationships, but only if they considered chicken soup to be a comfort food．This was a question they had been asked long before the experiment, along with many other questions, so they wouldn’t remember it.Throughout everyone’s daily lives they experience stre, often aociated with ourwith others,” Troisi says．"Comfort food Can be an easy remedy for loneline．

emotions．Some people reduce loneline by bonding with their favorite TV show, building virtual relationships with a pop song singer or looking at pictures of loved ones．Troisi and Gabriel wondered if comfort food could have the same effectmaking people think of their nearest and dearest.In one experiment, in order to makeparticipants feel lonely, the researchers had them write for six minutes about a fight with someone close to