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Profiling 50 of the world’s preferred playthings—including their background, minutiae, and the know-how involved—this advisor uncovers the hidden technological know-how of toys. become aware of how an Etch A cartoon writes on its grey display, why a boomerang returns after it truly is thrown, and the way an RC vehicle responds to a handheld remote control machine. Leaving no aspect unrevealed, the advisor comprises unique patent-application blueprints and photographs of the “guts” of numerous units. Inventors and museum curators additionally supply their observations of favourite gizmos whereas dispelling (or confirming) a number of toy legends. whole with causes of selfmade experiments and pointers on opposite engineering outdated toys to watch their inside mechanics, this pleasing and informative reference even offers tips on how budding toy makers can construct their very own toys utilizing purely recycled fabrics and a bit ingenuity.
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Additional resources for Science (Vol. 309, No. 5744, September 2005)
Science policymakers see prizes as a way to stretch tight budgets and uncover new talent proved the value of that approach despite the fact that none of the 15 vehicles traveled more than 11 km of the 229-km course across the Mojave Desert in California. DARPA chief of staff Ron Kurjanowicz says that having so many teams tackle the problem yields a wealth of ideas for technologies that might apply to the battlefield. One example: Some teams load their vehicles with detailed geographic maps, while others save on computing power and rely on sensors gathering data as they go.
So Alice and Bob can use the large-small pairs to generate the key. Making the scheme work over long distances may not be easy, says Weston Tew, a physicist at the National Institute of Standards and Technology in Gaithersburg, Maryland. And Bergou notes that if the wire itself has a sizable resistance, then the fluctuations should be slightly larger on the end with the large resistance, a fact Eve might exploit if she spies on both ends at once. Still, today’s quantum technologies only approximate the uncrackable ideals, and Kish’s idea suggests that simpler schemes might match their performance, says Julio Gea-Banacloche, a theorist at the University of Arkansas in Fayetteville.
AMMAN—Wissam Al-Hashimi, a senior geologist with Iraq’s Ministry of Oil and vice president of the Arab Geologists Association, was looking forward to coming to Jordan for a conference on Iraqi science. Then the grim reality of Baghdad intervened: Late last month, the British-educated scientist was kidnapped from his home and held for ransom. His daughter scraped up tens of thousands of dollars—and paid—but her father was not freed. The family finally tracked him down 2 weeks ago. “They found him in a morgue with two gunshot wounds in his head,” says Moutaz Al-Dabbas, an environmental scientist at the University of Baghdad.
Science (Vol. 309, No. 5744, September 2005)