doi:10.1038/nature07378 L ETTERS Correlation between nanosecond X-ray flashes and stick–slip friction in peeling tape Carlos G. Camara1*‚ Juan V. Escobar1*‚ Jonathan R. Hird1 & Seth J. Putterman1 Relative motion between two contacting surfaces can produce visible light‚ called triboluminescence1. This concentration of diffuse mechanical energy into electromagnetic radiation has previously been observed to extend even to X-ray energies2. Here we report that peeling common adhesive tape in a
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discovered great things about themselves or the world with the help of a teacher/mentor. Stories such as Speak by Laurie Halse Anderson and The Effect of Gamma Rays on Man-in-the-Moon Marigolds by Paul Zindel‚ use schools as a setting for life-changing discoveries. The protagonists in both of these books‚ Melinda (Speak) and Tillie (The Effect of Gamma Rays on Man-in-the-Moon Marigolds) go through personal troubles that are solved by an important teacher/mentor. Even though each girl is excluded at school
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Ray Charles‚ was one of the greatest composers. His music was different‚ but it was a unique kind of different. It made a person want to get up and dance because it had so much life in it. It was the dedication Ray had that he put it all into all his music. He had so much heart and in the music industry that’s all that is needed. How would‚ Ray Charles‚ music be describe? It’s said that it was soulful something that will never be forgotten. Ray took pride in making others feel good while listening
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Our objectives for Ray-Ban included increasing consumer awareness of the Ray-Ban brand to its core demographic (males & females 25-39) and to reinforce Ray-Ban’s position as a classic‚ desirable style that is a must-have accessory for confident consumers. Additionally‚ we sought to extend our product placement efforts wherever possible through promotional opportunities and story points for publicity. We worked with major studios and television/cable programs to place Ray-Ban products in programming
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X-ray diffraction has perhaps been one of the most critical and exigent discoveries of the 20th century. Early X-ray diffraction images for tobacco mosaic virus had been collected before World War II. By 1954‚ Watson had discovered from his X-ray diffraction images that the tobacco mosaic virus had a helical structure‚ and was able to apply this to his famous DNA structure research. It is so valued because it allows the structure of a crystalline material can be determined‚ based on the diffraction
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An Analysis on “The Pedestrian” In “The Pedestrian” Ray Bradbury wanted to portray an event that happened one night while taking a walk with a friend‚ stopped by a police officer who didn’t get why they was walking and stated “Well don’t do it again”(Person 50). The characterization and symbolism in this short story demonstrate how society might turn out when humankind depends upon technology. “We have too many cell phones. We’ve got too many internets. We have got to get rid of those machines
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In “The Veldt” by Ray Bradbury‚ the parents were the causation of their deaths because they spoiled their kids sick. In the story‚ the parents gave their kids everything they’d ever wanted‚ but their kids were spoiled‚ and when the parents took away some of the technology‚ the kids were mad‚ so they killed their parents. One determent of this is the kids didn’t have any severe restrictions on their electronics from their parents. According to kidshealth.org‚ it states “The American Academy of Pediatrics
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X rays and Ultrasound are two of the main imaging techniques used in radiography. For the purposes of this essay‚ we will look at conventional x-rays and diagnostic ultrasound. Conventional x rays are non-invasive diagnostic techniques that are used to capture images of the body’s organs and bones. Diagnostic ultrasounds are high frequency sound waves to create an image of soft issues in the body such as muscles‚ joints‚ and internal organs. As examined below‚ while both are used in diagnostic radiography
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of Rachael Ray as a chef. Central idea: Rachael Ray is known best as an American television personality‚ businesswoman‚ celebrity chef and author. Introduction: I. Who is Rachael Ray? II. At what age did Rachael Ray start cooking? III. What are the names of Rachael Ray’s books? IV. According to www.rachaelray.com Rachael now hosts 4 television shows. V. Today I will answer two questions about Rachael Ray. A. Who Rachael Ray is? B. How many television shows does Rachael Ray air? (Transition:
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Dental X-ray Unit History Discovery of x-ray Professor Wilhelm Conrad Roentgen * 1895 discovered the first example ionizing radiation * the key to his discovery was device called a Crooke’s tube. Scientists and Researchers * Dr. Otto Walkhoff * the first to expose a prototype of a dental radiograph. * accomplished by covering a small‚ glass photographic plate with black paper to protect it from light and then wrapping it in a sheath of thin rubber to prevent moisture
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