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
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Isaacs 1 Madeline Isaacs Davis English 5th hour 24 January 2011 Chelmno This death camp had a single purpose: to kill every Jew within a few hours of their arrival. In 1940‚ thirty-three Jews lived in a village named Chelmno. Nazis came into their village and forced each one to flee. Over a year later‚ the village became the site of the first death camp‚ Chelmno. This camp was located in the Kolo County in central Poland. German occupation authorities named it Kulmhof. The entire Jewish populations
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homosexuals‚ etc. being killed‚ ten or twenty or maybe even fifty at a time. Some are burned alive. Some are gassed until death finally kills their immune system. The others take on the cruelest punishment. They’re forced to work in concentration camps where they are split up from their family and children. Children who couldn’t work were forced to death‚ some mothers coming along with their children if they refused to cooperate with giving their kids up. We ask ourselves‚ what made these men so
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106 Cassandra Johnson December 2‚ 2013 Script for Fragile X Presentation Slide 1. FRAGILE X SYNDROME Slide 2. Fragile X syndrome (FXS) is a genetic disorder and the leading cause of inherited mental retardation. Children with this syndrome often have significant delays in learning‚ autistic-like behavior‚ hyperactivity‚ and a distinctive physical appearance Slide 3. The term “fragile X” comes from the finding that the X chromosomes of affected individuals have a fragile site that
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Conrad Rontgen‚ a German‚ accidentally came upon the x-ray. The x-ray is a complex piece of technology that airports and hospitals use greatly in life today. In the medical world the x-ray has helped find diseases when no other piece of technology could. The x-ray is a very important machine that our world couldn’t do without. Rontgen accidentally discovered the x-ray when he was studying the effects of the cathode ray. He found that the x-ray could light up a screen a few meters from the source
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Demographers have named the different generations around today as Veterans‚ Baby Boomers‚ Generation X‚ Generation Y and Generation Z.Here I’ve tried to analyze Gen X & Gen Y. GEN X The moniker Generation X was coined by Douglas Coupland‚ who chose the unknown variable “X” to describe a generation that defies definition.Members of Generation X are largely in their 30’s and early 40’s. On the whole‚ they are more ethnically diverse and
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Generation X Annotated Bibliography Generation X is getting older and with age comes market share. With Generation X moving into higher paying jobs and with little marketing directed towards them‚ there is little brand loyalty. Marketers should be aware of this new generation and how they feel they are portrayed in media. A better understanding of Generation X will result in media that is effective in reaching this market. Bunker‚ T. (1995). Don’t try to reach gen x on tv. Brandweek‚ 36
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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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History The Social Impacts of Malcolm X The Black Civil Rights Movement of the 20th century pushed for and achieved different levels equality through its many prominent activists. Prior to the movement‚ millions of Black Americans faced brutal abuse and segregation with little to no government action taking place against such wrongdoings. The movement included passionate advocates for black equality such as Rosa Parks‚ Dr. Martin Luther King Jr. and Malcolm X. These civil and human rights activists
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Malcolm X Compare and Contrast One of Spike Lee unique moments in the movie that was also in the book was about Malcolm X mother. In the book‚ it quotes Malcolm X saying‚ “I have rarely talked to anyone about my mother”. In the movie‚ Malcolm was in a bar in Harlem where a white man approached him; the white man called Malcolm a nigger and a boy. Malcolm X did really pay him any attention until the white man said “What you going to do‚ go home back to your momma. When the white man said
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