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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among many others. This paper will focus primarily on one individual who exemplifies these traits and many other characteristics which contributes greatly to his success as a leader. The person that has been selected for the basis of this paper is Ray Lewis‚ a twelve year pro-bowl selection linebacker from the Baltimore Ravens. The reason I have chosen Lewis for this paper is because of the qualities he has as a leader not only on the playing field‚ but off of it as well. He is what I believe to
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Cathode ray tube is used for producing images‚ when an electron beam hits the surface made out of a phosphorescent‚ and the cathode ray tube is basically a vacuum tube. An example of a cathode ray tube is a computer desktop and the picture tubes in television are similar to the cathode ray tube in television. There are numerous components of cathode ray tube‚ which are the Electron gun‚ Anodes‚ Coil‚ Phosphor-coated screen‚ electronic beam and the spot through which the beam passes through. In a
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John Alvin Ray‚ or best known as Johnnie Ray‚ has an incredible story. Johnnie was a popular singer/songwriter back in the 1950’s. Sure‚ this is an accomplishment for him‚ but his songs alone weren’t exactly what made him who he was. Johnnie Ray had a past‚ present‚ and a future and he knew what and where he wanted to be a few years down the road‚ and made it happen. At the young age of thirteen‚ Johnnie lost his hearing in his left ear from an accident at a boy scout activity. Him and the family
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To call Charles Ray: Sculpture‚ 1997-2014 at the Art Institute of Chicago sparse is both an over and understatement. The exhibition on the Chicago-born‚ Los Angeles-based sculptor dedicates an entire half of the Modern Wing’s second floor to a mere nineteen different sculptures. Based on the exhibit’s title and the sheer size of the rooms that they gave to these pieces‚ it is as if they are trying to edify the viewer to Ray’s value as a contemporary artist. However‚ as you go through the exhibition
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RAY-BAN: THE HISTORY OF THE TOP-SELLING EYEWEAR BRAND WORLDWIDE Throughout its seven-and-a-half decades‚ Ray-Ban has been instrumental in pushing boundaries in music and the arts‚ forging the rise of celebrity culture‚ and creating the power of the rock and movie stars to influence fashion. From James Dean to Audrey Hepburn to Michael Jackson‚ Ray-Ban has proven indispensible for cultural icons who don’t want to be seen - but definitely want to be noticed. Ray-Ban has left an indelible mark on culture
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Ray Allen ‘’When people say God blessed me with a beautiful Jump-Shot‚ it really pisses me off. I tell those people‚ ‘’’Don’t undermine the work I’ve put in everyday‚ not some days‚ everyday.’’Ray Allen is a hard worker‚ he has been since the day he was born on July 20‚ 1975.His parents‚ Flora and Walter Allen‚ were in the Military during Ray’s youth. He was even born on Castle Air Force base in Merced‚ California. Ray constantly moved with his family. He had a hard time making friends at all the
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X-Ray scans INTRODUCTION TO MEDICAL TECHNOLOGIES ________________________ Technology has had a major impact on human life and has had a similar effect on human health as well. There have been many advances in medical imaging and medical practices over the years. These technologies include: X-rays‚ CAT Scans‚ NMRIs‚ Mammograms‚ and many more. With the introduction of many new types of scans‚ medical professionals are able to diagnose and treat many diseases including cancer. However‚ the technologies
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10.2 Properties of Cathode rays Aim: to determine some of the properties of the rays which come from the cathode of a discharge tube. Equipment * Two power packs * Two plug-plug leads * One pair of magnets * Induction coil * Four plug-clip leads * Discharge tubes (Maltese cross‚ electric plates‚ rotating wheel‚ screen display) Theory: This experiment is designed to show you the properties of cathode rays as discovered by Sir William Crookes. Method: 1. Connect the
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For some reason‚ I was speechless. All I had ever wanted‚ August‚ June‚ Rosaleen‚ all of my mothers‚ they were pulled out from under my feet. I wanted to protest T. Ray‚ to tell him that my mother would have wanted it this way‚ but I had done enough. I followed him out of that big pink house that had taken me in and wondered what T. Ray would do to me. I was sure he would half kill me‚ and there wasn’t a thing worse than being half killed. I was leaving Rosaleen behind‚ the woman who I got out of jail
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