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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Ray Kroc Movie Response Ray Kroc was a business man who visited a fast food business known as McDonalds. This business had an interesting menu of only 9 menus at the time to make it a sufficient restaurant and so they could focus on making those 9 foods as fast and as well as they could. Ray Kroc was visiting Dartmouth and gave a speech at the college. In this speech he talked about how he liked this McDonalds business and wanted to be a part of it. In order for Kroc to buy this restaurant
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Ray Rice’s Amazing Story 19 Like Tweet 1 This page has been shared 1 times. View these Tweets. By Zachary Beard on May 20‚ 9:24a 65 FACEBOOK TWITTER I didn’t write this‚ but this is an article from "BaltimoreRavens.com." This really is one of the most feel-good stories I’ve seen in a while. I thank you Ryan Mink for writing this incredible story. But enough of my blabbering‚ here’s the story: His Childhood: Ray Rice was a child when his mother‚ Janet Rice‚ told him
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A Sound of Thunder by Ray Bradbury is about a man named Eckels. He is going back in time on an incredible hunting trip that changes the face of all hunting opportunities. Eckels is going back in time to hunt dinosaurs. Mainly the Tyrannosaurus rex. When the group arrives at the jungle of sixty million two thousand and fifty five years before President Keith‚ Travis tells the group about the consequences of stepping off the path. As the hunters are on their journey‚ Eeckels steps off the path and
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Nicole S. Tester November 20‚ 2010 Marketing 201 Promotion Strategies Ray-Ban in the 20th century has been able to prove its ability to maintain parallelism between its products and the century’s style determined by the American Culture. A decade breakdown will prove this parallelism successful. In the 1930’s to the 1940’s the Aviator style was introduced‚ perfectly complementing the number of social phenomenon pertaining to this decade. There was a dramatic increase in interest for aviation
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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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Olina Philippoussis Mr. Grazier English 2H 09/16/14 Greek Theater Webquest 1. Greek theater began when one of the earliest performers of Greek Tragedy complained that the city of Dionysia did not live out its name and had nothing to do with the god Dionysus. It made sense to dedicate performances to the God Dionysis because he was a big part in the peoples early lives‚ being the god of agriculture and wine. While Apollo represented qualities that were fundamental to the Greeks‚ Dionysis represented
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the Spotted Eagle ray is in the kingdom of Animalia (en.wikipedia.org/wiki/Eagle_ray). It is a multicellular organism that is motile‚ which means they can move independently the eagle ray is an animal (en.wikipedia.org/wiki/Animal). The eagle ray’s phylum is Chordate because it had a nerve cord during development and it has a spine.(http://marinelife.about.com/). The class is Chondrichthyes because it is a cartilaginous fish which is related to sharks‚ skates and of course other rays as they all are
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The Arrival of Blu-ray Technology Blu-ray- also known as Blu-ray Disc (BD)‚ is the name of a next-generation optical disc format which was jointly developed by the Blu-ray Disc Association (BDA)‚ a group of the world’s leading consumer electronics‚ personal computer and media manufacturers (including Apple‚ Dell‚ Hitachi‚ HP‚ JVC‚ LG‚ Mitsubishi‚ Panasonic‚ Pioneer‚ Philips‚ Samsung‚ Sharp‚ Sony‚ TDK and Thomson). As compared to the current optical disc format such as DVD‚ this new format allows
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X-rays and Ultrasound: X-rays and ultrasound are two different modalities used for different things‚ so an ultrasound can do some things an X ray cannot‚ and vice versa‚ and so this makes them very difficult to directly compare. Ultrasound: Above: An ultrasound machine. Ultrasound is the use of energy generated by sound waves of 20‚000 or more vibrations per second. Ultrasounds are generated by a device called a transducer. Bearing in mind that sound is a mechanical energy‚ the transducer
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