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Nuclear Fusion Atomic Mass
683 wordsby I Helium Helium by I aint telling you! ! ! Pierre Janssen discovered helium in the sun in 1868. Janssen originally thought it was sodium, but Joseph Norman Lockyer noticed that it didnt correspond to the D 1 and D 2 lines of sodium. He named it the D 3 line. Lockyer said that the element D 3 was unknown on Earth. He and Edward Franklin concluded on the name Helios after the Greek god of the sun. Helium is found everywhere in space. All natural gases have at least a little bit helium in them. ...
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00 P M 30 A M
800 wordsLow Temperature Effects on Minnows (Phoxinus plotinus) and juvenile Atlantic Salmon (Salmo salar) Studies have shown that freshwater minnows and juvenile Atlantic Salmon become nocturnal with increased low temperature. To determine if these species are nocturnal at low temperatures, counts of individual fishes would be taken by how many fishes are observed during the daytime taking refuge underneath rocks. Also, by observing how many individuals are active at nighttime. At a warmer day time temp...
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Washington D C Ozone Hole
1,498 wordsThe reappearance of the ozone hole over Antarctica has been a hot topic for scientist around the world. A few of these scientists are the atmospheric physicist Richard D. Mc Peters and several of his colleagues at the NASA Goddard Space Flight Center in Greenbelt. The ozone hole showed up earlier than expected, and it was wider and thinner. It appeared in mid-August, about two weeks ahead of schedule, and on September 19 reached the record size of 10. 5 million square miles, more than three and ...
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Liquid Nitrogen Liquid Hydrogen
1,519 wordsCryogenics and the Untitled Cryogenics and the Future Cryogenics is a study that is of great importance to the human race and has been a major project for engineers for the last 100 years. Cryogenics, which is derived from the Greek word keys meaning " Icy Cold, " is the study of matter at low temperatures. However low is not even the right word for the temperatures involved in cryogenics, seeing as the highest temperature dealt with in cryogenics is 100 (C (- 148 (F) and the lowest te...
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Amount Of Energy Magnetic Fields
1,648 wordsWeve all heard Untitled INTRODUCTION Weve all heard about superconductivity. But, do we all know what it is? How it works and what are its uses? To start talking about superconductivity, we must try to understand the how " normal" conductivity works. This will make it much easier to understand how the " super" part functions. In the following paragraphs, I will explain how superconductivity works, some of the current problems and some examples of its uses. CONDUCTIVITY Conduc...
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