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Enter your query below to search our database containing over 45,000+ essays and term papers
Search results 121 - 130 of 174 matching essays
- 121: Cryogenics and the Future
- ... cryogenics is 100 (C (-148 (F) and the lowest temperature used, is the unattainable temperature -273.15 (C (-459.67 (F). Also, when speaking of cryogenics, the terms Celsius and Fahrenheit are rarely used. Instead scientists use a different measurement called the Kelvin (K). The Kelvin scale for Cryogenics goes from 173 K to a fraction of a Kelvin above absolute ...
- 122: Volcanos
- ... that has been released onto the Earth's surface. When lava comes to the Earth's surface, it is red hot and may have temperatures of more than 2012 degrees Fahrenheit. Fluid lava flows swiftly down a volcano's slopes. Sticky lava flows more slowly. As the lava cools, it may harden into many different formations. Highly fluid lava hardens into ...
- 123: Mercury
- ... change in volume for each degree of rise or fall in temperature is the same. The use of mercury in the thermometer instead of alcohol was done by Gabriel Daniel Fahrenheit in 1714. It was also used in vacuum pumps, barometers, and electric rectifiers and switches. Mercury is used in a mercury-vapor lamps which are used as a source of ...
- 124: The Sun
- ... find the density of the sun to be more than 150 times that of water. For this reason the center of the sun sits at a scorching 29 million degrees Fahrenheit. At this heat hydrogen atoms are under going nuclear fusion. Nuclear Fusion forces two hydrogen molecules to bond together to make one helium nucleus. The energy that is released is ...
- 125: Calories
- ... in one sitting until one considers that the human body is comprised of eighty- percent water. The body must be kept at or near ninety eight and one half degrees Fahrenheit at all times, to accomplish this feat enormous amounts of energy are consumed.
- 126: Apollo 4
- ... superiors to the shuttle director, Mr. Moore. Something was unusual about that morning in Florida: it was uncommonly cold. The night before, the temperature had dropped to twenty-two degrees fahrenheit. Icicles hung from the launch pad, it was said that the icicles could have broken off and damaged the space shuttle's heat tiles. It had been the coldest day ...
- 127: Mechanical Energy
- ... it causes the land or seas to rise in temperature. The sun is very hot. Infact, the center of the sun can reach temperatures of up to 27 million degrees Fahrenheit. This is because of another kind of energy reaction where new substances are continually being created as others are being destroyed. This reaction is known to us as the Nuclear ...
- 128: Solar Energy - The Energy Of The Future?
- ... have machines that angle the mirrors and lenses to the sun all day. This system can provide sizeable amounts of electricity and create extremely high temperatures of over 6000 degrees Fahrenheit. Solar energy generators are very clean, little waste is emitted from the generators into the environment. The use of coal, oil and gasoline is a constant drain, economically and environmentally ...
- 129: Mechanical Energy
- ... it causes the land or seas to rise in temperature. The sun is very hot. Infact, the center of the sun can reach temperatures of up to 27 million degrees Fahrenheit. This is because of another kind of energy reaction where new substances are continually being created as others are being destroyed. This reaction is known to us as the Nuclear ...
- 130: Comets and Asteroids
- ... were to be detonated. A collision of a comet into the earth would be a reasonably bad day. The earth would shake, the atmosphere would heat to about 600 degrees Fahrenheit, and the planet would burst into flames. All buildings would crumble, the ocean would boil almost to the core, and the plates that make up the earth would separate enough ...
Search results 121 - 130 of 174 matching essays
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