Dark Matter Matt Cannon (928) Physics 222 2/15/02 Final Draft Dark Matter The ultimate destiny of our expanding universe depends on how much matter it contains and whether or not the amount of matter will be enough to one day stop the expansion. When astronomers add up all the visible matter (matter that emits or reflects light) in the universe, the result is that there is clearly not enough to stop the expansion of the universe. However, they have discovered over the past several decades
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hermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation. It interrelates macroscopic variables, such as temperature, volume and pressure, which describe physical properties of material bodies and radiation, which in this science are called thermodynamic systems. Historically, thermodynamics developed out of a desire to increase the efficiency of early steam engines
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There are many people who could be nominated for their artistic contributions, advances in technology, medical contributions and scientific advances. But one person sticks out in my mind as a genius of the Western culture. Through his disability I believe Stephen Hawking has stood out as a genius of our Western culture. Even with being diagnosed with Amyotrophic Lateral Sclerosis, he has provided ground breaking work in cosmology and physics. He has written several different books to allow science
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Joules/Kelvin (energy over temperature), and as the universe expands it becomes colder and colder, the value for temperature goes down, resulting in a greater number as we go along the arrow of time. Using the CMBR (Cosmic Microwave Background Radiation), which is radiation left over from the Big Bang, scientists have measured the cosmic temperatures to be averaging at around 2.73 Kelvin [1], and it still decreasing. On the other hand, energy density, which is the amount of energy in a given space,
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examination, a radiographer will explain the procedure to you and answer any questions you may have. A Radiologic Technologist is a skilled professional with specialized education of anatomy, radiation protection, patient care, radiation exposure, and positioning. It is part of their duty to determine how much radiation is necessary to produce a diagnostic image. Radiographic testing is a non-destructive testing that uses X-rays and/or Gamma-rays for detecting internal imperfections and for detecting
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Hardiman, a young black male age 5, was cruelly subjected to human research, during which, accidentally, massive amounts of radiation was delivered to his head. The destruction to this young boy’s physical, as well as, emotional condition would remain with him forever. As informed consent was not mandated during this time, Hardiman’s parents were given false information regarding the experiment and did not know their son was being exposed to dangerously high levels of radiation. Their rural location
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astronomers a huge explosion named the Big Bang created the Universe about 14 billion years ago . There are four basic forces that control the Universe : electromagnetism, the weak force, the strong force, and gravity. The asteroids, galaxies, comets, black holes, red dwarfs, meteors, moons, planets etc also constitute the Universe. There are nine planets planets in our solar system. They are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. The distances between these planets are
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evidence began to support the idea that the universe evolved from a hot dense state. In addition, the discovery of the cosmic microwave background radiation in 1965 was considered the death knell of the Steady State, although this prediction was only qualitative, and failed to predict the exact temperature of the CMB. (The key big bang prediction is the black-body spectrum of the CMB, which was not measured with high accuracy until COBE in 1990). After some reformulation, the Big Bang has been regarded
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are now becoming more of a major problem now more than ever. The biggest major issue I believe we are facing is ozone depletion and it is depleting at an alarming rate. We now have major holes where the ozone molecules have been ripped to shreds by chlorine and bromine. (National Geographic) The biggest ozone hole is over the Antarctic which has been getting bigger since the mid 80’s. The biggest contributor of producing these deadly chemicals, are the industrialists that use aerosol sprays that contain
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Isaac newton´s bibliography * Science Isaac Newton Telescope (INT) The Isaac Newton Telescope provided the first observational evidence of the existence of a black hole in our Galaxy. It has made numerous other important contributions to research on quasars, supernovae, galaxies, the Milky Way, planetary nebulae and stellar evolution. The telescope began life in the UK, at Herstmonceux in East Sussex, before relocating in 1984 to the more advantageous astronomical conditions of La
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