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Papers on Science and Nature
The Geiger-Muller Tube
Number of words: 227 | Number of pages: 1.... this cylinder. The voltage across the wire and cylinder is kept
just below the point at which a spontaneous discharge, or spark, occurs. When a
charged particle or gamma ray enters the tube , it ionizes a gas atom between
the copper cylinder and the wire. The positive ion produced is accelerated
toward the copper cylinder by the potential difference. The electron is
accelerated toward the positive wire. As these new particles move toward the
electrodes, they strike other atoms and form even more ion in their path.
Thus an avalanche of charged particles is created and a pulse of current
flows through the tube. The current c .....
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A Balloon And Science
Number of words: 422 | Number of pages: 2.... until you let go of the closing (hole). It wont stop until it runs out of air or something is in the way of its' path. The second law of motion is: The acceleration of an object increases as the amount of force causing the acceleration increases. This means the more air in the balloon the farther and faster it goes. The third law of motion is: For every action force there is an equal and opposite reaction force. This means, if you let go of the balloon, something would slow or stop it eventually. The balloon slows down when it starts running out of air. It begins quickly. The more air in the balloon the farther it trav .....
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Essay On Global Warming
Number of words: 776 | Number of pages: 3.... hydrofluorocarbons, and perfluorocarbons. These gases are generated a number of human activities such as fossil fuel combustion, waste disposal in landfills, the use of a refrigerator, numerous agricultural and industrial activities, and the cutting down of numerous forests.
These human practices have already changed the chemical make up of the atmosphere. Between the pre-industrial times and today, we have seen the concentration of carbon dioxide rise 30% in some regions, in particular the northern hemisphere, human practices have increased concentrations of aerosols in atmosphere, which is a traditional form of air poll .....
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ALCHEMY
Number of words: 1357 | Number of pages: 5.... that there resided within in the individualities of the various metals, that in
it their various substances were incorporated. This black powder was mystically identified with the underworld form
of the god Osiris, and consequently was credited with magical properties. Thus there grew up in Egypt the belief
that magical powers existed in fluxes and alloys. Probably such a belief existed throughout Europe in connection
with the bronze-working castes of its several races. Its was probably in the Byzantium of the fourth century,
however, that alchemical science received embryonic form. There is little doubt that Egyptian tr .....
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Diffraction And The Debye-Scherrer Camera
Number of words: 2086 | Number of pages: 8.... and f is the phase constant
or phase angle and has units of radians per second.
The phase constant determines the position of the particle at time t = 0. The quantity (wt+ f) is called the phase. The above function x repeats itself whenever wt = n2p where n is an integer. The period T of the motion is the time it takes for the motion to complete one revolution or cycle. The unit for the period T is seconds. Since the function repeats itself every period T for any time t and it has already been written that we know that wt = 2p when the function x repeats itself
wt + f + 2p = w(t+T) + f
so wT = 2p
so
T = 2p/w
The .....
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Human Origins
Number of words: 291 | Number of pages: 2.... from ape-like creatures. Even with this, there are still disputes in the paleoanthropological field of whether or not this is true. Still, many choose to believe their religious creation stories where a God created humans. Whether it is Johanson's idea on human evolution or Leakey's or even the Roman Catholic's creation story, all are an individual own interpretation and neither wrong nor right.
A paleanthropologist by the name of Donald Johanson is one of the many who have a very different view on the origin of humans. In 1974, he discovered forty percent of an individual dating back to 3.5 million years ago. The individual, Au .....
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Mellville And Darwin's Writings On The Galapagos Islands
Number of words: 977 | Number of pages: 4.... terms. An important part of Mellville's style
is that the he never directly describes the islands. "Take five-and-twenty heaps
of cinders dumped here and there in an outside city lot" is how Mellville's
description of the Galapagos Islands begins. This reduces the Galapagos islands
from a large, nearly inconceivable place to objects of which most any reader
can create a mental picture. When Mellville describes the flora of the
Galapagos Islands, he compares it with drying "Syrian gourds," aching for water.
Mellville discusses the solitude of the Galapagos Islands in comparison with
Greenland, a familiar place of solitude, the c .....
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How Technology Effects Modern America
Number of words: 1151 | Number of pages: 5.... Welfare Reform Network.
In view of these facts, I wonder if these trends are good or bad for society. "The danger of the information age is that while in the short run it may be cheaper to replace workers with technology, in the long run it is potentially self-destructive because there will not be enough purchasing power to grow the economy," M. B. Zuckerman. My feeling is that the trend from unskilled labor too highly technical, skilled labor is a good one! But, political action must be taken to ensure that this societal evolution is beneficial to all of us. "Back in 1970, a high school diploma could still be a ticket to the .....
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Origanum Vulgare
Number of words: 302 | Number of pages: 2.... and a fresh aromatic aroma. The leaves of oregano are very aromatic, slightly pointed and hairy. The flowers are white, and bloom from late July to September. Oregano grows to be 2 feet tall, and rich, moist soil makes the aroma and flavor of oregano weak.
Oregano has been used for many other things in the past, and has been very helpful and constructive to humans. It has been essential in cooking and an important ingredient in types of medications. Oregano may be a small herb, but it is a significant herb and is used all around the world, in many different ways .....
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Formation Of Protocells
Number of words: 797 | Number of pages: 3.... there was also another source of heat from the young earth crust which was volcanically active.
For most chemical reactions to take place, a spark of electricity is needed, and this was provided by the lightning in the atmosphere. Amino acids basically consist of hydrogen, nitrogen, oxygen and carbon. Due to all of the lightning chemical reactions took place between molecules of N2 and H2, thus these molecules formed Amino acids.
A famous American scientist Dr Fox, was able to show how amino acids, the building blocks of proteins found in all living things, could spontaneously organize themselves into "microspheres." These ce .....
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