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Search results 2381 - 2390 of 5332 matching essays
- 2381: Alchemy
- ... extend the life of the user. They thought that the elixir would start its own transformation in the human body, incorruptibility and hence longevity. (Halleux 140) By making these substances would sometimes get the opposite effect of what they were intended, because sometimes unwittingly they would make a poison instead of The Elixir of Life. Most of the times the alchemists test subjects were themselves they would soon find the mistake ...
- 2382: What is Physics?
- ... theorized that time runs backwards and all event waves now head towards Event One. The term given to this process when the TARDIS dematerializes from one point in space-time and rematerializes in another. In effect, the TARDIS is skipping tracks, traveling to tracks long passed or journeying ahead of the event wave. Track skipping is really another name for temporal displacement or time travel. Chapter 4: You sit in an ...
- 2383: The Superstring Theory
- ... accounts for mass that scientists have not been able to account for ("missing mass" problem). This is possible and somewhat logical because the shadow universe would be completely undetectable by any sensors except the ingrained effect of the shadow mass (i.e., a shadow moon would be very "feelable" to the Earth). This "shadow" mass has indeed bring some credence to the HE theory inside of the String community; however, there ...
- 2384: Water and Its Importance
- ... molecules that leave the vessels are evaporated and are replaced by remaining water from the vessels in the veins of the leaf. In a way, the hydrogen bonds cause a sucking in on a straw effect by causing the water molecules leaving the vein to pull up molecules at the bottom of the vessel. Adhesion also plays an important role in this process because it counters the downward pull of gravity ...
- 2385: Satellites
- ... and transmitters and the electronic technique of these communications satellites can relay many telephone and television signals at once. Navigation satellites can pinpoint any location on Earth with high accuracy by use of the Doppler effect. The U.S. Transit system has been in worldwide operation continuously since 1964 and is used by more than a thousand stations NAVSTAR a more advanced system consisting of 18 satellites positioned at an altitude ...
- 2386: The Threat of Nuclear Energy
- ... difficult to manage. (78) The reason why plutonium is so dangerous when it gets into the lungs is because plutonium releases radiation to a small mass of the lung at a very short distance. This effect of radiation from plutonium giving a concentrated dose to one small area is much greater than if the same amount of radiation had been uniformly distributed throughout the lung. Another problem with plutonium is its ...
- 2387: Evolution
- ... to their environments by the process called evolution. The most influential force on evolution is natural selection. This theory of states that organisms with favorable traits survive to pass those traits onto their offspring, the effect of which can only be seen when a population is studied for many generations. Although it may take many generations to change a population, natural selection is a powerful defense against changes in the natural ...
- 2388: The Theory of Evolution
- ... rate. But, something may occur that makes the C14 stay longer in the object, or vice versa. Also, fossilized items have been put under intense pressure and stress under the earth, and who knows what effect that would have on the dating assumptions. In other words, our dating systems are based on theoretical assumptions, which may or may not hold true to the item being dated. Because of the theoretical nature ...
- 2389: The Importance of Insects
- The Importance of Insects Insects are commonly categorized as harmful or beneficial, but such sorting is done arbitrarily, as all insects' effect our lives greatly. That is not to say that certain insects may not be of a more obvious and positive use to us than others may be, as many have functions which translate straight into ...
- 2390: Dangers of Methyl Bromide
- ... be considered a worldwide emergency. The producers and users of the substance argue that phasing out the pesticide will cause will be economically disastrous, but clearly their view does not take into account the devastating effect on the ozone layer and the health of humans by the use of this deadly fumigant, the cost to the community far out ways the cost to the users. So what is the alternative? There ...
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