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Search results 201 - 210 of 278 matching essays
- 201: Asimov On Chemistry by Isaac Asimov
- ... for the ocean. The Egg and Wee Asimov talks about and contemplates how all life can be placed in a egg which is so small. He ends by talking about the volume and number of atoms certain viruses contain along with who died studying them. That's Life Explanations of life are given here. Asimov talks about people theories and definitions of life over past years. People tried to say what ...
- 202: Copper Report
- ... 2567 *C, and density is 8.96 g/cm3. A few other statistics are: Valence States 2,1, it's magnetic state is diamagnetic, its heat of fusion is 134 J/g. There are four atoms per Unit Cell, Copper's structure is A1; Copper (as a crystal structure) is a face-centered cubic. It's volume is 1.182(-29)m3. The metal copper has a number of uses. First ...
- 203: Analytical Chemistry
- ... are frequently classified as classical and instrumental, depending on the techniques and equipment used. Many of the methods currently used are of relatively recent origin and employ sophisticated instruments to measure physical properties of molecules, atoms, and ions. Such instruments have been made possible by spectacular advances in electronics, including computer and microprocessor development. Instrumental measurements can sometimes be carried out without separating the constituents of interest from the rest of ...
- 204: Acetylation of Ferrocene
- ... As one recalls, polarity is a measure of the electronegativity of a compound determined by their placement in the periodic chart. Specifically, in this lab we are talking about the difference in polarity between the atoms of oxygen and carbon. Ferrocene is relatively low to none in polarity. Acetylferrocene, because of the carbonyl functional group, is more polar than the ferrocene. Moreover, diacetylferrocene, because of the 2:1 ratio of the ...
- 205: 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 called gamma radiation. Sun Spots The magnetic field of the ...
- 206: Global Positioning Systems
- ... factor of 180 miles or so. Obviously, very accurate clocks are required. DO YOU HAVE THE EXACT TIME? Each satellite carries four atomic clocks internally, each of which uses the oscillation of cesium and rubidium atoms to keep extremely accurate time, accurate to within one second over more than 30,000 years. (For you graduates of the USAF Academy, that's one part in 1013, or one part in 10,000 ...
- 207: Biology, The Five Major Compounds
- ... genes, which provide the basic blueprint of life. They also direct your growth and development. They do all of this by dictating protein structure. Nucleic acids are composed of carbon, oxygen, hydrogen, nitrogen and phosphorous atoms. There are two major kinds of nucleic acids; they are deoxyribonucleic acid and ribonucleic acid. DNA is the genetic material found within the cell nucleus. It makes up the genes that an organism inherits from ...
- 208: The Atmospheric Ozone Layer
- ... ozone cycle. The trace gases of most importance are hydrogen species (particularly OH and CH4), nitrogen species (NO, N2O and NO2) and chlorine species. The gases not only react directly with ozone or odd oxygen atoms, but also may combine in several different ways in chain processes to interfere with the ozone cycle. Figure 2, presents examples of these reactions. The lifetime of these trace gases is crucial to the chemistry ...
- 209: Cryogenic
- ... will be the way to go. That is, itsy-bitsy, teent-weeny machines, guided by powerful but really small computers, will and fixing any damage done by freezing and defrosting. Since nanomachines can manipulate individual atoms, they can build or fix virtually anything, given raw material and the right instructions. For example, they could rebuild a new body around your brain, reading out the required information from your genetic code. So ...
- 210: The Effectiveness of Eisenhower's First Term: 1953-1956
- ... in Russia and continue the Cold War against the US. Meanwhile, in the United States, the Department of Health, Education, and Welfare was created on March 12, 1953. On December 8, 1953, Eisenhower gave his "Atoms for Peace" speech calling for the cooperation of both the United States and the Soviet Union to help develop a program for the peaceful development of atomic power. Another event that took place during the ...
Search results 201 - 210 of 278 matching essays
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