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Search results 1031 - 1040 of 1576 matching essays
- 1031: Cadmium And Sewage Sludge
- ... Cadmium in Soils As I mentioned within the section Cadmium in the environment, cadmium both occurs naturally within soils and is present due to artificial means. Naturally, cadmium is present in very low concentrations through rock and mineral derivation, organic substances and secondary material. Volcanic action transports cadmium up from the lower crustal regions of the earth to the land surface and to the atmosphere. This soil cadmium content, however, has ...
- 1032: Cannabis Sativa
- ... to produce more oxygen through photosynthesis. Grass (dried marijuana off the stem) is smoked, cooked with a variety of foods from cakes to spaghetti and drunk in many different types of beverages. Most marijuana users roll it in a cigarette called, Joint, doobie, spliff, and a few other nicknames. It can also be smoked in all kinds of pipes and water pipes. These days the open and legal sale of all ...
- 1033: Computer History
- ... ENIAC), which is one of the better-known computers in history, by several years. The MARK I was constructed of mechanical adding machine parts. In order to make the MARK computer perform a task, a roll of punched paper tape had to be fed into the machine. This required lots of time, and it slowed the process down quite substantially. In 1945, however, a computer system was built that could store ...
- 1034: Heroin A Long Dark Path
- ... but surely, like an infection, the drug will tear apart almost any family that it encounters. A long dark path to addiction- Heroin is a drug that can reach anyone. From a middle school honor roll student, to a college grad that made the deans list, to a prostitute on the streets of Los Angeles. The path to heroin starts out very innocently. A rebellious teenager gives into a lot ...
- 1035: Coral Fish
- ... Blue pullers engage in a series of high-speed jumps. Lyretailfish swim in jerky zigzag patters. Frillfish goby undulates frantically against the sand. The Sergeant major rubs its body hard against the side of a rock or coral cavity and nips at these surfaces. (P 92) These are methods by which coral reef fish readies a nest site or signals to prospective mates. Raped head-to-head circling and/or nose ...
- 1036: Chemical Bonding
- ... it contains ions. That doesn't conduct electricity in the solid state because there is not enough room within the molecule. The substance produced by this bond is table salt. Other salts, such as CaCl (rock salt) are formed in the same way and although they have a different crystalline structure they do possess the same physical properties. Covalent bonds, as stated earlier, are when the atoms share electrons with each ...
- 1037: An End To Genetic Diseases
- ... but somewhere between three to six months there is a change. The baby stops doing normal baby things, such as "crawling, making sounds, playing, and smiling. Soon the infant can't sit up anymore, or roll over, or reach for anything" (Brown 63). From "two years on there are chronic respiratory problems" (63). As the disease progresses, it becomes difficult for the child to eat, and "he or she may suffer ...
- 1038: Computers
- ... created what is usually considered the first digital computer. This machine was constructed from mechanical adding machine parts. The instruction sequence to be used to solve a problem was fed into the machine on a roll of punched paper tape, rather than being stored in the computer. In 1945, however, a computer with program storage was built, based on the concepts of the Hungarian-American mathematician John von Neumann. The instructions ...
- 1039: Aids 5
- ... life prospect for an AIDS victim from the time that symptoms begin to show is one to five years. Public awareness of this disease gradually built up as more respected victims began to die: actor Rock Hudson (1985), clothes designer Perry Ellis (1986), choreographer Michael Bennett (1987), photographer Robert Mapplethorpe (1989), and Oscar-winning director Tony Richardson (1991). When basketball superstar Magic Johnson announced in 1991 that he had gotten the ...
- 1040: Autism 3
- Many years ago, I watched a young boy rock back and forth as he worked a crossword puzzle. I tried to distract him from working the puzzle to ride bikes with me. I continuously asked him to play with me, but he kept staring ...
Search results 1031 - 1040 of 1576 matching essays
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