|
Enter your query below to search our database containing over 50,000+ essays and term papers
Search results 2061 - 2070 of 4688 matching essays
- 2061: Valves
- ... One of the more common valves found in industry is a gate valve. A gate valve is typically operated in the wide-open, or completely shut position. This type of valve is used where flow rates are not restricted. Globe valves are the second most common valve used I industry. A globe valve places a movable metal disc in the path of a process flow. This type of valve is most ...
- 2062: Alchemy
- ... Bacon and in Spain itself by Raymond Lully. Later, in French alchemy the most illustrious names are those of Flamel (b. ca. 1330), and Bernard Trevisan (b. ca. 1460) after which the center of of interest changes to Germany and in some measure to England, in which countries Paracelsus, Khunrath (ca. 1550), Maier (ca. 1568), Norton, Dalton, Charnock, and Fludd kept the alchemical flame burning brightly. It is surprising how little ...
- 2063: Creationism vs. Evolution
- ... contents of that book completely, one must have unwavering faith in the validity of its concepts and the precepts upon which its religion is based. One of the striking and perhaps most intriguing points of interest that I have stumbled upon is the lack of education of creationism in schools. If the point was so very valid and without skeptical doubt, then why is it not being taught to our children ...
- 2064: Bioethics of Cloning
- ... Dolly’s success prove otherwise. The issues of cloning have been around for a long time, starting with the publication of Joshua Lederberg’s 1966 article on cloning in the American Naturalist, and the publics interest has been perked by many sci-fi books, films, and movies including Aldous Huxley’s 1932 novel “Brave New World,” 1973’s “Sleeper,” the 1978 film “The Boys from Brazil,” and most recently, the movie ...
- 2065: Frogs
- ... young grows in a sack in the skin of the mothers back. One type of Australian frog lays its eggs in its stomach and coughs up the baby frogs after they have hatched. V. Special interest Scientists know that frogs are amphibians but they didn't always know that. They used to think that frogs could feel hot and cold and had to stay away from it. Scientists have gotten smarter ...
- 2066: Water Pollution
- ... water from sewage treatment plants, agricultural land or other sources, eutrophication occurs. During this process, nitrate-containing fertilizers and phosphate-containing detergents get into surface water and cause algae and phytoplankton to grow at tremendous rates. This creates toxic algae blooms. As the algae die, decomposing bacteria depletes oxygen from the water causing the sickness and death of many organisms. The most dangerous pollutants of water are toxic chemicals. Many of ...
- 2067: Are UFOs Real?
- ... majority of his life to collecting odd occurrences in the news. He was very amazed with studying unexplainable things that would occur in nature. Fort seemed to find it amusing that scientist had such little interest in such phenomena. Fort explained that, "These events were the result of beings from some higher, extraterrestrial civilization fishing for us (Menzel and Taves 124)." For all we know this man could have made many ...
- 2068: Green Fluorescent Protein Purification
- ... lysate, saving aliquots from each purification step for later analysis. Our GFP isolation scheme employed immobilized-ion affinity chromatography. In this process the lysate is passed through an affinity column such that the protein of interest binds to beads in the column and other proteins are weeded out by running various washed through the column. Finally, the protein is eluted from the column and collected. We used a cobalt-IMAC resin ...
- 2069: Photosysthesis Experiment
- ... it is best to describe the actual color changes in the test tubes. Test tube one showed no changed in color. The rest of the other test tubes did show a discoloration although at different rates and to different extent. Test tube two became the clearest fastest. Test tube four followed it a slower rate of discoloration. Finally, test tube three showed a very slight change in its color at a ...
- 2070: Plan and Purpose (Creation) or Time and Chance (Evolution)?
- ... could identify two: caloric (heat) and electricity. Lamarck believed that his “ subtle fluids” were involved in both kinds of change - the “tendency to progression” and the striving to fit local conditions. Electricity was of great interest to scientists at the time, and it appealed to Lamarck because it could be felt but not seen. Lamarck used snails as an example of how “subtle fluids” worked. Snails have poor vision, and he ...
Search results 2061 - 2070 of 4688 matching essays
|
