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Papers on Science and Nature
Feeding Yeast
Number of words: 735 | Number of pages: 3.... tablespoons (tbsp.) of the yeast solution. Put ½ cup of corn syrup into bottle one, along with the yeast solution. Into bottle two goes ½ cup of water and ½ cup of flour, and the yeast solution. Next, mix the gelatin according to directions on the package, about one-tablespoon of powder to ½ cup of water. The ½ cup of the gelatin goes into the 3rd bottle, along with 4 tbsp. of the yeast solution. Into the 4th and final bottle put in ½ cup of 100% grape juice and the 4 tablespoons of yeast solution. Slip a balloon over the mouth of each bottle far enough so that no gas can escape. Lay all the bottles on their sides in .....
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Growth Dynamics Of E. Coli In Varying Concentrations Of Nutrient Broths, PH, And In The Presence Of An Antibiotic
Number of words: 2626 | Number of pages: 10.... producing 89,3 01
cells/ml; glucose producing 411,951 cells/mL; lactose producing 477,441 cells/mL
and finally pH 6.0 producing 579,557cells/mL. The remaining four media, after
calculations, produced cell counts greater than the control: 2X with 1,087,009
cells/mL; 0.5X with 2,205,026 cells/mL; pH 8 with 3,583,750 cells/mL and finally
pH 7.0 with 8,090,325 cells/mL. From these results the conclusion can be made
that the environment is a controlling factor in the growth dynamics of E. coli.
This was found through the regulation of pH and nutrient concentrations. In the
presence of the drug/antibiotic, chloramphenicol, cell .....
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The Age Of The Earth
Number of words: 582 | Number of pages: 3.... in Faith). As it turns out, this is what scientists believe to be.
The assumption that the earth is 4.5 billion years old has raised doubts in the minds of some skeptics who question the accuracy of the data used in radiometric dating! They claim that without knowing the exact amount of Uranium in the beginning, most of the calculations will be based on assumptions and if one is to assume the amount of Uranium that existed 4.5 billion years ago, then, there is a chance that calculations would not yield an accurate result, because the initial data is assumed and it is not concrete.
Another problem that radiometric dating .....
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Apple Computers: Biography Of The Cfo
Number of words: 373 | Number of pages: 2.... in every job. All these three qualities can differentiate who you are, and that is the stepping stone of becoming a part of a company like Apple.
Whipfler also gave reasons of why he chose to work for Apple. There are two main reasons why he was so attracted to Apple. First of all, Apple is a multinational company that is interesting. Secondly, the cultural icon attracted him as well. He believed that everywhere he traveled, he always met a person that had an opinion of Apple. Furthermore, he continues to enjoy working for Apple and believes that it has taught not only him, but also many people to grow. Ex-employees of A .....
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The Greenhouse Effect
Number of words: 463 | Number of pages: 2.... These increases are likely to affect worldwide temperatures
dramatically. In 100 years time the average temperature for most parts of the
world will increase from between 2C to 6C if greenhouse pollution continues at
its present rate. This temperature increase would drastically affect the growth
of many different crops and cause the polar ice caps to melt, thus increasing
sea levels to rise up to several metres. If this rise in sea level was to occur
many areas would be much more prone to flooding, and generally much deeper
floods than would be expected nowdays. This flooding would happen paricularly
around coastal regions .....
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Anti-Matter
Number of words: 1209 | Number of pages: 5.... Geneva are working on a device called the LEAR
(low energy anti-proton ring) in an attempt to slow the velocity of the
anti-protons to a billionth of their normal speeds. The slowing of the
anti-protons and positrons, which normally travel at a velocity of that
near the speed of light, is neccesary so that they have a chance of meeting
and combining into anti-hydrogen.
The problems with research in the field of anti-matter is that when
the anti-matter elements touch matter elements they annihilate each other.
The total combined mass of both elements are released in a spectacular
blast of energy. Electrons and positrons come .....
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Thallium
Number of words: 457 | Number of pages: 2.... detectors. Thallium
sulphate used to be widely used as a pesticide and an ant killer. It was
odorless and tasteless and worked well, but it was found to be too toxic.
Thallium slats which burn with a bright green flame are used in flares and
rockets. Thallium is the 60th most abundant element in the Earth’s crust.
There are 3.6 parts of Thallium in every million parts of the Earth’s crust.
Thallium compounds are extremely toxic. The negative effects are cumulative and
can be taken in through the skin. Poisoning from Thallium takes several days to
effect you and when it does, it hits the nervous system. Thallium should .....
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Mans Effect On The Environment
Number of words: 2105 | Number of pages: 8.... on the local environments. Oil is extremely dense which means it floats on top of the water and can kill fish and birds, ruin beaches but nothing as yet has been invented to deal with this major problem. Dangerous metals such as mercury, arsenic and lead are also dumped into the sea. All of these examples have the ability to kill and damage the environment around it.
Agricultural Environments : Unwanted plants or insects are nowadays killed with by herbicides and insecticides, in this case chemical rather than biological are used. Pesticides have the ability to damage the local environment, while herbicides may kill wi .....
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Endangerd Species
Number of words: 1562 | Number of pages: 6.... that you are not allowed to hunt or kill any animal that is in danger of extinction.
Government Involvement
Only since the 19th century has there been worldwide concern about the case of species in their natural environments. Finally in 1916 they made a law called Migratory Bird Treaty. They had this law in United States, Great Britain, Canada, and later in Mexico. This law was made so that people can not kill animals that are endangered. This law did not work that well because the animals that were endangered were not put in zoo’s. People still killed theses animals not caring that they were in danger of becoming extinct. .....
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Greenhouse Effects Speech
Number of words: 534 | Number of pages: 2.... gas concentrations increasing? Scientists generally believe that the combustion of fossil fuels and other human activities are the primary reason for the increased concentration of carbon dioxide. Energy burned to run cars and trucks, heat homes and businesses, and power factories is responsible for about 80% of society's carbon dioxide emissions, about 25% of U.S. methane emissions, and about 20% of global nitrous oxide emissions. Increased agriculture, deforestation, landfills, industrial production, and mining also contribute a significant share of emissions.
Rising global temperatures are expected to raise sea level, a .....
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