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Chemistry
As flight 143, a twin engine 767, was passing over Red Lake on its was
to Edmonton, Canada, the left front fuel pump warning light went on. There were
a few possibilities for this to happen, such as the fuel pump failing, a fuel
line clogging, or a empty fuel tank. The former two were easily dealt with,
since the plane could fly without one fuel pump. However, the last possibility
was horrifying. After a few minutes, the second fuel pump in the left wing
began to blare. It would be too much of a coincidence for two fuel pumps to
independently fail, or two fuel lines to independently clog, so it was apparent
that the left tank was out of fuel. Quickly, the pilots decided that getting to
Edmonton was out of the question. The nearest large airport was at Winnipeg, so
they radioed ahead and changed their course. In a few minutes, all four of the
fuel pumps had failed. The worst possible news, they were out of fuel. In a
few more minutes the engines stopped running, and all of the high tech
instruments became useless.
They realized that they could not even make it ...
As I am sure all of you know, we have recently been able to see a new but not permanent additon to the night sky. This addition is known as Hale-Bopp, a comet that is about 122 million miles (about 1.3 times the distance of the sun to the earth) from the earth and is approximately 25 miles wide. Hale-Bopp was discovered on July 23,1995 by two scien...
As seen in observation and analysis; my hypothesis was proved to be correct and density does increase if the sugar concentration is increased. The data in the table and the strong linear relationship on the graph shows that grams per each millilitre increase as the ratio of sugar to water increases in the solution. In this experiment the margin fo...
Schizophrenia is one of our most important public health problems. It is a common, tragic, and devastating mental illness that typically strikes young people just when they are maturing into adulthood. Once it strikes, morbidity is high (60 percent of patients are receiving disability benefits within the first year after onset), (1) as is mortality...
America Endangered species are plant and animal species that are in danger of extinction, the dying off of all individuals of a species. Over 19,000 plant species and 5000 animal species around the globe are classified as endangered, and many thousands more become extinct each year before biologists can identify them (Microsoft 1). The primary ca...
This paper looks at the controversial issue of climatic change. In particular, it develops the question of if and why earth's climate is changing? The roles of man, naturally occurring trends, and earth's cycles are considered, and an outlook for what can be expected in the near and distant future is given. 'The uneasiness of modern man arises f...
Flowers seem to pop up all over Pennsylvania. Why can't they pop up in my garden? Through research, I have learned that wildflowers flourish because they are in an ideal location, and if I can recreate these conditions successfully, flowers will thrive in my garden as well. I am going to explain to you the different types of flowering plants and...
? Farmers and ranchers hate them. Scientists learn from them. Families enjoy watching them. Whatever their viewpoint, most people living on the prairie have a strongly-held opinion on prairie dogs. Prairie dogs are members of the rodent family, the largest group of mammals in the world. They live in colonies on the prairie that range in size fr...
Chemistry 104 Prof. Holme In 1951 Carl Djerassi, with the Mexican pharmaceutical company Syntex, developed the first oral contraceptive by synthesizing and altering the natural hormone Progesterone into a superpotent, highly effective oral progestational hormone called "norethindrone". Admittedly, the dynamics and importance of this find were as...
The Africanized Honey Bee is actually a variety of honeybee derived by hybridization from African honeybees naturalized in the western hemisphere. Because they are highly defensive and will attack perceived intruders more readily than the common European honeybee, they are also known by the popular name of '.' Brazilian scientists imported African...
The Chesapeake Bay is America's largest estuary and one of the world's most productive. The Bay is home to over 2,700 species. It draws water from over 150 rivers, streams, and creaks, receiving roughly 70,000 cubic feet of water every second. That water reflects the surrounding land use activities of the District of Columbia, parts of New York, Pe...
Venus flytrap What does it eat? Flies and other flying insects supplement its nutrition from the soil on which it lives. Sometimes if there is a large it will eat a small frog or toad. The Venus flytrap lives on soils that are poor in nutrients, and in particular nitrogen compounds, such as nitrates, that the roots can absorb. The insect "diet"...
according to by Anna Selby is derived from the ancient practice of using natural plant essences to promote health and well-being. It consists of the use of pure essential oils obtained from a wide assortment of plants, which have been steam distilled or cold-pressed from flowers, fruit, bark and roots. is also the therapeutic use of aromatic su...
Cancer Information: Larynx Cancer Larynx cancer is a cancer that effects the larynx, or voice box, in people; it can also be called laryngeal cancer. The cancer occurs most frequently in people over the age of fifty-four and in black males. The larynx is approximately two inches long and is located below the nose passage way and above the trache...
Apollo 13 (AS-508): Houston, we have a problem. The Apollo 13 mission was launched at 2:13 p.m. EST, April 11, 1970 from launch complex 39A at Kennedy Space Center. The space vehicle crew consisted of James A. Lovell, Jr. commander, John L. Swigert, Jr., command module pilot and Fred W. Haise, Jr. lunar module pilot. The Apollo 13 Mission was...
