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Centuries ago the Greek mathematician Archimedes used sunlight to set fire to invading ships. In the following paper you will read more about the wonders of its many uses and how it works. You may also find facts like why it was invented, how it started, how it is used today, and how it is hoped to be used in the future.
has been used for a long time for example in 1772 a French scientist named Antoine Lavoiser constructed a solar furnace hot enough to melt most metals using a huge lens that focused sunlight into a small area. Using this he was able to create heat that at that time only sunlight could provide. Also in Chile a huge water desalting system worked well for nearly 40 years. Ocean water was pumped into troughs. Sunlight that was shining through panes of glass evaporated the water that then condensed water with no salt in it on the glass, which was then collected by running into other troughs.
Early 1960's when we found out how to put satellites and astronauts into orbit a source of power was needed to be found that would ...
The Whether the source of radiation is natural or man made, whether it is a small dose of radiation or a large dose, there will be some biological effects. Radiation causes ionizations of atoms, which will affect molecules, which may affect cells, which may affect tissues, and so on. Although most people tend to think of biological effects in te...
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...
Lithium (Li) Atomic Number: 3 Atomic Mass: 6.941 Description: Lithium is a soft, silvery-white metal which reacts vigorously with water and has the lowest density of all metals. It comes from the alkali metal group which is found on the periodic table of elements. Discovery and Naming: Lithium was discovered by Johan August Arfvedson in...
1) Russo, Ethan M.D. (1998). Cannabis for migraine treatment. Pain, 76, 3 ' 8. This particular journal entry is actually a historic review on the benefits of utilizing cannabis for the medicinal use of relieving migraines. In an attempt to find a journal that might actually have a case study or something on the affects of marijuana on a human, I...
The human body is divided into many different parts called organs. All of the parts are controlled by an organ called the brain, which is located in the head. The brain weighs about 2.75 pounds, and has a whitish-pink appearance. The brain is made up of many cells, and is the control centre of the body. The brain flashes messages out to all the...
