SOLAR ENERGY
Ever since the dawn of time, the sun has been a resource we cannot live or do without, so its not such a shock that man has come up with the idea of solar energy. Solar energy had many uses. Some can be dangerous and some, a very valuable asset to the modern world. Solar energy is energy derived from the sun in a form of ultra-violet rays. Its was first applied to use in 212 B.C., by the Greek genius Archimedes. Solar energy was used to defend the harbor of Syracuse against the Roman fleet. Archimedes used a mirror or "burning mirror" as they had called it, to set fire to the ships of the Roman fleets while standing on shore. It wasn't until 1615 when Salomon de Caux constructed the first solar device; a solar engine. His device was made of glass lenses, supporting frame, and an airtight metal vessel containing water and air. This produced a small water fountain when the air heated up during operation. This was considered to be more of a toy than a device, but it was the! first published account of the use of solar energy since the fall of the Roman Empire Some other use of solar energy after that was the solar roof and the solar oven. In a solar roof system, water is contained in a clear plastic bag and it
To be on! the safe side for sure, you should apply it every time you are in the sun. The laser often consist of polished ruby rod that has a solid mirror at one end, and a high voltage flash tube wound around the rod. We have electricity, solar power, nuclear power, and propane. Astronomers first discovered UV rays in the 1960's. In 1837, and astronomer from England named John Fredrick Herschel introduced to the world a solar oven. During the summer, a slab o!f foam insulation was rolled back at night, and the water would become cold through the night sky evaporation. As for us, we still prefer solar over electricity any day. This means that the light prod!uced is orderly, with all the excited atoms making up the laser beam that is emitting their flashes in unison. Why you ask, because think of what will happen when we lose all of our other source of energy. Every other power source can be destroyed but the greatest power of all is the sun. There is basically a lot of solar powered inventions in our society today. He constructed it as a mahogany, painted it black and buried it in the sand for purposes of insulation. During the winter, the movable insulation was rolled back in the daytime, which allowed for it to collect heat. You can get skin cancer if you are not careful about how to spend and protect yourself from the sun.
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Acceptance Essays
