The History of Chemistry Essay examples

The History of Chemistry Essay examples

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The earliest knowledge of chemistry was in 3500 B.C in Egypt and Mesopotamia. Chemistry was concerned anything that was pottery, dyes or crafts that were developed but not considerable skills because no one truly understood its purpose. The basic idea of elements or compounds were first formulated by Greek philosopher during 500 to 300 B.C when people believed fire , water, earth, and air combined to form all living and non-living things. In the beginning of Christianity an ancient Egyptian and Greek philosopher were fused into the new ideas of science, starting with little experiments such as turning metal into gold or imitation of precious gems. Later on people such as Robert Boyle, Robert Hooke and John Mayow were just the few people who discovered specific things in history.
Boyle was the founder of modern chemistry. He performed experiments dealing with pressure, using an air pump and discovered the volume and pressure in gases. Hooke gave the first rational explanation of combustion; as a combination with air. Mayow studied animal respiration. As they all worked together to figure out the theory of combustion, two Germans named J.J Becher and G.E Stahl introduced the false phlogiston theory of combustion, which came to a theory that all substance phlogiston is contained in all combustible bodies then escapes when the bodies burn. The discovery of gases and analysis of air as a mixture in gas occurred during the phlogiston period. Carbon dioxide first came about by J. B van Helmont then later discovered by Joseph Black in 1754. The next element was hydrogen; hydrogen was discovered by Boyle but was carefully studied by Henry Cavendish, which was called inflammable air. Cavendish also found the explosion of hyd...


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...lthough radiation from the waves may cause cancer and other illnesses, the benefits make it seem like nothing. There are plenty ways to prevent radiation from being harmful, so it really is not that much of a problem. Using X-rays can kill bacteria that can cause many different sicknesses from food so that is always a positive to any invention. Without the help of a few main scientists, doctors, and normal people, the X-Ray would have never been possible, so thanks to them you can find out if your arm is broken or it is just a bone bruise. From torn muscles, to torn ligaments to pulled muscles, the CAT scan and MRI (both were made via the X-Ray) would have never been invented in the first place. Appreciate the items you have, because without them you never know where you would be. I think we can all agree that the X-Ray was a prominent invention in our day’s time.

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