1800-1900.shouldice

(1766- 1844)**
 * __ John Dalton __

but he is also a physicist and meteorologist. We was a Quaker from Cumberland, England and by the age of 15 he was running a Quaker school with his brother. Dalton is most known for the atomic theory, law of multiple proportions, law of partial pressures and Daltonism. In his atomic theory he had five main points and the most important parts of them are: all atoms of a element are the same and the different elements are different, all elements are made up of atoms, only chemical reactions chance atoms, and elements can be grouped into chemical compounds. Dalton died of a stroke at the age of 77 but his legacy still lives on today almost two hundred years later. Dalton is one of the only scientist that I knew from this project before starting this project. This is because he is famous because of impact that he left in science.** The page on the left is a list of the "Dalton Symbols"**
 * John Dalton is an English chemist and he is the first one that we have seen from England,
 * This is two page out of his book "A New System of Chemical Philosophy"

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 * Sir William Crookes[[image:http://www.ssplprints.com/lowres/43/main/10/88921.jpg width="259" height="220" align="right"]]** __
 * (1832-1919)

William Crookes was born in London, England into a family where he was the oldest child. He had a very liked personality and could easily communicate his ideas to other people when he was working in the field of chemistry. In chemistry he did a lot of things that are still used today. One of them is the elements that he discovered and are in the Table of Elements today. The two elements are helium and thallium. He also invented the vacuum tubes and these made it possible to study topics that were unable to be studied previously. Also through his invention of the spinthariscope we can now study nuclear radioactivity. It is needless to say that William Crookes did a lot in the field of chemistry and at his death he left behind three sons and a daughter.**



** This is the Crooks Tube above and it detected cathod rays adn canal rays. Also with the Crooks tube came the invention of the electron. **

(1834-1907)
 * __ Dmitri Mendeleev __

Dmitri Mendeleev was a Russian chemist from Tobolska, Russia and like some of the other scientist he is from a huge family. He is the youngest of 14 children in his family. Dmitri was not a solid human being he was in love with his future wife and when he proposed to marry her he said that if she did not agree then he was going to kill himself. Even though he was not all there he did do alot for chemistry. The most important thing that he did was he invented the Periodic Table of Elements. This may sound easy but it was not and from this invention people were able to predict other elements that we use today. He also did work in hydrodynamics and here at Massachusetts Maritime Academy we use this everyday in the way water will effect ships in tight channels. One other topic that he successed in was the he brought the metric system to Russia and this is the only system of measurement that is used in Russia today.**