Chemistry

He was a Greek philosopher born in Thrace who is mostly responsible for coming up with the atomic theory of the universe.

He was a Greek philosopher born in the city of Stagira who refuted Democritus and believed in four elements which were water, air, fire, and earth. He also tutored Alexander the Great and because of his theory it led to 2000 years of bogus science.

In 332 BC Alexander the Great had conquered Egypt and Greek philosophers became interested in Egyptian religion and their views on the four element and then merged their views.

600 AD Arabs then occupied Egypt and further merged their views and then spread it to the west in 700s. Metals were made up of mercury and sulfur and gold was known as the perfect metal and the others known as baser metals that could be turned into gold by a philosophers stone. Alchemists then tried to use this concept to obtain spiritual purification and immortality.

The alchemists in Europe eventually split into two different groups, one that studied new compounds, reactions, and chemical processes, as well as inventing distillation, percolation, extraction, rudimentary, and chromatography and their studies are now known as modern day chemistry. The other group decided to look into the spiritual side of alchemy to try and achieve immortality. This is now known as modern day alchemy.

Vitalism states that living organisms are different from non living entities because the entities contain a vital spirit. Living things are then said to be controlled by different things then inanimate things.

The phlogiston theory is a scientific theory that stated that a fire like element called phlogiston is contained within combustible bodies and realeased during combustion. The theory was first stated by Johann Joachim and the theory attempted to explain combustion and rusting which are now known as oxidation.

He is known as the father of modern chemistry. He also dispelled the phlogiston theory by proving that oxygen causes combustion. He also discovered the law of conservation of mass.

He was one of the founding fathers as well as an inventor who made many contributions to life. He invented bifocals, the Franklin stove, as well as figuring out that electrical charges can be negative and positive.

He is a French chemist who is best known for coming up with the law of definite proportions which states that chemical compounds always combine in constant proportions.