Marie Sklodowska

Famous scientist

Marie Curie

Born as Marie Sklodowska, she was born in Warsaw, Poland at November 7 1867. She was interested in Henri Becquerel’s work, a French physicist who had discovered that uranium rays cast off rays that were weaker than x-ray which was found by Wilhelm Roentgen. She had took Becquerel’s work further by doing her own experiments on uranium rays and had discovered that no matter the uranium’s form or condition, the rays still reminded constant. After the experiment, she had theorized that the rays had came from an atomic structure. With her husband, Pierre Curie, they had discovered a new radioactive element in 1898 and named it polonium which was named after their native country Poland. In the pitchblende (a form of mineral uraninite occurring in

brown or black pitch-like masses that contains radium.) they had found another radioactive material and named it radium. In 1902, the Curies had produced an unique chemical elements which was made by a decigram of pure radium. At 1903, Curie had made history by being the first woman to win the Nobel Prize in physics and had won prestigious honor along with her husband and Becquerel. With the Nobel Prize win, she and her husband developed an international reputation for their scientific effortsvbwefwgvfgwvgwwgg and used their prize money to continue their research. She had died on July 4 1934 because of aplastic anemia that was caused by being exposure to radiation for lengthy period.

Antoine Lavoisier

Antoine Lavoisier was born in Paris, France at August 26 1743. He was the only son to his aristocratic and wealthy father who was lawyer. He was going to follow his father footsteps and become a lawyer but had discovered his love for science when he was still in college. Lavoisier worked in various government positions and was elected to the Royal Academy of Science in 1764. Lavoisier had created a system of naming chemical compound which were from multiple elements and also had named the element hydrogen, hydrogen. While experimenting he had found that water was a compound made of hydrogen and oxygen. Before his discovery, scientist had believed that water was an element. Lavoisier had also proven that the phlogiston theory was wrong. The phlogiston theory had said that fire or combustion, was made up of an element called phlogiston. Scientists in those time thought that when things burned they released phlogiston into the air. But Lavoisier had found (by demonstrating with an element called oxygen which played a major role in combustion) no mass is lost in a chemical reaction. This became known as the Law of Conservation of Mass and is one of the most important and basic laws of modern chemistry and physics. Lavoisier had also written the very first chemical textbook named Elementary Treatise of Chemistry which included a list of elements, the most recent theories and laws of chemistry (including the Conservation of Mass), and the right theory about the existence of phlogiston. Because of French Revolution, Lavoisier was branded as a traitor as he had worked as a tax collector for the government. On May 8, 1794 he was executed by guillotine and after a year and a half later he was killed. The government said he