居里夫人 英文

• Discovered that if you have a certain amount of uranium, then you get a certain amount of ray intensity, no matter what you did to the material
Uranium Continued
Radium Continued
•Her major studies showed that radium gave out light and heat, as well as being able to damage living flesh
•In 1910 Marie isolated pure radium metal
•Radium is silver-white in color
•Today it is used in small amounts as a cancer treatment and in fluorescent paint
Pierre’s Death
•Pierre Curie was killed tragically by a horse-drawn cart in 1906
Teaching
•It was decided that Marie should take over Pierre’s teaching job at the Sorbonne in 1906 •This made Marie the 1st woman professor at any French university
Early Life cont.
•Her father was a professor of math and physics
•Her mother was a pianist, singer, and teacher
•Her mother died of tuberculosis when Marya was 11
•Marie discovered that there was something going on inside the atom that created the rays, she named this effect “radioactivity”
Radioactivity
•She discovered that the only known elements that were radioactive were uranium and thorium
Paris Radium Institute
•In 1907 Marie convinced the French government to fund a radium research institute, to be used mainly for medical research
Health Problems
Radium cont.
•In order to obtain one decigram of pure radium chloride salt, Marie had to sift through hundreds of tons of pitchblende
Properties of Radium
Polonium
•Pierre stopped his work on crystals to work with Marie
•Marie continued her work, but with a different substance, pitchblende
Polonium Cont.
•In July 1898 they extracted a new element that was even more radioactive than uranium
•They called this new substance polonium in honor of Marie’s homeland
Radium
•In January of 1899 another new element was discovered that was over 1 million times more radioactive than uranium, it was named radium
•Marie believed that working with radium was not a danger to her health, however, doctors today have proven that she was very wrong
Thesis Work
•She decided that her thesis for her doctorate would be on Henri Becquerel’s mysterious “xrays” that are given off by uranium
Work with Uranium
Madame Marie Curie
& The Science of Radioactivity
By Claire Goelst
Early Life
•Born on November 7, 1867 in Warsaw, Poland •Given name was Marya Sklodowska, but her family and friends called her “Little Manya”
Schooling
•Graduated high school when she was 15
百度文库
• In 1891 she enrolled at the Sorbonne in Paris as “Marie” and graduated in 1893
Pierre
• She married Pierre Curie in July 1895