Physics

The nature of light

Atomic theory and models of the atom

Radioactivity

Ether

Greenhouse effect and global warming

The age of the earth

Elmer Imes and infrared spectroscopy

The second African American to earn a PhD in physics, Imes’ work in infrared spectroscopy pinpointed the distances between atoms in molecules and helped verify quantum theory...

Sophie Germain, pioneer in elasticity and number theory

Germain’s lifetime of contributions to mathematics ranged from elasticity theory to a new approach to Fermat’s Last Theorem––but as a woman, she had been barred from studying at the École Polytechnique...

Emmy Noether and a revolution in algebra

Noether was recognized as one of the most important mathematicians of her time, but, as a Jewish woman, the Nazi’s rise to power forced her from her (already precarious) university position in Germany...

Chien-Shiung Wu and nuclear physics

Chien-Shiung Wu was a Chinese immigrant to the United States who participated in the Manhattan Project. She made major contributions to subatomic physicis...