The theory of the expanding universe was first proposed by Belgian physicist and priest Georges Lemaître in 1927. Lemaître suggested that the universe is not static but expanding, based on his interpretation of Einstein’s general theory of relativity and observations ...

The discovery of radioactivity is credited to French physicist Henri Becquerel in 1896. While studying phosphorescent materials, Becquerel investigated whether certain substances emitted radiation similar to X-rays, which had been recently discovered by Wilhelm Roentgen. He experimented with uranium salts ...

Madame Marie Curie made several groundbreaking contributions to science, particularly in the fields of physics and chemistry. She is best known for her pioneering research on radioactivity, a term she coined. Along with her husband Pierre Curie, she discovered two ...

The first scientist to be awarded two Nobel Prizes was Marie Curie. She received her first Nobel Prize in Physics in 1903, shared with Pierre Curie and Henri Becquerel, for their work on radioactivity. This groundbreaking research laid the foundation ...

The exchange theory of nuclear forces was first proposed by Japanese physicist Hideki Yukawa in 1935. Yukawa suggested that the strong nuclear force, which binds protons and neutrons together in the atomic nucleus, arises from the exchange of particles between ...