Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is ...

This spurred the United States to launch the Manhattan Project to develop the atomic bomb. Shortly after Bohr's return home, the German army occupied Denmark. Three years later Bohr's family fled ...

Photo: Atomic bomb test explosion in Alamagordo ... With the help of Niels Bohr, she got a position in Stockholm. From there, Meitner and her nephew Otto Frisch proved that the uranium atom ...

In 1940, nearly 30 years after Danish physicist Neils Bohr explained how light energy affects the electrons orbiting atomic nuclei, Coleman Instruments produced an instrument to take advantage of this ...

So Bohr and his colleagues wanted to find a way to build an atomic clock that doesn't lose atoms, and for this they tapped into superradiance. This is when a group of excited atoms synchronizes ...

However, there was still a difference between the atomic number of the atom and the atomic mass. Bohr and other scientists knew that there also had to be a neutral particle the same size as a ...

In 1927, Werner Heisenberg was in Denmark working at Niels Bohr's research institute in Copenhagen. The two scientists worked closely on theoretical investigations into quantum theory and the ...

This atomic model has changed over time ... Most of the mass of an atom is found in the nucleus. 1913 Bohr In-depth work on Rutherford's model showed it had limitations. The electrons should ...

Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is ...