Philip Ball looks at how a little-known paper by Niels Bohr demonstrates the turmoil in physics on the brink of quantum ...

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 ...

Bohr began to work on the problem of the ... His model was a huge leap forward in making theory fit the experimental evidence that other physicists had found over the years. A few inaccuracies ...

The theory dates back to the 17th century when Isaac ... This is known as the complementarity principle and was developed by Niels Bohr in the mid 1920s. It states that no matter what one decides ...

During the experiment, participants spent four hours in the laboratory, where they could only communicate through a limited number of defined and standardized messages in the form of emails and ...

When an electron dropped from a high-energy orbit to a lower-energy one, it gave out light with an energy equal to the ...

Standard quantum theory as developed by the likes of Niels Bohr and Werner Heisenberg in the 1920s is fine for describing the workings of individual particles in isolation and at slow speeds.

and Neils Bohr. Modern physics stands on two pillars: Einstein’s theory of relativity and the Standard Model of particle ...

Bohr's 'solar system' model of the atom is the ... Chadwick used a version of Rutherford's experiment, using a sheet of beryllium and a paraffin block instead of gold foil. He was able to prove ...

The most prominent answer in the 1930s came from the Copenhagen interpretation, developed in the Danish city by luminaries of quantum theory, Niels Bohr and Werner Heisenberg. This says that there ...