A new theoretical approach is proposed to explain the nature of the well-known narrow and intense optical J-band of J-aggregates of polymethine dyes. The old approach proposed by Franck and Teller in ...

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

Bohr turned to Planck's quantum theory to explain the stability of most atoms. He found that the ratio of energy in electrons and the frequency of their orbits around the nucleus was equal to ...

The year was 1900 and Max Planck was a young physicist working on the problem of blackbody radiation . This was an intense ...

Max Planck’s quantum theory has not only deepened our understanding of reality but also transformed technology. From quantum computing to cryptography, the principles of quantum mechanics ...

The Quantum Theory Concerning the early years of this fundamental concept of modern physics: how Max Planck formulated it at the turn of the century and how others enlarged it up to 1923 By Karl K ...

These were the laws of quantum mechanics, and they got their name from the work of Max Planck. "An Act of Desperation ... For example, there is a theory by Werner Heisenberg called the Uncertainty ...

He attempted to explain with Maxwell’s theory of electrodynamics why the radiation in ... of the frequency under consideration and a constant h, today known as Planck’s quantum of action. Planck ...

from which he formulated Planck's radiation law and thus founded quantum theory, which revolutionised modern physics. And for which he was awarded the Nobel Prize in 1918. Planck was also fortunate in ...

Yet, quantum mechanics is far from complete. Despite its success in explaining a wide range of phenomena, questions remain.