16 December 1920: Scientists grapple with Max Planck’s quantum hypothesis. Kerri Smith This is the Nature PastCast, each month raiding Nature ’s archive and looking at key moments in science.

Modern physics, and particularly the quantum theory — the discovery of Max Planck, the centennial of whose birth was celebrated last year —has raised a series of very general questions ...

In the early 1920s, Bose was studying Max Planck’s quantum theory, which dealt with the energy distribution in blackbody radiation.

The authors-- one a philosopher, the other a physicist-- draw on their training and six years of co-teaching to dramatize the quantum's rocky path from scientific theory to public understanding while ...

In Einstein and the Quantum: The Quest of the Valiant Swabian, theoretical physicist A. Douglas Stone writes that whereas Einstein is best known for his theory of relativity, his truly ...

Energy always has an upper limit Currently, scientists believe that energy can, in theory, be released at infinitely high levels. This makes some equations in quantum gravity impossible to solve.

How can the tiniest particles and the vast structure of the universe be explained using the same kind of mathematics? This puzzle is the focus of recent research by mathematicians Claudia Fevola ...