This leads to a description of the development of the modern atomic theory as a result of the contributions of Democritus, Dalton, Thomson, and Rutherford. Aired 01/03/2002 | Rating NR.

Did you know that the concept of atomic theory was first explored over 2,500 years ago in ancient India? Long before modern science, an Indian sage named Acharya Kanad proposed the idea of ...

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 ...

1803: English chemist-physicist John Dalton starts using symbols to represent the atoms of different elements. Dalton, considered the father of modern atomic theory, made a logbook entry that day ...

Many modern atomic clocks use oscillations of strontium atoms rather than cesium to measure time; the most precise of these is accurate to within 1/15,000,000,000 of a second.

Albert Einstein and his equation E=mc² are famously connected to the modern atomic age. But as nuclear historian Alex Wellerstein writes in this counterfactual account of history, the great ...

Niels Bohr was one of the foremost scientists of modern physics, best known for his substantial contributions to quantum theory and his Nobel Prize-winning research on the structure of atoms. Born ...

Dalton, considered the father of modern atomic theory, made a logbook entry that day titled, "Observations on the Ultimate Particles of Bodies and their Combinations." ...

This article was originally published with the title “ The Atomic Theory and the Development of Modern Chemistry ” in SA Supplements Vol. 56 No. 1438supp (July 1903), p. 23043 doi:10.1038 ...

MANCHESTER celebrated last week, just a little prematurely, the centenary of John Dalton's atomic theory. It was on September 6, 1803, tnat he drew up in his notebook his first table of weights of ...