IN a letter to NATURE of November 25 last Dr. Norman Campbell discusses the problem of the possible consistency of the assumptions about the motion and arrangement of electrons in the atom underlying ...
The terms theory and model are defined, and students learn how a theory remains valid. Atomic Theory: The Development of the Atomic Theory: The terms theory and model are defined, and students learn ...
Scientists from Massey University in New Zealand, the University of Mainz in Germany, Sorbonne University in France, and the Facility for Rare Isotope Beams discuss the limits of the periodic table ...
In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue visits The Verdin Company, a manufacturer of bells, to learn about bronze. Find out how copper ...
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