referring+to+atoms
41Atomic nucleus — A figurative depiction of the helium 4 atom with the electron cloud in shades of gray. In the nucleus, the two protons and two neutrons are depicted in red and blue. This depiction shows the particles as separate, whereas in an actual helium atom …
42Early Islamic philosophy — or classical Islamic philosophy is a period of intense philosophical development beginning in the 2nd century AH of the Islamic calendar (early 9th century CE) and lasting until the 6th century AH (late 12th century CE). The period is known as… …
43History of optics — Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek and Indian philosophers, and the development of geometrical optics in the Greco Roman… …
44Isotope — This article is about the atomic variants of chemical elements. For the British jazz fusion band, see Isotope (band). Isotopes redirects here. For the minor league baseball team, see Albuquerque Isotopes. Isotopes are variants of atoms of a… …
45Blacklight Power — Inc. Industry Chemistry Founded HydroCatalysis Inc.[1] in 1991.[2] …
46Glossary of philosophical isms — This is a list of topics relating to philosophy that end in ism . compactTOC NOTOC A * Absolutism – the position that in a particular domain of thought, all statements in that domain are either absolutely true or absolutely false: none is true… …
47Conatus — This article is about a term in philosophy. For the Zola Jesus album, see Conatus (album). For the species of fish, see Platycephalus. Conatus (Latin for effort; endeavor; impulse, inclination, tendency; undertaking; striving) is a term used in… …
48Direct and indirect realism — Direct realism argues we perceive the world directly For representationalism in the arts, see Realism (visual arts). The question of direct or naïve realism, as opposed to indirect or representational realism, arises in the philosophy of… …
49Rutherford model — The Rutherford model or planetary model was a model of the atom devised by Ernest Rutherford. Rutherford directed the famous Geiger Marsden experiment in (1909), which suggested to Rutherford s analysis (1911) that the Plum pudding model (of J. J …
50Steven Chu — 12th United States Secretary of Energy Incumbent Assumed office January 21, 2009 Preside …
