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Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… … Wikipedia
Gravitomagnetism — (sometimes Gravitoelectromagnetism, abbreviated GEM), refers to a set of formal analogies between Maxwell s field equations and an approximation to the Einstein field equations for general relativity, valid under certain conditions. For instance … Wikipedia
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium

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