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The Advances section of Scientific American 's March issue discusses how reducing soot emissions could be a quick, if temporary, fix for global warming; explains why cramming for tests doesn't work; and examines physicists' latest efforts to make an object disappear. To learn more about these, and all our other stories, click on the links below

(PhysOrg.com) -- To learn more about how the sun works, scientists study particles that are emitted from it into space due to thermonuclear reactions that occur inside; by applying known physics principles, they can then deduce which sort of nuclear reactions are taking place. As one example, researchers have been able to identify high energy proton to proton interactions that are described as pp neutrinos by detecting them when they reach Earth.