Word: physicist
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Dates: during 1970-1979
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...Canadian and American agencies are launching 34 atmospheric rockets to look for other surprises. The U.S. Navy, for example, wants to learn how electrical changes in the ionosphere, some apparently connected to fluctuations in solar radiation, disrupt radio contact between ground stations and satellites. In a NASA-owned Learjet, Physicist T. Allan Clark of the University of Calgary will study the sun's eruptions, seeking links between this activity and terrestrial climate...
What he does best is simplify science for those who have little or no scientific training. But he also does well with specialists. Astronomer-Author Carl Sagan considers Asimov "the greatest explainer of the age." Says a Harvard research physicist: "Frankly, I read the man so that I can explain my own work to friends." Martin Gardner, an editor of Scientific American, calls Asimov "one of the top science writers in the business simply because, like all good novelists, he knows how to dramatize...
...planets and clocking their return to earth to an accuracy of better than a millionth of a second. The object: to see if solar gravity slows the signals down by the amount forecast by Einstein. So far, general relativity has passed these and other tests without exception. Says Yale Physicist Feza Gursey: "Einstein's theories tend to become stronger with time...
...impossible to detect. Putting the theory into elegant mathematical form, the Dutch physicist Hendrik Lorentz added another idea: permeating the structure of all matter, the ether would also slow down clocks traveling through it?in fact, just enough so light's speed would always seem constant...
...light beam hits a metallic target and causes it to give off electrons. (This phenomenon makes possible a host of today's electronic gadgetry, ranging from electric-eye devices to TV picture tubes and solar panels for spacecraft.) In this paper Einstein borrowed from a theory by German Physicist Max Planck, who had solved a vexing problem about the radiation of heat and light from hot objects by proposing that this radiant energy is carried off or absorbed in tiny packets, or quanta. Planck himself was dissatisfied with the theory, believing it contrary to nature, but Einstein enthusiastically seized...