Pettersson sentence example

pettersson
  • Nilson and Pettersson's observations on beryllium and germanium have shown that the atomic heats of these metals increase with rise of temperature, finally becoming constant with a value 5.6.
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  • Working out the calculations, Pettersson finds that the favourable constellation occurred and will occur in 3500 B.C., 1900 B.C., 250 B.C., 1433 A.D., 3300 A.D., and so on.
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  • Pettersson's papers on tide-generating force are published in Publications de Circonstance, Conseil Internat.
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  • Pettersson in 1894, two portions of sea-water are collected in glass tubes which have been exhausted of air, coated internally with mercuric chloride to prevent the putrefaction of any organisms, and sealed up beforehand.
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  • The last elaboration of the insulated slip water-bottle by Ekman, Nansen and Pettersson has produced an instrument of great perfection, in which the insulation is effected by layers of water between a series of concentric ebonite cylinders, all of which are closed both above and below when the apparatus encloses a sample, and each of which in turn must be warmed considerably before there is any rise of temperature in the chamber within.
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  • Pettersson's view that ice-melting dominates the 'whole circulation of the oceans and regulates in particular the currents of the seas round northern Europe must, however, be looked on as carrying the explanation too far.
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  • It is a malleable metal, of specific gravity 1.64 (Nilson and Pettersson) and a specific heat of 0.4079.
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  • Its vapour density has been determined by Nilson and Pettersson, and corresponds to the molecular formula BeC12.
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