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  • Articles  (7)
  • Nature Publishing Group  (7)
  • 1935-1939  (7)
  • Biology  (7)
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  • Articles  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 138 (1936), S. 1011-1011 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THEORETICAL investigations of the interaction of protons and neutrons have been given by Wigner, Heisenberg and Major ana. A very valuable check on their conclusions is provided by the study of the scattering cross-section of the hydrogen nucleus for neutrons of various energies. Cross-sections ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 135 (1935), S. 905-905 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] KLEMPEKER1 has recently shown that postulation of the existence of a radioactive isotope, 19K40, with a large nuclear spin, affords the most likely explanation of the radioactivity of potassium. He appears, however, to have over-estimated the value of ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 509-510 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Experiments hitherto performed on the scattering cross-sections of various substances for D—D neutrons have led to fundamentally different results. Most observers have found that the cross-section σ increases regularly with the atomic number, and some have deduced from their results the ...
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 138 (1936), S. 367-368 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOST neutron workers hitherto have used Ra-Be, Ra-B or Ra-F as sources; these yield neutrons with continuous ranges of energies extending up to several m.e.v. The D—D nuclear reaction is considered to yield a homogeneous group of neutrons of about 2 m.e.v. energy. It is of interest, therefore, ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 138 (1936), S. 124-124 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE remarkable transparency of alkali metal films reported by R. W. Wood1 is of considerable interest, on one hand in relation to the theory of electrons in metals and on the other in relation to spectroscopic technique, for these films are unique as ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 582-582 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR J. J. THOMSON1 has suggested that a photon is a finite, harmonic train of circular lines of electric force originating when an electron in a radiating atom falls from one energy-level to another. Such circular lines of force would move at right angles to their planes, and ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 139 (1937), S. 961-962 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I HAVE read with interest Dr. Wayland's letter on the subject of a natural bridge over the Nile some eleven miles below Nimule. Unfortunately, I had not seen his note in the Uganda Journal when I wrote my review of Dr. Ludwig's book or I should have realized that “A natural bridge has grown at ...
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