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  • 11
    Electronic Resource
    Electronic Resource
    Experimenting with controlled gravity (1977)
    [s.l.] : Nature Publishing Group
    Nature 268 (1977), S. 397-398 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OUR everyday experience of gravity is so pronounced that it is easy to forget what an incredibly weak force it really is. Only our proximity to a mass as large as the Earth enables terrestrial gravitational forces to compete with other forces of nature. By contrast, in the laboratory, gravity is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/268397a0
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  • 12
    Electronic Resource
    Electronic Resource
    Do black holes really explode? (1974)
    [s.l.] : Nature Publishing Group
    Nature 250 (1974), S. 37-38 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nevertheless, during the collapse of a spherically symmetric object, the metric near the surface will be changing rapidly on a time scale of T ~ 10-5 (M/M®) s, so that on general grounds the production of massless particles with energy of order h/? is expected. Many of these particles will escape ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/250037a0
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  • 13
    Electronic Resource
    Electronic Resource
    Ball Lightning or Spots before the Eyes ? (1971)
    [s.l.] : Nature Publishing Group
    Nature 230 (1971), S. 576-577 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Argyle attempts to explain ball lightning in terms of positive after-images, which have certain properties in common with the former. There seem to be two overriding objections to this conjecture. First, it is hard to understand the unanimity of description in cases where there have been many ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/230576c0
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  • 14
    Electronic Resource
    Electronic Resource
    Hoyle-Narlikar Theory of Gravitation (1970)
    [s.l.] : Nature Publishing Group
    Nature 228 (1970), S. 270-271 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This note concerns the Bohr quantization of the gravitational theory of Hoyle and Narlikar2. This theory derives from a direct interparticle action S - SS |J G(A,B)dadb a〈b (1) summed once over all pairs of particles a,6, dad& are world line elements and O is a time-symmetric scalar ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/228270a0
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  • 15
    Electronic Resource
    Electronic Resource
    Quantum field theory in curved space–time (1976)
    [s.l.] : Nature Publishing Group
    Nature 263 (1976), S. 377-380 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Recent theoretical developments indicate that the presence of gravity (curved space–time) can give rise to important new quantum effects, such as cosmological particle production and black-hole evaporation. These processes hint at intriguing new relations between quantum theory, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/263377a0
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  • 16
    Electronic Resource
    Electronic Resource
    Cosmic heresy? (1978)
    [s.l.] : Nature Publishing Group
    Nature 273 (1978), S. 336-337 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE burning at the stake is now out of vogue, it will be interesting to see how the Establishment responds to a radical new model of the Universe proposed by George Ellis. For he does not merely tinker with the currently fashionable big-bang cosmic scenario, he goes the whole way and abandons the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/273336a0
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  • 17
    Electronic Resource
    Electronic Resource
    Electric Universe (1978)
    [s.l.] : Nature Publishing Group
    Nature 273 (1978), S. 268-269 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] GRAVITY is the force that controls the stars and galaxies. Although about forty powers of ten weaker than electricity, the cumulative effect of gravity in a massive body of astronomical size far outweighs electromagnetic forces, which tend to be self-neutralising. The reason for this is that all ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/273268b0
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  • 18
    Electronic Resource
    Electronic Resource
    Foundations of relativity (1979)
    [s.l.] : Nature Publishing Group
    Nature 278 (1979), S. 288-288 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] TEN years ago introductory books on general relativity were a rarity. Since then, advances in the subject and greater awareness among students that gravity is an intriguing, even bizarre, branch of physics, have stimu-lated a stream of works appealing to the bottom end of the market. An enor-mous ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/278288a0
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  • 19
    Electronic Resource
    Electronic Resource
    Gravitational radiation at last? (1979)
    [s.l.] : Nature Publishing Group
    Nature 277 (1979), S. 430-430 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SCIENTISTS have used astronomy as a proving ground for theories of gravity ever since Newton explained the sizes and shapes of the planetary orbits. In 1915 Einstein proposed a new theory of gravity-general relativity-involving bizarre concepts of geometrically distorted space-time, and in a short ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/277430a0
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  • 20
    Electronic Resource
    Electronic Resource
    Weak interactions in the big bang (1976)
    [s.l.] : Nature Publishing Group
    Nature 259 (1976), S. 157-157 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE apparent arbitrariness of the numerical values assumed by the various constants of physical theory has from time to time led to the conjecture that these quantities may not be fixed numbers at all, but vary from epoch to epoch as the Universe evolves. Such a suggestion was advanced, on the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/259157a0
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