Milne model 1970-01-01
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N-ray 1970-01-01
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Nemesis (hypothetical star) 1970-01-01
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Nordström's theory of gravitation 1970-01-01
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Phlogiston theory 1970-01-01
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Sublunary sphere 1970-01-01
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Theory of impetus 1970-01-01
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Titius–Bode law 1970-01-01
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Toroidal ring model 1970-01-01
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Trepidation 1970-01-01
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Vector meson dominance 1970-01-01
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Vulcan (hypothetical planet) 1970-01-01
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Weiss magneton 1970-01-01
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Welteislehre 1970-01-01
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