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Facsimile of a 1682 letter from Newton to William Briggs, commenting on Briggs' A New Theory of Vision. Newton argued that light is composed of particles or corpuscles, which were refracted by accelerating into a denser medium. He verged on soundlike waves to explain the repeated pattern of reflection and transmission by thin films (Opticks Bk ...
Today, it is widely believed that hearing follows the rules of the frequency theory, including volley theory, at frequencies below 1000 Hz and place theory at frequencies above 5000 Hz. For sounds with frequencies between 1000 and 5000 Hz, both theories come into play so the brain can utilize the basilar membrane location and the rate of the ...
In mathematics, specifically in differential topology, Morse theory enables one to analyze the topology of a manifold by studying differentiable functions on that manifold. According to the basic insights of Marston Morse , a typical differentiable function on a manifold will reflect the topology quite directly.
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For a period of time encompassing Newton's working life, the discipline of analysis was a subject of controversy in the mathematical community. Although analytic techniques provided solutions to long-standing problems, including problems of quadrature and the finding of tangents, the proofs of these solutions were not known to be reducible to the synthetic rules of Euclidean geometry.
The theory contained in that edition was founded on the experiments of others, but he soon saw that a theory so new, and leading to results so different from the ordinary theory, should be founded on new experiments more direct than the former, and he was employed in the performance of these from 1780 to 1783.
Sphera volgare, featuring the Sun, the Moon, the winds and the stars as living. Woodcut illustration from an edition of De sphaera mundi, Venice, 1537.. Hylozoism is the philosophical doctrine according to which all matter is alive or animated, [clarification needed] [1] either in itself or as participating in the action of a superior principle, usually the world-soul (anima mundi). [2]
The song’s titular film soon after became a hit as well, as White Christmas was the most successful movie in 1954.. This was the #1 box office hit of 1954, with rentals of $12 million, beating ...