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34 lines
2.1 KiB
HTML
34 lines
2.1 KiB
HTML
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<title>please.undo.undo.it to foshan-1992.pw</title>
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<h2>The AEther</h2>
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<p>In early modern physics, the luminiferous aether (or ether) was believed to be an invisible space-filling substance or field that was a transmission medium for electromagnetic or gravitational forces.</p>
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<h2>Tait's Tabulature of Knots</h2>
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<p>Peter Guthrie Tait (1837-1901) was a Scottish mathematical physicist, whose investigations in knot theory contributed to the field of topology as a mathematical discipline. His tabulations of knots with ten crossings, which became known as the <em>Tait conjectures<em>, arose out of experiements he conducted with William Thomspon (Lord Kelvin) in 1867 at the University of Edinburgh.</p>
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<a id="knot" name="knot"><h2>Knots</h2>
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<p>A knot is an entanglement, an intentional complication in cordage.</p>
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<h2>Knot Theory</h2>
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<p>Knot theory is a field of mathematics that studies the topology of knots.</p>
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<a id="unknot" name="unknot"><h2>Unknot</h2></a>
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<p>The unknot, or <i>torus</i>, is the first type of mathematical knot listed in knot theory. Intuitively, the unknot is a closed loop of rope without a knot in it.</p>
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<img class="drawing" src="img/Unknot.jpg" /><br>
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</picture>
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<h2>Mathematical knots</h2>
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<p>Mathematical knots, or knots which are studied in the field of knot theory, are based on the embedding of a circle within three-dimensional space. They are different from the usual idea of a knot, that is, a string with free ends. Therefore, mathematical knots are (almost) always considered to be closed loops.</p>
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