Researchers watch quantum knots untie

A quantum gas can be tied into knots using magnetic fields. Our researchers were the first to produce these knots as part of a collaboration between Aalto University and Amherst College, U.S., and they have now studied how ...

Molecular nanocarbons with mechanical bonds

Carbon materials with nano-scale periodicity such as graphene and carbon nanotubes, called "nanocarbons," are expected to become light, highly functional next-generation materials. There have been demands for precise synthesis ...

How to tie microscopic knots

Physicists at the University of Colorado Boulder have gone to creative lengths to earn their scouting merit badges for knot-tying.

Tying the knot: New DNA nanostructures

Knots are indispensable tools for such human activities as sailing, fishing and rock climbing, (not to mention, tying shoes). But tying a knot in a lacelike strand of DNA, measuring just billionths of a meter in length, requires ...

Typhoon Kong-rey Moving through northwestern Pacific

At 11 am EDT (1500 UTC) on Oct 1 , Kong-rey was located near 16.8 north and 134.4 east, about 488 miles north-northwest of Yap. It was moving to the northwest and had maximum sustained winds near 125 knots gusting to 150 ...

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Knot

A knot is a method of fastening or securing linear material such as rope by tying or interweaving. It may consist of a length of one or several segments of rope, string, webbing, twine, strap, or even chain interwoven such that the line can bind to itself or to some other object—the "load". Knots have been the subject of interest for their ancient origins, their common uses, and the area of mathematics known as knot theory.

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