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Latest Knot theory Stories

2011-11-10 12:58:02

In the 19th century, Lord Kelvin made the inspired guess that elements are knots in the "ether". Hydrogen would be one kind of knot, oxygen a different kind of knot---and so forth throughout the periodic table of elements. This idea led Peter Guthrie Tait to prepare meticulous and quite beautiful tables of knots, in an effort to elucidate when two knots are truly different. From the point of view of physics, Kelvin and Tait were on the wrong track: the atomic viewpoint soon made the theory of...

2011-11-07 16:23:05

A research team headed by Professor David Leigh of the University of Edinburgh (UK) and Academy Professor Kari Rissanen of the University of Jyväskylä (Finland) have made the most complex molecular knot to date, as reported in Nature Chemistry (DOI:10.1038/NCHEM.1193, published online Nov. 6 2011). Knots can be found in DNA, proteins and even in the molecules that make up man-made plastics, where they often play an important role in the substance's properties...

2010-03-18 13:48:00

NEW YORK, March 18 /PRNewswire/ -- Within the general question of the chemical origin of life lies the question of handedness, or chirality (a term derived from the Greek word for hand). Critically important molecules that make up life -- including DNA, RNA, polysaccharides and proteins -- are chiral. This means there are mirror image forms that are not identical, much as one's left and right hands are different and are mirror reflections. (Logo:...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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