Archive: 11/10/2011

Two rhino species bite the dust: Red List

Several species of rhino have been poached into extinction or to the point of no return, according to an update of the Red List of Threatened Species, the gold standard for animal and plant conservation.

Nov 10, 2011 5 / 5 (1) 2

A revolution in knot theory

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 ...

Nov 10, 2011 4.8 / 5 (36) 21 | with audio podcast