Robert F. Kennedy, Jr., has expressed support for some fields of science but has also declared he’d like a “break” in ...

A piece of string can be tied into different knots ... When the strand is tied into the tightest, most complex, knot – the three-twist knot – it can bind two metal atoms simultaneously, one copper ...

If the string can be deformed without cutting it into a simple circle, with no twists or crossings, it is not a true knot rather, it is an unknot. Sometimes, two knots may appear different, but with ...