a construction based on the moment curve can be used to prove a lemma of gale, according to which, for any positive integers "k" and "d", it is possible to place 2"k" + "d" points on a "d"-dimensional sphere in such a way that every open hemisphere contains at least "k" points. this lemma, in turn, can be used to calculate the chromatic number of the kneser graphs, a problem first solved in a different way by lászló lovász.