Quick, study your Christmas cards for snowflakes lest they be falsely represented. There are six sides to a snowflake; any more or less is heresy. Comments to this piece about Professor Thomas Koop, specialist in ice crystal formation at the University of Bielefled, Germany, who is upset about the corruption of snowflakes, include pretty flaky arguments, crystallising opinion, sixism in science and, my favourite so far, hell hath no flurry like a scientist scorned. Internet journalism at its best!