During the fall equinox, the sun becomes parallel with the moon or something (you'll have to check that out for yourself because I don't exactly remember). You can stand a broom up and it will not fall. It can only happen during a few weeks in the fall of the year. It is rumored that an egg will also stand on its' end, but Allen and I couldn't get that to happen. But, we did manage the broom. The eggs were quite a mess.