Coat of arms of the Counts of FlandersDouble digging with spade and fork loosens the soil, to increase drainage and aeration."Me Worry?"Imperial Seal of JapanThe original Wikisource logoFlag of BelgiumCloverOmne Datum OptimumDoughnut-mugCompound eye of the Antarctic krillRack and pinion animationFoucault's pendulum does not rotate. It swings back and forth, as the earth rotates around it