For centuries Hawaiians of all social classes participated in he'e nalu, or wave sliding, a sport with social and ritual importance. Modern surfers use boards made from synthetic materials that echo earlier wooden shapes.
STANDING IN A CORNFIELD IN INDIANA, I once saw a fat roll cloud (like #4 below) float directly over my head. It's a 12-year-old memory that remains fresh. There was a moment mild panic just as the cloud reached me — I thought.