wxwax
Mar-23-2007, 02:48 PM
Amazing but true: this thing is natural, not man-made.
http://media.npr.org/programs/atc/features/2007/mar/doughnut500.jpg
I'm showing the photo, because the person who took it was on the government payroll at the time, which means the image is in the public domain. His name is Mike Stanford.
He says: "It's formed by a clump of snow falling off of a cliff or a tree into the snow pack. And if the conditions and temperature are just right, as gravity takes over, it pulls the snow down, and it rolls back on itself," Stanford says. "Usually the center collapses and it creates what we call a pinwheel."
Pretty darn cool.
http://media.npr.org/programs/atc/features/2007/mar/doughnut500.jpg
I'm showing the photo, because the person who took it was on the government payroll at the time, which means the image is in the public domain. His name is Mike Stanford.
He says: "It's formed by a clump of snow falling off of a cliff or a tree into the snow pack. And if the conditions and temperature are just right, as gravity takes over, it pulls the snow down, and it rolls back on itself," Stanford says. "Usually the center collapses and it creates what we call a pinwheel."
Pretty darn cool.