Rare N.D. Ice Disk Found
North Dakota retired engineer George Loegering has found a rare spinning disk of ice in the Sheyenne River, a weather phenomenon experts say likely was caused by cold, dense air, and an eddy in the river. (Nov. 26)
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3. Judge-Jake commented 10 years ago
Maybe back in the ice age it was one of these that inspired the invention of the wheel?
+32 1. dopkop commented 10 years ago