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Sharp to the Touch

Barbed wire was invented in Ohio in 1867, and immediately became a popular method for fencing domesticated animals in and keeping predatory animals away. Though it’s a reasonably affordable material and relatively easy to construct, barbed wire is nonetheless not quite as easy a ranching solution as simply setting up regular wire fencing and then waiting for a particularly cold night to naturally barb it with sharp pricks of ice.

reddit/Nvermind08

This photo appears to capture yet another example of rime ice, in which water droplets in slow-moving fog are suddenly frozen in place.