Saturday, January 9, 2010

Pic Today 1/9/10


The snow is really loud today ! ! !

Ever notice how snow squeaks when you walk on it, especially when it gets REAL COLD
(like today)?

Here's why . . .

When the air and snow are only slightly below freezing, pressure from walking compresses and partially melts the snow crystals underfoot. Lubricated by a thin film of water, the snow can flow and little sound is made.

But when it gets colder and colder, foot pressure is not sufficient to melt the snow. Instead, when you step down, the individual ice crystals crash into each other, rubbing and crashing, with that familiar cold-weather creaking sound.

In fact . . .

THE COLDER THE SNOW THE LOUDER THE CRUNCH.

Listen to your next walk in the snow. And happy crunching!

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