Posts Tagged ‘backward propogation’
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“To control speed, skiers turn and scrape the snow on the downhill side of the moguls they encounter,” researchers report. “In so doing, they push snow down the mountain and pile it onto the uphill side of the following mogul. As a consequence, each mogul loses material on its downhill side but gains new material on its uphill side.” The process causes the moguls to migrate uphill. (Courtesy: iStockphoto)
U. COLORADO (US)—Gravity always wins, one might think. Avalanches roar and skiers plunge inexorably downhill. But moguls—or bumps, as skiers know them—move uphill. Continue…
