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In our Library - where Books are free |
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Chapter 6 -
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are the safest; but the captains of most ships make for some port or safe anchorage to ride out the storm, and if they part with their anchor they hoist a signal of distress, and the nearest lifeboat station, on receiving the signal, man their lifeboat and launch. "Through the wild surf they cleave their
way, Now comes the question, What is the
wind? And we reply: Wind is air in motion, and to measure its
speed or velocity, an instrument has been invented called an anemometer,
which not only tells us its speed but its pressure. Seven miles
an hour is called a "gentle air," fourteen miles "
a light breeze," twenty-one "a good steady breeze,"
forty miles " a gale," sixty miles " a heavy storm,"
eighty to a hundred " a hurricane sweeping all before it." |
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© Peter Smith 2009