Tag Archives: Sea Level

Why does the Panama Canal have locks?

The Panama Canal locks are a series of water “steps” which lift ships 85 feet above sea level, and then lower them back down to the ocean at the other end of the canal. The Panama Canal is a kind of water “stairway” that crosses the isthmus of Panama and connects the Atlantic and Pacific …

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How is the Height of the Mountain Measured?

Most mountains are measure with altimeters, for more accurate readings, surveyors use transits and mathematics to measure elevation. When we read of high mountains in books, we may wonder, how the height of a mountain is actually measured.  Most of our figures for mountain heights were obtained with an altimeter. This is a kind of barometer …

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Why is it cooler in the mountains?

Probably  you have noticed that it is usually much cooler in the mountains than in nearby lowland places. This is because the higher  up you go, the less air there is above you.  The air becomes colder because it cannot absorb as much heat as it is able to hold at sea level. Perhaps the …

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How is the height of a mountain measured?

When we read of high mountains in books, we may wonder how the height of a mountain is actually measured.  Most of our figures for mountain heights were obtained with an altimeter. This is a kind of barometer that uses air pressure to measure altitude, or height above sea level.  Altimeters give quick and easy …

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How did death valley get its name?

Death valley was named in 1849 but the survivors of a party of prospectors, many of whom died of heat and thirst while looking for gold in the valley.  The hottest, driest and lowest place in the United States is Death Valley.  Death Valley is a desert basin that lies mostly in Southern California. Death …

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