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A meter is equal to 39.37 inches. [©Shutterstock, 2010]

Science and Engineering » Weights and Measures

How is the length of a meter presently determined?

Find out how the length of a meter is presently determined.
The length of a meter is presently determined by the distance light travels in a given amount of time. Discover the precise method by which the length of a meter is presently determined.

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A measuring tape can help an individual determine the area of a space. [©Shutterstock, 2010]

Science and Engineering » Weights and Measures

What are the equivalent measurements for area?

Find out what the equivalent measurements for area are.

Architects use bench marks to denote elevation. [©Shutterstock, 2010]

Science and Engineering » Weights and Measures

What is a bench mark?

Learn what a bench mark is and how it helps surveyors.

A barometer measures atmospheric pressure. [©Shutterstock, 2010]

Science and Engineering » Weights and Measures

What is the weight of one cubic foot of dry air at one atmosphere of barometric pressure?

See the weight of one cubic foot of dry air at one atmosphere of barometric pressure.

An example of a transmission tower. [©Shutterstock, 2010]

Science and Engineering » Weights and Measures

What is the United States Time Standard Signal?

Find out what the United States Time Standard signal is.

[©Shutterstock, 2010]

Science and Engineering » Weights and Measures

How did the measure the yard originate?

Find out how the measure the yard originated.

There are some years when a leap year does not exist. [©Jupiter Images, 2010]

Science and Engineering » Weights and Measures

When does leap year occur?

Every few years, a day is added to the month of February...

IIII has been favored over IV on clocks as a matter of aesthetics and tradition. [©Jupiter Images, 2010]

Science and Engineering » Weights and Measures

Why do clocks and watches with the Roman numerals on their faces use IIII for the number 4, rather than IV?

Find out why clocks and watches with the Roman numerals on their faces use IIII for the number 4, rather than IV.

Earthquake damage is measured in magnitudes. [©Jupiter Images, 2010]

Science and Engineering » Weights and Measures

What is the Richter Scale

Scientists use the Richter scale to determine an earthquake's magnitude.

Daylight Saving Time was enacted to provide more light in the evening hours. [©Jupiter Images, 2010]

Science and Engineering » Weights and Measures

When is Daylight Saving Time observed in the United States?

Learn when Daylight Saving Time is observed in the United States.

A short ton equals 2,000 pounds. [©Jupiter Images, 2010]

Science and Engineering » Weights and Measures

What is the difference between a short ton, a long ton and a metric ton?

Learn the difference between a short ton, a long ton and a metric ton.

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