The real length of a normal pendulum is almost unattainable, so limited is our knowledge of the force of gravity on land and at sea, A more certain basis for a natural unit has been found in the ...

The furlong wasn’t always just an arcane unit of measure that horseracing fans gabbed about; it once had significance as the length of the furrow a team of oxen could plow in a day.

For emergency room patients, a Maryland hospital's new observation unit has lowered length of stay and reduced admission of patients to inpatient care.

Japan’s traditional units of measurement for length and weight include the monme (3.75 grams), which has become an internationally recognized standard for weighing pearls.

There are things in the world that are too small to perceive directly, but that doesn't mean we can't measure them. Here are 11 teeny units of measurement used to describe tiny things.

What is speed? Definition. Units of speed. Calculate one of distance, speed or time given the other two variables.

Learn about converting metric units for area and volume with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

In a competing theory called loop quantum gravity, on the other hand, space and time are broken into discrete blocks, which gives rise to a smallest possible length (expressed in units of the ...

As revolution raged in the 1790s, French scientists replaced a chaotic system of weights and measures with an unified way to calibrate and calculate.

There are things in the world that are too small to perceive directly, but that doesn’t mean we can’t measure them. Here are 11 teeny units of measurement used to describe tiny things.