As 10 dm. A cubic dm (deci-meter) cube happens to be able to contain exactly 1 liter of water at 20 degrees C. with cats
The metre was originally intended to be one ten-millionth of the distance from the equator to the north pole running through Paris (making the distance from the equator to the north pole 10,000 km and the circumference of the earth 40,000 km [round that great circle]). It has since been redefined
In the eighteenth century, there were two favoured approaches to the definition of the meter. One approach suggested that the metre be defined as the length of a 'seconds pendulum' (pendulum with a half-period of one second). Another suggestion was defining the metre as one ten-millionth of the length of the Earth's meridian along a quadrant (the distance from the Equator to the North Pole).In 1791, the French Academy of Sciences selected the latter definition (the one related to Earth's meridian) over the former (the one with the pendulum) because the force of gravity varies slightly over the surface of the Earth's surface, which affects the period of a pendulum.
Excluding leap years, 1791/365 = 4.91 years
no it is divisible by 3, 5, 11, 19 etc
by the demension of the planet earth
In 1791, the standard meter was defined as 1/10,000,000 of the distance from the equator to the North Pole along a meridian passing through Paris. This definition was based on the measurements made by French astronomers Delambre and Méchain during the survey of the French meridian.
As 10 dm. A cubic dm (deci-meter) cube happens to be able to contain exactly 1 liter of water at 20 degrees C. with cats
The meter was invented in 1791. As being 1/10,000,000 of the distance from the North Pole to the equator.
The metre was originally intended to be one ten-millionth of the distance from the equator to the north pole running through Paris (making the distance from the equator to the north pole 10,000 km and the circumference of the earth 40,000 km [round that great circle]). It has since been redefined
It was established in 1791.
France calculated the meter. The meter was first defined as one ten-millionth of the distance from the equator to the North Pole, through Paris. This definition was adopted by the French Academy of Sciences in 1791.
In the eighteenth century, there were two favoured approaches to the definition of the meter. One approach suggested that the metre be defined as the length of a 'seconds pendulum' (pendulum with a half-period of one second). Another suggestion was defining the metre as one ten-millionth of the length of the Earth's meridian along a quadrant (the distance from the Equator to the North Pole).In 1791, the French Academy of Sciences selected the latter definition (the one related to Earth's meridian) over the former (the one with the pendulum) because the force of gravity varies slightly over the surface of the Earth's surface, which affects the period of a pendulum.
1791 M=1000 D=500 C=100 X=10 I=1
French scientists initially used the Earth itself as the basis for determining the length of a meter. In 1791, they defined the meter as one ten-millionth of the distance from the equator to the North Pole along a meridian passing through Paris. This definition tied the meter to the Earth's dimensions. To physically represent this length, they created a platinum prototype meter bar in 1799, known as the "mètre des Archives", which became the standard for the meter. This definition was later replaced in 1889 by a new standard: a meter was defined as the distance between two marks on a platinum-iridium bar kept at the International Bureau of Weights and Measures (BIPM) in Sèvres, France. Eventually, the definition evolved further, tying the meter to the speed of light in 1983, making it a fundamental constant of nature.
1791 was in the 18th Century.
December 15, 1791