a reference point from which all other measurements are made is called a(n) metre.
a reference point from which all other measurements are made is called a(n) metre.
a reference point from which all other measurements are made is called a(n)?
metre
when the modern si system was defined at the 10th general conference on weights and measures (cgpm) in 1954, the ephemeris second (1/86400 of a mean solar day) was made one of the system's base units. because the earth's rotation is slowly decelerating at an irregular rate and was thus unsuitable as a reference point for precise measurements, the si second was later redefined more precisely as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom. the international standard atomic clocks use caesium-133 measurements as their main benchmark.
metric time
reference point









































reference point or similar may refer to:









































section::::science and math.









































bullet::::- in geometry, a point used to define the location of another point









































bullet::::- reference range or reference interval, a range of values found in healthy persons









































bullet::::- standard state or reference state, used in chemistry to calculate properties under different conditions









































bullet::::- frame of reference, a system of geometric axes in relation to which measurements of size, position, or motion can be made









































section::::other.









































bullet::::- benchmark utility level in prospect theory









































bullet::::- "reference point", a 1990 acoustic alchemy album









































bullet::::- reference point (horse), a 1980s british racehorse
reference point