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A million millilitres or cubic centimetres (one cubic metre) of water has a mass of a million grams or one tonne. Weight: A million 80-milligram (1.2 gr) honey bees would weigh the same as an 80 kg (180 lb) person. Landscape: A pyramidal hill 600 feet (180 m) wide at the base and 100 feet (30 m) high would weigh about a million short tons.
A similar system is used in natural gas sales in the United States: m (or M) for thousands and mm (or MM) for millions of British thermal units or therms, and in the oil industry, [30] where MMbbl is the symbol for "millions of barrels". This usage of the capital letter M for "thousand" is from Roman numerals, in which M means 1000. [31]
The millimetre (SI symbol: mm) is a unit of length in the metric system equal to 10 −3 metres ( 1 / 1 000 m = 0.001 m). To help compare different orders of magnitude, this section lists lengths between 10 −3 m and 10 −2 m (1 mm and 1 cm). 1.0 mm – 1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly)
The length of the equator is close to 40 000 000 m (more precisely 40 075 014.2 m). [22] In fact, the dimensions of our planet were used by the French Academy in the original definition of the metre. [23] A dining tabletop is typically about 0.75 metres high. [24] A very tall human is about 2 metres tall. [25]
Mega is a unit prefix in metric systems of units denoting a factor of one million (10 6 or 1 000 000). It has the unit symbol M. It was confirmed for use in the International System of Units (SI) in 1960. Mega comes from Ancient Greek: μέγας, romanized: mégas, lit. 'great'. [1]
Unit prefix M (mega), meaning one million times, and m (milli) meaning one-thousandth. [4] [5] m is the standard abbreviation for metre (or meter) in the International System of Units (SI). [4] However, m is also used as an abbreviation for mile. [5] M is used as the unit abbreviation for molarity. [4] With money amounts, m or M is ambiguous.
Different lengths as in respect to the electromagnetic spectrum, measured by the metre and its derived scales.The microwave is between 1 meter to 1 millimeter.. The millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a metre, which is the SI base unit of length.
The angstrom (symbol Å) is a unit of distance used in chemistry and atomic physics equal to 100 pm. The micron (μ) is a unit of distance equal to one micrometre (1 μm). The basic module (M) is a unit of distance equal to one hundred millimetres (100 mm). The myriametre (mym) is a unit of distance equal to ten kilometres (10 km).