- published: 15 Jul 2012
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A unit of measurement is a definite magnitude of a physical quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same physical quantity. Any other value of the physical quantity can be expressed as a simple multiple of the unit of measurement.
For example, length is a physical quantity. The metre is a unit of length that represents a definite predetermined length. When we say 10 metres (or 10 m), we actually mean 10 times the definite predetermined length called "metre".
The definition, agreement, and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. Different systems of units used to be very common. Now there is a global standard, the International System of Units (SI), the modern form of the metric system.
In trade, weights and measures is often a subject of governmental regulation, to ensure fairness and transparency. The International Bureau of Weights and Measures (BIPM) is tasked with ensuring worldwide uniformity of measurements and their traceability to the International System of Units (SI).
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You've made your decision
Now get up and leave
The familiar sting of the woodcutter's swing to the tree
I'll fall in the forest
To elbows and knees
And it won't make a sound
Since there's no-one around here to see
I was prepared to love you
And never expect anything of you
If the spirit has left you baby
Don't lie to yourself
Put them old records on
And admit that it's gone somewhere else
Just because we're beasts of blame by nature
Doesn't mean that you should carry it again
It's a question of needs and not rosary beads in the end
I was prepared to love you
And never expect anything of you
There's no patron saint of sudden restraint
Baby there ain't no sword in a lake
Just a funeral wake
And in comes the black night
Calling your name since you were born
I couldn't hear it
I was empty as a drum
I was prepared to love you
And never expect anything of you
And there's no patron saint of sudden restraint
Baby there ain't no sword in a lake
There ain't no sword in a lake
There ain't no sword in a lake