1st gen compression
#27
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Originally posted by Rx7carl
Basis of meter had something to do with the circumference of the earth divided by some really big number. Actually thats how they got a kilometer IIRC. Then divide down to get meters, etc.
Basis of meter had something to do with the circumference of the earth divided by some really big number. Actually thats how they got a kilometer IIRC. Then divide down to get meters, etc.
The birth of the metric system occurred in France in April 1790, when Charles Maurice de Tallyrand, then Bishop of Autun, placed before the National Assembly of France a plan based on a unit of length equal to the length of a pendulum that would make one full swing per second.
However, there were many recognized practical difficulties, including variations with temperature and values of gravitational force at different places on the surface of the earth. After scientific consideration a new unit of length equal to one ten-millionth of the length of the arc from the equator to the North Pole was recommended. In May 1793 this unit was given the name "Metre," derived from the Greek word metron, meaning "a measure." From the same word came the name of the new system. The new Republic of France adopted the recommendations of the French Academy of Sciences in 1795.
#29
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Originally posted by Rx7carl
advanced stage of oldness.
advanced stage of oldness.
And my apologies for continuing the off-topicness of this thread.
#30
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Originally posted by kleinke
The SI unit of pressure is Pascals, not kg/cm2. So the Japanese are not using the correct system of units either?
7.8 kg/cm2 = 764.92 KPa = 110.94 lb/in2 = 7.65 Bar = 7.55 standard atmospheres
Unless the compression tester has the units labeled on it, I would be hesitant to assume what they are. Especially since Bar is a widely used metric unit.
Doesn't Canada use Imperial units, not the US?
-(stupid)
The SI unit of pressure is Pascals, not kg/cm2. So the Japanese are not using the correct system of units either?
7.8 kg/cm2 = 764.92 KPa = 110.94 lb/in2 = 7.65 Bar = 7.55 standard atmospheres
Unless the compression tester has the units labeled on it, I would be hesitant to assume what they are. Especially since Bar is a widely used metric unit.
Doesn't Canada use Imperial units, not the US?
-(stupid)
#31
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Originally posted by abeomid
Man some of you guys are really ignorant.
Those numbers are in metric units.
Cheers
Man some of you guys are really ignorant.
Those numbers are in metric units.
Cheers
I answered from my knowledge base and accordingly gave him a disclaimer
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