The definition of a kilogram just changed worldwide
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Motherboard[^]:
The kilogram is the last unit of measurement to be untethered from an artificial object.
*Excluding the US, Liberia, and Burma
Yes, it's changed there also. They just don't care as much.
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Motherboard[^]:
The kilogram is the last unit of measurement to be untethered from an artificial object.
*Excluding the US, Liberia, and Burma
Yes, it's changed there also. They just don't care as much.
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The pound is actually defined as 0.45359237 kg. Most Imperial units are now defined in terms of metric.
That... makes no sense. Which I suppose makes complete sense in this case. :confused: :~ People and their units. /sigh.
TTFN - Kent
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Motherboard[^]:
The kilogram is the last unit of measurement to be untethered from an artificial object.
*Excluding the US, Liberia, and Burma
Yes, it's changed there also. They just don't care as much.
The author of the article wrote: Most of the people who will notice the difference between Le Grand K and the new kilo will be scientists who deal with hyper-precise measurements, such as pharmacologists who must dole out exact doses of medications This is obviously nonsense. Up to the new definition of the kg the mass was known to an accuracy of 50 microgram, that's only 0.05 millionths. Who cares if he/she gets an overdose of even one millionth He also writes "The kilogram is now equal to the weight of 1.4755214 x 1040 photons with frequencies matching a cesium atomic clock." That's not a very large number of photons, about 1500. There's a symbol missing
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Motherboard[^]:
The kilogram is the last unit of measurement to be untethered from an artificial object.
*Excluding the US, Liberia, and Burma
Yes, it's changed there also. They just don't care as much.
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The author of the article wrote: Most of the people who will notice the difference between Le Grand K and the new kilo will be scientists who deal with hyper-precise measurements, such as pharmacologists who must dole out exact doses of medications This is obviously nonsense. Up to the new definition of the kg the mass was known to an accuracy of 50 microgram, that's only 0.05 millionths. Who cares if he/she gets an overdose of even one millionth He also writes "The kilogram is now equal to the weight of 1.4755214 x 1040 photons with frequencies matching a cesium atomic clock." That's not a very large number of photons, about 1500. There's a symbol missing
Given that some phamaceuticals are effective in dosages measured in micrograms, I really don't think your summary works here. For example, LSD-25 can make you hallucinate with approx 60 microgram dosage.
"If you don't fail at least 90 percent of the time, you're not aiming high enough." Alan Kay.
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Given that some phamaceuticals are effective in dosages measured in micrograms, I really don't think your summary works here. For example, LSD-25 can make you hallucinate with approx 60 microgram dosage.
"If you don't fail at least 90 percent of the time, you're not aiming high enough." Alan Kay.
The article and my comment related to the accuracy of the measurement, not to the amount. Up to the change in definition the mass of the standard kilogram was known with an accuracy of about 50 µg (0.05ppm). The usual LSD dose is 50-100 µg, one doesn't need the above accuracy for the dosage PS As a chemistry student some one asked me in the student union bar if I could synthesise LSD. The answer was yes, but even in those days you were reported to the police if you ordered the starting materials