Kilogram sliming down...
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
Steve Mayfield wrote:
Official prototype of kilogram mysteriously losing its weight
:mad: no fair... I go to all that trouble to loose weight, and someone put the kilogram on a diet too. :mad: or maybe I shouldn't have tested that ray gun there last year.... hmmmmm....
_________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
"We don't really have a good hypothesis for it,'' Davis said in a phone interview Wednesday. I do - it was made on a Friday afternoon at about 10 to 5 and the craftsman in question thought "Bugger it, I'm off down the pub".
Me: Can you see the "up" arrow? User:Errr...ummm....no. Me: Can you see an arrow that points upwards? User: Oh yes, I see it now! -Excerpt from a support call taken by me, 08/31/2007
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I bet you someone snuck in one night, ran around with it like an idiot ("I've got the kilogram! I've got the kilogram! Waaa!) dropped it, picked it up, saw the scratches, used some 1000 grit sandpaper and some brasso to clean it up, and, after wiping off the fingerprints, snuck it back in its case. 50 micrograms easy.
cheers, Chris Maunder
CodeProject.com : C++ MVP
50µg? Simple. The cleaning woman, dusting it off.
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
My first real C# project | Linkify!|FoldWithUs! | sighist -
Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
Steve Mayfield wrote:
Official prototype of kilogram mysteriously losing its weight
I blame global warming. The air is warmer and so things in it aren't as heavy. (Now that's new age science for you!) Marc
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So - I can stick to the kilogram diet and lose weight this way.
Deja View - the feeling that you've seen this post before.
Actually, no. (If the prototype loses weight, you get get more kilos)
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
My first real C# project | Linkify!|FoldWithUs! | sighist -
Steve Mayfield wrote:
Official prototype of kilogram mysteriously losing its weight
I blame global warming. The air is warmer and so things in it aren't as heavy. (Now that's new age science for you!) Marc
along those lines...Summer has longer days because heat expands things and Winter has shorter days because cold compresses things... ;) Steve
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along those lines...Summer has longer days because heat expands things and Winter has shorter days because cold compresses things... ;) Steve
Steve Mayfield wrote:
Summer has longer days because heat expands things and Winter has shorter days because cold compresses things...
Makes perfect sense! I can't wait to run that one by on my ex-wife! Marc
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Steve Mayfield wrote:
Official prototype of kilogram mysteriously losing its weight
I blame global warming. The air is warmer and so things in it aren't as heavy. (Now that's new age science for you!) Marc
Marc Clifton wrote:
The air is warmer and so things in it aren't as heavy.
You know, it's as heavy as before, only larger in volume, i.e., less dense. :doh:
-- Time you enjoy wasting is not wasted time - Bertrand Russel
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
They say 50 Micrograms is the weight of a fingerprint. I suggest they give the kilogram a good wash as well as their measuring equipment.
_______________________________________________________________________ http://www.notreadytogiveup.com/Doubts.aspx[^] "you can't forget something you never knew..." M. Du Toit
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
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along those lines...Summer has longer days because heat expands things and Winter has shorter days because cold compresses things... ;) Steve
Brilliant, can't wait to use that one!!!
------------------------------------ Happy Primes Lead to Happy Memories. Don't Google FGI
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
or cause wary waistline-watchers to re-examine their weights: 50 micrograms is roughly equivalent to the weight of a fingerprint. New diet patent - eat sandwich with gloves on. Guaranteed minimum 500 microgram weight loss per day per sandwich (400 if you eat with pinkies raised.)
Gary
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
You've got it all wrong. It's not about weight loss, it's about slime! Sounds vaguely (perhaps blatantly) political.
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or cause wary waistline-watchers to re-examine their weights: 50 micrograms is roughly equivalent to the weight of a fingerprint. New diet patent - eat sandwich with gloves on. Guaranteed minimum 500 microgram weight loss per day per sandwich (400 if you eat with pinkies raised.)
Gary
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Official prototype of kilogram mysteriously losing its weight [^] :omg: (50 micrograms compared with the average of dozens of copies...so far) Steve
Basing the standard kilogram on a physical object seems unreliable to me. Why not base it on something objective and timeless, like the mass of a specific number of atoms of a specific isotope of an element?
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Basing the standard kilogram on a physical object seems unreliable to me. Why not base it on something objective and timeless, like the mass of a specific number of atoms of a specific isotope of an element?
probably the difficulty of counting the number of atoms precisely enough in a usefully large sample. 1g of atomic Hydrogen contains ~6*10^23 atoms. All the other periodic redefines have been done when problems begin to surface with the old definition, until it breaks there's no point in spending money to fix it afterall. This issue probably will result in a new definition at some point in the medium near future.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.
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probably the difficulty of counting the number of atoms precisely enough in a usefully large sample. 1g of atomic Hydrogen contains ~6*10^23 atoms. All the other periodic redefines have been done when problems begin to surface with the old definition, until it breaks there's no point in spending money to fix it afterall. This issue probably will result in a new definition at some point in the medium near future.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.
The difficulty in counting atoms is probably not that great. As you mentioned, 6 * 10^23 (a "mole") is commonly used in the specification of a gas' mass. In any case it's highly unlikely that uncertainties in atom count would cause as large a variation as has been observed in the official kilogram. Defining mass units in terms of atoms (which don't change mass) seems more stable to me.
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The difficulty in counting atoms is probably not that great. As you mentioned, 6 * 10^23 (a "mole") is commonly used in the specification of a gas' mass. In any case it's highly unlikely that uncertainties in atom count would cause as large a variation as has been observed in the official kilogram. Defining mass units in terms of atoms (which don't change mass) seems more stable to me.