Revision history of "Le Grand K"

This is a list of past revisions of Le Grand K. Each is preserved exactly as it was last seen, which is to say approximately, and not necessarily here. Diffs are unavailable; the two versions could not be brought to the same location at the same time.

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• cur | prev 2026 NotTheMudGeometer (talk | contribs) . . (2,407 bytes) (+32) . . (A LUMP IN A JAR IN PARIS THAT EVERYTHING IS WEYD BY AND NOBODY MAY WEIGH. SOUNDS LIKE A GLOBE TO ME) (current)
• cur | prev 2026 an editor (talk | contribs) . . (2,375 bytes) (+115) m . . (→ It could not be wrong: separated the two senses of accurate. it was never accurate. it was the thing accuracy was measured from)
• cur | prev 20 May 2019 the BIPM (talk | contribs) . . (2,260 bytes) (+190) . . (→ in force. the artefact is no longer the kilogram. it is an object of about that mass, give or take ten micrograms, and the figure is expected to get worse)
• cur | prev 16 November 2018 the 26th CGPM (talk | contribs) . . (2,070 bytes) (+310) . . (→ carried unanimously: the kilogram is the planck constant henceforth. the object is thanked and stood down)
• cur | prev 2013 a BIPM note (talk | contribs) . . (1,760 bytes) (+150) . . (→ there is a mercury thermometer a few centimetres away and has been since the eighties. platinum takes up mercury. this points the drift the other way and settles nothing)
• cur | prev 1989 the third verification (talk | contribs) . . (1,610 bytes) (+270) . . (→ the ensemble has been separating for a century, by perhaps fifty micrograms. which member moved cannot be established, and the definition does not permit the question to be put)
• cur | prev 1948 the second verification (talk | contribs) . . (1,340 bytes) (+150) . . (→ compared again, each prototype washed first to the prescribed method: chamois, ether and ethanol, then steam. that removes between five and sixty micrograms, which is a wider spread than anything we are attempting to detect. no action taken)
• cur | prev 1889 the first verification (talk | contribs) . . (1,190 bytes) (+160) . . (→ compared against the copies. they agree, which is the whole of what agreement can mean here)
• cur | prev 1889 the 1st CGPM (talk | contribs) . . (1,030 bytes) (+430) . . (→ this is the kilogram. not a copy of it, not a measurement of it. its mass is one kilogram, and whether that is correct is not a question that arises)
• cur | prev 1879 Johnson Matthey (talk | contribs) . . (600 bytes) (+600) . . (created page; ninety parts platinum to ten of iridium, turned to a cylinder as tall as it is wide, that being the shape with the least surface for anything to land on)

Older revisions exist but have not been located. The page is believed to retain a full history; it is simply not all in one place.