Talk:Kilogram

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Good article Kilogram has been listed as one of the Natural sciences good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.
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External links modified[edit]

Hello fellow Wikipedians,

I have just added archive links to one external link on Kilogram. Please take a moment to review my edit. If necessary, add {{cbignore}} after the link to keep me from modifying it. Alternatively, you can add {{nobots|deny=InternetArchiveBot}} to keep me off the page altogether. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true to let others know.

YesY Archived sources have been checked to be working

Cheers. —cyberbot IITalk to my owner:Online 12:32, 26 August 2015 (UTC)

The Wayback link is correct, but I found the renamed page in the original source and used that link instead. 71.41.210.146 (talk) 16:41, 14 September 2015 (UTC)

volkesrazn[edit]

volkesrn 1234567890 <r dnu ₭¥€ef>Empty citation (help) </ref>

The IPK was also used in the extraordinary calibrations of 2014.[edit]

Lots of stuff in the April 2015 Metrologia. In order to determine the most accurate possible value for h, a special calibration campaign was conducted over 2014 to minimize uncertainty between the IPK and the kilograms used by various watt balance and Avogdaro experiments. This did not use a large number of national prototypes, but is checking the BIPM working prototypes and the prototypes used by the measurement experiments.

Stock, Michael; Barat, Pauline; Davis, Richard S.; Picard, Alain; Milton, Martin J.T. (24 March 2015). "Calibration campaign against the international prototype of the kilogram in anticipation of the redefinition of the kilogram part I: comparison of the international prototype with its official copies". Metrologia 52 (2): 310–316. doi:10.1088/0026-1394/52/2/310.  discovered two interesting things about the various kilogram copies since the third IPK:

  1. Little-used prototypes, such as the official copies, did not show a continuation of the drift observed during the third periodic verification.
  2. The BIPM working kilogram was found to be 35 µg lighter than the IPK, because the working prototypes had lost mass due to wear since the third periodic verification.

I don't have the gumption to write the necessary text ATM, so I'm leaving this here in case it inspires someone. 71.41.210.146 (talk) 19:13, 13 September 2015 (UTC)

Split proposal[edit]

International prototype kilogram can be a separated article. -- ChongDae (talk) 01:41, 17 November 2015 (UTC)