[ExI] Sea level rise

Stathis Papaioannou stathisp at gmail.com
Sun Aug 9 23:53:08 UTC 2009

2009/8/10 BillK <pharos at gmail.com>:
> On 8/9/09, Stathis Papaioannou wrote:
>> The following pages confirm that the density of pure water does not
>>  vary by more than one part per million in the range 3.6 to 4.4 degrees
>>  Celsius:
>>  http://faculty.uccb.ns.ca/chowley/chem201/dh20vstemp.htm
>>  http://antoine.frostburg.edu/chem/senese/101/measurement/faq/water-density.shtml
>>  However, they do differ from the calculator I originally quoted in
>>  that they give a density of less than 1000.000 kg/m^3 for pure water.
>>  Perhaps the first calculator is (mistakenly) referring to specific
>>  gravity rather than density.
> I don't think that's the reason.
> This site shows both tables on the same page without explanation.
> Maybe the slight difference is between pure water and tap water.
> <http://www.simetric.co.uk/si_water.htm>

My understanding is that it was originally intended that 1 litre of
pure water at 4 degrees Celsius weigh exactly 1kg, but it turned out
that the Pt/Ir kilogram standard in Paris actually weighs more than


Stathis Papaioannou

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