On Mon, 05 Sep 2011 16:52:50 +0100, Invisible wrote:

> On 05/09/2011 04:43 PM, Jim Henderson wrote:
>> On Mon, 05 Sep 2011 10:35:45 +0100, Invisible wrote:
>>
>>>   that water freezes at 0°C (actually no, it
>>> doesn't) and boils at 100°C
>>
>> It also doesn't always boil at 100C - reduce the atmospheric pressure
>> and see when it boils.
> 
> Or increase it. Or add impurities. Or whatever.
> 
> Yes, but under /normal/ circumstances, it boils at 100°C, which is why
> it's defined that way. :-P

Not here at 4,000 feet - "normal" circumstances here have it boiling at a 
slightly lower temperature. :P

IOW, it all depends on how you define "normal".  (Hence my suggestion of 
reducing the atmospheric pressure, because here, lower pressure is 
'normal').

Jim

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