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Le 2011-07-29 10:05, Invisible a écrit :
> On 29/07/2011 02:51 PM, Francois Labreque wrote:
>
>> Also, the bottle
>> says that it is NOT an anti-corrosive agent, and that it should be mixed
>> with one, preferably their own, of course.
>
> You can READ that?? o_O
>
Sure.
http://image.ebuyer.com/UK/P800-0179913-01.jpg
while fuzzy, it's big enough to read.
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/* gmail.com */}camera{orthographic location<6,1.25,-6>look_at a }
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>> You can READ that?? o_O
>
> Sure.
>
> http://image.ebuyer.com/UK/P800-0179913-01.jpg
>
> while fuzzy, it's big enough to read.
Barely...
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On 29/07/2011 05:51 PM, Darren New wrote:
> On 7/29/2011 1:26, Invisible wrote:
>> pH 2 is *very* acidic.
>
> Oh, I got that backwards.
Did I mention that my dad's a professional chemist and that I work for a
lab company? Or that I scored 98% on my GCSE science exam? Or that my
sister has an MSc in chemistry? Or that I personally own a chemistry
set? :-P
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On 29/07/2011 06:15 PM, B. Gimeno wrote:
> I'ts also absolutey germ-free, suppose that it will keep virus away from your
> pc.
>
> ;-)
It's not the RNA viruses I'm worried about!
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On 01/08/2011 8:59 AM, Invisible wrote:
> Or that I personally own a chemistry set? :-P
Trust me, I own a chemistry set. ;-)
LOL
--
Regards
Stephen
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On 29/07/2011 05:54 PM, Darren New wrote:
> On 7/29/2011 3:07, Warp wrote:
>> the "requires a degree" part is an exaggeration
>
> More like "requires remembering the first day of high-school chemistry
> class, that you've never touched since." :-)
Seriously. Everybody knows that water freezes at 0°C (actually no, it
doesn't) and boils at 100°C. I've yet to meet anybody who didn't know
that. Similarly, I was under the impression that knowing that water is
pH 7 was common knowledge...
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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.
Jim
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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
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Le 2011/09/05 11:52, Invisible a écrit :
> 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
Pure water at average sea level presure boils/condense at 100°C and
melt/freeze at 0°C at the same presure level. Both by definition. In
fact, it's the definition of 0°C and 100°C.
(0°F is defined as the freezing poing of sea water and 100°F as the body
temperature of a "healthy" human male, but the "healthy" human male who
was used for the original mesure was somewhat feverish at the time, and
had the flue the next day...)
Change the presure and you also change freezing temperature.
Alain
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Alain <aze### [at] qwerty org> wrote:
So, does water freeze or melt at exactly 0 degrees celsius?
--
- Warp
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