Mercury

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Van Chocstraw

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Are mercury thermometers more accurate than blue wax or red alcohol
thermometers?




--
<<//--------------------\\>>
Van Chocstraw
>>\\--------------------//<<
 
"Van Chocstraw" <boobooililililil@roadrunner.com> wrote in message
news:eek:fWdnYiiDpAs2ezUnZ2dnUVZ_qPinZ2d@giganews.com...
Are mercury thermometers more accurate than blue wax or red alcohol
thermometers?
Click to expand...
WTF does this have to do with electronics?

Bob
--
== All google group posts are automatically deleted due to spam ==
 
BobW wrote:
"Van Chocstraw" <boobooililililil@roadrunner.com> wrote in message
news:eek:fWdnYiiDpAs2ezUnZ2dnUVZ_qPinZ2d@giganews.com...

Are mercury thermometers more accurate than blue wax or red alcohol
thermometers?




WTF does this have to do with electronics?

Bob
So what's wrong with that?
Click to expand...

We use fishing line in side of a 250kW oscillator cabinet,
stretched across the path of the tube, holding a lever of a
wobble switch as a thermo protection device.

It's an irradiation machine, I think they're plenty of electrons
flowing around in there.


http://webpages.charter.net/jamie_5"
 
On Fri, 16 Jan 2009 21:38:39 -0500, Van Chocstraw wrote:

Are mercury thermometers more accurate than blue wax or red alcohol
thermometers?
Click to expand...
Not intrinsically. Each has a well-known coefficient of thermal expansion;
the variations come from the defects in the bore of the tube.

Hope This Helps!
Rich
 
"Rich Grise" <rich@example.net> wrote
On Fri, 16 Jan 2009 21:38:39 -0500, Van Chocstraw wrote:

Are mercury thermometers more accurate than blue wax or red alcohol
thermometers?

Not intrinsically. Each has a well-known coefficient of thermal expansion;
the variations come from the defects in the bore of the tube.

Hope This Helps!
Rich
Click to expand...
....assuming that coefficient of expansion is reasonably constant
W.R.T. temperature in the temperature range of interest, which
seems to be an acceptable assumption.

Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.livejournal.com/userinfo.bml?user=fleetie
 
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion
Click to expand...
And the OP may be interested to know that the above link says
that alcohol expands MUCH more than does mercury
(750 vs. 182 (* 10^-6 K^-1), volumetric expansion).


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.livejournal.com/userinfo.bml?user=fleetie
 
"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says
that alcohol expands MUCH more than does mercury
(750 vs. 182 (* 10^-6 K^-1), volumetric expansion).
Click to expand...
It might be worth reminding the OP, if the thermometer gets broken - mercury
is toxic!
 
"ian field" <gangprobing.alien@ntlworld.com> wrote in message
news:pXNcl.100276$dD1.1824@newsfe11.ams2...
"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says
that alcohol expands MUCH more than does mercury
(750 vs. 182 (* 10^-6 K^-1), volumetric expansion).


It might be worth reminding the OP, if the thermometer gets broken -
mercury is toxic!

It tastes like tuna.
Click to expand...
 
"amdx" <amdx@knology.net> wrote in message
news:6b84b$4973de24$18d6b40c$18502@KNOLOGY.NET...
"ian field" <gangprobing.alien@ntlworld.com> wrote in message
news:pXNcl.100276$dD1.1824@newsfe11.ams2...

"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says
that alcohol expands MUCH more than does mercury
(750 vs. 182 (* 10^-6 K^-1), volumetric expansion).


It might be worth reminding the OP, if the thermometer gets broken -
mercury is toxic!

It tastes like tuna.
Click to expand...
Oh my! So does my girlfriend.

Bob
--
== All google group posts are automatically deleted due to spam ==
 
In article <dradnVpB4Kdmdu7UnZ2dnUVZ_sTinZ2d@giganews.com>,
nimby_GIMME_SOME_SPAM@roadrunner.com says...>
"amdx" <amdx@knology.net> wrote in message
news:6b84b$4973de24$18d6b40c$18502@KNOLOGY.NET...

"ian field" <gangprobing.alien@ntlworld.com> wrote in message
news:pXNcl.100276$dD1.1824@newsfe11.ams2...

"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says
that alcohol expands MUCH more than does mercury
(750 vs. 182 (* 10^-6 K^-1), volumetric expansion).


It might be worth reminding the OP, if the thermometer gets broken -
mercury is toxic!

It tastes like tuna.

Oh my! So does my girlfriend.
Click to expand...
Why shouldn't Mercury taste something like Venus?
 
On Sun, 18 Jan 2009 22:20:56 -0000,
ian field <gangprobing.alien@ntlworld.com> wrote:
It might be worth reminding the OP, if the thermometer gets broken - mercury
is toxic!

While mercury is toxic (as are all heavy metals) it really isn't that
Click to expand...
toxic when in its elemental form.

If a child bites the end off a mercury thermometer and swallows it,
casualty will be far more worried about the glass than about the
mercury.

Some organic compounds of mercury are amongst the most toxic chemicals.

Tim.

--
God said, "div D = rho, div B = 0, curl E = - @B/@t, curl H = J + @D/@t,"
and there was light.

http://www.woodall.me.uk/
 
On Mon, 19 Jan 2009 08:42:37 -0600, krw <krw@att.zzzzzzzzz> wrote:

In article <dradnVpB4Kdmdu7UnZ2dnUVZ_sTinZ2d@giganews.com>,
nimby_GIMME_SOME_SPAM@roadrunner.com says...
"amdx" <amdx@knology.net> wrote in message
news:6b84b$4973de24$18d6b40c$18502@KNOLOGY.NET...

"ian field" <gangprobing.alien@ntlworld.com> wrote in message
news:pXNcl.100276$dD1.1824@newsfe11.ams2...

"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says
that alcohol expands MUCH more than does mercury
(750 vs. 182 (* 10^-6 K^-1), volumetric expansion).


It might be worth reminding the OP, if the thermometer gets broken -
mercury is toxic!

It tastes like tuna.

Oh my! So does my girlfriend.

Why shouldn't Mercury taste something like Venus?
Click to expand...
---
Quite an earthy query.

JF
 
On Sun, 18 Jan 2009 18:57:03 -0800, BobW wrote:
"amdx" <amdx@knology.net> wrote in message
"ian field" <gangprobing.alien@ntlworld.com> wrote in message
"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says that
alcohol expands MUCH more than does mercury (750 vs. 182 (* 10^-6
K^-1), volumetric expansion).

It might be worth reminding the OP, if the thermometer gets broken -
mercury is toxic!

It tastes like tuna.

Oh my! So does my girlfriend.

You should teach her how to bathe.
Click to expand...

Cheers!
Rich
 
On Mon, 19 Jan 2009 20:23:13 GMT, Rich Grise <rich@example.net> wrote:

On Sun, 18 Jan 2009 18:57:03 -0800, BobW wrote:
"amdx" <amdx@knology.net> wrote in message
"ian field" <gangprobing.alien@ntlworld.com> wrote in message
"Fleetie" <fleetie@fleetie.demon.co.uk> wrote in message
news:Eq-dnZHsu7NF0u_UnZ2dnUVZ8umdnZ2d@bt.com...
Wikipedia is surprisingly unhelpful on this:

http://en.wikipedia.org/wiki/Coefficient_of_expansion

And the OP may be interested to know that the above link says that
alcohol expands MUCH more than does mercury (750 vs. 182 (* 10^-6
K^-1), volumetric expansion).

It might be worth reminding the OP, if the thermometer gets broken -
mercury is toxic!

It tastes like tuna.

Oh my! So does my girlfriend.

You should teach her how to bathe.
Click to expand...
---
God found Adam in the Garden of Eden and asked, "Where's Eve?"
"She started bleeding so she went down by the stream to wash" said Adam.
"Oh no!" said God, "We have to stop her!"
"Why?" said Adam, alarmed.
"Because I'll never get the smell out of the fish!"

JF
 
Van Chocstraw wrote:
Are mercury thermometers more accurate than blue wax or red alcohol
thermometers?




This is a dumb question !!
Click to expand...
A thermometer is only as accurate as its Calibration ! after all , all
of of the marks are relative !
Is the question being asked "Which is more reproduce-able".
Maybe it should be Is a Thermocouple more accurate than RTC element or a
Thermistor!
Yukio YANO
 
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