On 16/01/2019 05:19, The Natural Philosopher wrote:
On 15/01/2019 17:23, Robin wrote:
On 15/01/2019 17:07, Tim+ wrote:
dennis@home wrote:
On 15/01/2019 10:46, fred wrote:
Mercury has split and vigourous shaking is not effective. Any other
solutions ?


When mine did that I heated it up until most the mercury went into the
expansion bulb.
Then it cooled with the mercury unbroken.

You have to be sure that none of the liquid passes the mercury.



What liquid?


The liquid (eg alcohol) in the bulb that pushes the mercury round the
glass into the vacuum as the temperature rises.Â* The mercury is just
an indicator.


No, it isn't


Are you suggesting that it's not a "Six's thermometer"?

Or are you taking the point that the length of the mercury will also
change with temperature? (IIRC by about 1 mm for a temperature change
of 50 degrees C in a typical small model.)





--
Robin
reply-to address is (intended to be) valid