In article ,
alan_m writes:
On 15/01/2019 12:43, Andy Burns wrote:
Andrew Gabriel wrote:

Can you get it cold enough to pull all the mercury into the bulb,
like maybe in your freezer?

Might help to cool the bulb only, rather that the whole thermometer?


Freezer spray?

https://uk.rs-online.com/web/p/freezer-sprays/0846682/

Probably much cheaper elsewhere. Also used for freezing water in
plumbing pipes etc.

Air duster cans used upside down also work (I buy in bulk from Costco),
and also butane lighter refill cans (used outside, away from ignition
sources). Never measured what temp they go down to though.

--
Andrew Gabriel
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