[Avodah] reading thermometers on shabbos

[Zev Sero]

T613K at aol.com wrote:

> The question was, could you take your temperature on Shabbos?  Missing 
> one day would ruin the usefulness of the graph.  The answer we were 
> given was that yes, I could take my temp on Shabbos (recording it on the 
> graph could wait till after Shabbos of course).

That makes sense; it's an open mishna at the end of Shabbos that
measuring is allowed for a mitzvah, and Pru Urvu is certainly a mitzvah.


>  We were using an 
> old-fashioned mercury thermometer.  Those are hard to come by these 
> days.  I don't know what would be the psak with a new-fangled 
> battery-operated thermometer with an LED display and a beep-beep signal.

I imagine the psak would be to find a mercury thermometer on e-bay
or a second-hand shop.

-- 
Zev Sero                      The trouble with socialism is that you
zev at sero.name                 eventually run out of other people’s money
                                                     - Margaret Thatcher