On Sunday 09 January 2011 18:58:28 Pat Naughtin wrote: > I also once had two degree Celsius thermometers with suction circles that I > could seal onto glass. I placed one inside a glass door and the other > outside. That way you could check the inside temperature, the outside > temperature, and calculate the difference without opening the door.
My mom had, in the previous house in Raleigh, North Carolina, a double thermometer with one having a thin tube routed through the window to the bulb outside. One night it was -18 °C outside and it was all the heating system (which used a heat exchanger and well water) could to to keep it at +18 °C inside. Here in Charlotte it's been -9 °C a few times in the past few weeks, but that's about as low as it gets. Pierre -- La sal en el mar es más que en la sangre. Le sel dans la mer est plus que dans le sang.
