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2006-08-03 01:11:00 · 3 answers · asked by Anonymous in Education & Reference ➔ Primary & Secondary Education
So that the heat does not dissipate into the glass on its way to the fluid inside the thermometer. The liquid in the thermometer absorbs the heat and expands, making the liquid rise in the thermometer. If the glass wall was thick, it would absorb most of the heat before it had a chance to reach the liquid, and the thermometer would not be accurate.
2006-08-03 01:15:53 · answer #1 · answered by gadjitfreek 5 · 0⤊ 0⤋
The more glass inbetween the thermometer and what it's supposed to be measuring (the temperature of the air), the longer it will take the thermometer to adjust to display the correct temperature. It takes time for the heat to travel through the glass.
2006-08-03 08:16:03 · answer #2 · answered by 006 6 · 0⤊ 0⤋
there is no bulb its mercury for it to expand and contract
2006-08-03 08:14:18 · answer #3 · answered by meherzad_16 2 · 0⤊ 0⤋