Jawapan

2016-06-06T17:59:49+08:00
1. size of bulb small
- do not need a lot of heat up the mercury to expand

2. use thin wall of bulb
- so it sensitive to the change of heat

3. small capillary tube
- able quick heat transfer from surrounding to the mercury

4. minimum size scale w small division
- increase sensitivity

Levine ;)