What barometer is made of
Torricelli’s instrument for measuring atmospheric pressure.
- Glass tube — has part. A tube sealed at the top.
- Mercury cistern — has part. An open reservoir.
- Measurement scale — has part. Millimetres of mercury.
- Pressure — uses. It measures pressure.
- Vacuum — uses. The Torricellian vacuum above the mercury.
- Mercury — is made of. A column of mercury.