An instrument that measure air pressure is called _____?
An instrument that measure air pressure is called _____?
ہوا کے دباؤ کی پیمائش کرنے والا آلہ کیا کہلاتا ہے؟
Explanation
The mercury barometer is the oldest type of barometer.
It was invented by the Italian physicist Evangelista Torricelli in 1643.