Scientific Instruments — Set 7

Which instrument is used to measure the atmospheric pressure?

Which instrument is used to measure high temperatures from a distance?

Which instrument is used to measure the speed of wind?

Which instrument is used to detect and record earthquake tremors?

Which instrument is used to see objects above eye level, like from a trench?

Which instrument is used to measure very small electric currents?

Which instrument is used to measure blood pressure?

A seismograph is used to measure?

Which instrument is used to measure the specific gravity of liquids?

A periscope works on the principle of?