Measuring Pressure

• Pressure is usually measured with a barometer ("bar" o "meter" - an instrument that measures "bars")

• recall the different units of pressure:

  • 1 bar = 1000 mb

  • at sea level, 1013.25 mb = 29.92 inches of Hg = 76 cm

  • 1 hPa = 1 mb

• OK, let's discuss the different types of barometers....

  • mercury barometer -->>