The longitude (abbreviation: Long., Î», or lambda) of a point on the Earth's surface is the angle east or west from a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses (often improperly called great circles), which converge at the north and south poles.
Use the dual thermometers to calculate relative humidity. Fisher Scientific Mason's Hygrometer has one dry thermometer and one wet thermometer which provide temperature readings for determining the relative humidity.
temperature measurement thermometers by ron kurtus revised 13 november 2014 a thermometer is a device used to measure temperature temperature is the average kinetic energy of a material s molecules or its average thermal energy heat is transferred to the thermometer causing changes in its physical properties