A lovely conversation starter and a fun example of early scientific measurement, this Galileo thermometer and Glass Barometer set from Lily's Home engages the eye while monitoring the weather.Designed for approximate interpretation of temperature and general prediction of fair or foul weather, the set features glass instruments that rely on the principles of buoyancy and air pressure for their function.In the thermometer, the brightly colored internal spheres rise and lower with fluctuations in temperature and corresponding density.The glass barometer is shaped like a globe with beautiful etched designs. It works by shifting liquid to and from its curved spout in response to changes in the air pressure.Both pieces are beautifully shaped with a wooden base that makes the set easy to display on desk or bookshelf.The station measures 9-inches in length and stands at 12-inches in height.The thermometer measures every 4º degrees (2.2c) from 64º F (18c) to 80º F  (27c)and is accurate to within 2º F (1c) degrees with five floats.