This handsome unit uses a blend of old and new technology to interpret the weather. The Galileo thermometer is filled with a clear liquid that suspends multiple colored weights. As the liquid within the weights changes temperature their density changes allowing the weights to rise or fall. The lowest weight at the very top of the Galileo reflects the temperature. The glass water barometer indicates changes in the air temperature. A low fluid level in the glass spout generally means fair weather while a higher fluid level in the glass spout means foul weather approaches.