Barometers have been used since the 1600s to predict weather. When atmospheric pressure rises, the water in the swan's neck falls and fair weather can be expected. When the water rises, be ready for rain. The borosilicate glass swan arrives with a syringe pre-filled with black food-grade dye. Designed and assembled in Ottawa, Canada. ?7"H x 3"W x 7"D.
Black Swan Storm Glass Weather Predictor
Black Swan Storm Glass Weather Predictor
$59.95