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Weather Ball Barometer

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Toricelli (1608-1647), who proved that air pressure is subject to variations, devised the first barometer in 1643. Goethe, the famous German playwright, later developed his own simple but effective barometer using the principles established by Toricelli. The Weather Ball, based on Goethe's design, is filled with colored, distilled water.

Once filled, the air inside the ball is no longer subject to variations in atmospheric pressure. The liquid in the indicator tube, however, remains open and is directly affected by atmospheric pressure. When atmospheric pressure rises, the liquid is pushed down in the tube, indicating clear weather. When the pressure lowers, the liquid rises, indicating bad weather. Includes complete instructions.

  • The Carolina Pledge: 100% Satisfaction Guaranteed. All of our products are unconditionally guaranteed. If for any reason you are not satisfied with any item, you may return it for a replacement, a refund, or credit. It's that simple.

  • From our beginnings in 1927, Carolina Biological Supply Company has grown to become a leading supplier of science teaching materials for all levels of education. Today, from our headquarters in Burlington, North Carolina, we serve customers worldwide, including teachers, professors, homeschool educators, hobbyists, and professionals in health and science-related fields.

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Product Information   Specifications for Weather Ball Barometer Below:

Manufacturer Carolina Biological Supply Company
Brand Carolina Biological Supply Company
Units in Package 1

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