Experience a fascinating weather phenomenon with this Thunder Glass, a simple yet historic instrument used since the early 17th century. The water level in the spout reacts to changes in atmospheric pressure: during high pressure on sunny days, it is pushed down, while in low-pressure conditions on cloudy or rainy days, it rises—and can even drip ahead of an approaching storm. Crafted from cast iron and glass with blue dye powder, it comes beautifully packaged in a full-color gift box, making it both a decorative piece and an educational instrument.
Key Features
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Traditional 17th-century thunder glass design
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Cast iron and glass construction with blue dye powder
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Water level reacts to atmospheric pressure changes
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Drips during approaching storms for weather prediction
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Packaged in full-color gift box, perfect for gifting
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Decorative and educational
Specifications
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Material: Cast iron, glass, blue dye powder
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Dimensions: 5.5 × 4.8 × 11 in (14 × 12.2 × 28 cm)
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Color: Blue
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Packaging: Full-color gift box
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Usage: Indoor decorative and educational weather instrument
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Country of Origin: [Insert if known]
