This simple device gives a graphic demonstration of the suns radiative energy. A large convex mirror concentrates solar radiation onto a small container of water suspended at the mirrors focal point. In a few minutes, the water boils. The mirrors angle is adjustable though 180-degree to allow it to be aimed at the sun at any time of day. Measurements include: 30 inch mirror; aperture area (800 cm2); mirror focal length (16 centimeter); furnace capacity (20 ml); base diameter: 22 centimeter); height 33 to 45 centimeters; and weight (480 grams). Shipping Details Shipping Type: parcel Free Shipping: true Specifications Maximum Age: 18 Years Maximum Grade Level: Grade 12 Allergens: Contains No Allergens Certifications: Not Applicable Grade Level: Middle-High School Specialty Shops: Clearance SUOM Description: Each Brand Name: United Scientific Description: Solar Furnace
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