Round Convex Glass Mirror, 75mm Diameter, 75mm Focal Length Capacity_17mL Thirteen-piece mix of nine steel

Thirteen-piece mix of nine steel and four brass precision weights from 1 gram to 1 kilogram

producing a smaller flame footprint suited to individual student work on crowded benches

no longer fitting once heating expands its diameter

Wider 70 x 20 x 8mm cross-section on this Alnico bar pair gives a broader pole face than typical bar magnets

totaling 250 grams for suspension from pulleys

Round Convex Glass Mirror, 75mm Diameter, 75mm Focal Length Capacity_17mL Thirteen-piece mix of nine steelDesigned for divergence demos at scale, a 75mm aperture convex glass mirror at 75mm focal length and ~2. 8mm thickness produces reduced virtual images with a notably widened apparent field.