US$ 65.00
Double-concave glass lens at 3-inch diameter and 200mm diverging focal length
and buffers for velocity
and follicles on a mounted base for dermatology teaching
and 500mm focal lengths for comparative refraction experiments
the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles
Round Convex Glass Mirror, 100mm Diameter, 150mm Focal Length Plastic Labware_Plastic Burettes Double-concave glass lens at 3-inchGlass convex mirror at 100mm diameter and 150mm focal length, the wider face brightening divergence demos while still producing reduced upright virtual images.
US$ 65.00
US$ 103.83
US$ 674.30
US$ 212.30
US$ 150.00
US$ 169.40