Round Convex Glass Mirror, 100mm Diameter, 150mm Focal Length Plastic Labware_Plastic Burettes and link motion reversing mechanism

and link motion reversing mechanism

Built on a leveled cast-iron base with a dual-angle polymer top

Double-concave glass lens at 3-inch diameter and 200mm diverging focal length

Turning the hand crank walks students through every stage of the 2-stroke gasoline firing cycle on a 14-inch model

Simultaneous AC and DC output on this low-voltage power supply

Round Convex Glass Mirror, 100mm Diameter, 150mm Focal Length Plastic Labware_Plastic Burettes and link motion reversing mechanismGlass convex mirror at 100mm diameter and 150mm focal length, the wider face brightening divergence demos while still producing reduced upright virtual images.