Optically Worked Double Convex Glass Lens, 75mm Diameter, 300mm Focal Length Glassware_Glass Flasks Hand-painted female pelvis model exposes

Hand-painted female pelvis model exposes ilium

5 inch rod combines a threaded-end screw bolt with a magnetic post base

including the hydroxyl group central to alcohol chemistry

this eight-piece weight set bundles precision-machined steel shafts spanning 10 to 500 grams on a wooden block

Selectable-range light sensor reading 0 to 150

Optically Worked Double Convex Glass Lens, 75mm Diameter, 300mm Focal Length Glassware_Glass Flasks Hand-painted female pelvis model exposesLong focal double convex glass lens at 75mm diameter and 300mm focal length, the f 4 geometry pushing focal point well downrange for projection style image formation demos.