US$ 17.95
stable triggering to 30 MHz
Wide-field 100mm reading magnifier with a 15cm focal length
sized for measuring direction and field strength on the lab bench
Current balance with a B
Color-coded spine and pelvis model differentiates cervical
Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Features_Spout stable triggering to 30 MHzOptically worked glass double convex lens with a 200mm focal length and 1. 5 inch diameter, polished and ground for image formation and refraction demonstrations in physics.
US$ 17.95
US$ 17.95
US$ 89.00
US$ 17.95
US$ 17.95