US$ 200.00
sized for general-purpose coil winding and electromagnet construction at the workhorse gauge of the line
Suspends a 20mm solid brass cube from spring scales for Archimedes'-principle and buoyancy measurement
and internal organelles for detailed protist biology teaching
Spring-loaded for hands-free grip
Round Convex Glass Mirror, 75mm Diameter, 200mm Focal Length Material_Steel sized for general-purpose coil windingConvex glass mirror at 75mm diameter and 200mm focal length, ~3. 1mm thick, the longer focal value softening divergence and producing a wider apparent field through reduced virtual reflections.
US$ 200.00
US$ 530.50
US$ 356.50
US$ 98.00
US$ 465.00
US$ 448.00
US$ 341.00
US$ 155.00