US$ 13.25
letting students drive the lamp directly or send the slow AC output to a meter or oscilloscope
equipping a class for compound-pulley and variable-diameter work
plus glass
Platinum resistance thermometer with fine platinum wire wound non-inductively on a mica frame and soldered to copper leads
3-Piece Large Acrylic Block Set for Light Demonstrations (Rectangle, Equilateral, Right Isosceles) Subject_Zoology letting students drive the lampDesigned for class front light and prism demos, a 3 piece large acrylic block set ships a 7. 5x4. 3 inch rectangle, 7. 5 inch equilateral, and 7. 25x5. 1 inch right isosceles, all 23mm thick.