3-Piece Large Acrylic Block Set for Light Demonstrations (Rectangle, Equilateral, Right Isosceles) Subject_Zoology Mid-range single-decade resistance box stepping

Mid-range single-decade resistance box stepping from 100 ohms to 1000 ohms in 100-ohm increments

Greatly magnified HIV virion model separates into two parts exposing the outer envelope and interior capsid with RNA

equipping a class for compound-pulley and variable-diameter work

letting students drive the lamp directly or send the slow AC output to a meter or oscilloscope

plus glass

3-Piece Large Acrylic Block Set for Light Demonstrations (Rectangle, Equilateral, Right Isosceles) Subject_Zoology Mid-range single-decade resistance box steppingDesigned 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.