20m Fiberglass Tape Measure with PVC Cover and Winding Handle Type_Tall Form this handle-fitted bicycle wheel lets

this handle-fitted bicycle wheel lets students feel torque resistance in a spinning mass

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

The wavelength can be changed with the help of variation in frequency & stress generated using different weights on the one end of rope/thread

Used to wind precision resistance coils that don't drift with temperature

20m Fiberglass Tape Measure with PVC Cover and Winding Handle Type_Tall Form this handle-fitted bicycle wheel letsFor field surveys, outdoor physics activities, and long distance laboratory exercises, this twenty meter fiberglass tape measure carries a non conductive waterproof PVC coating.