Extended-Range Rheostat, 200 x 44mm, Model B Biology_Health & Genetics lets students compare how line

lets students compare how line density per unit length controls the spacing of the resulting interference pattern

and reproductive glands across a unified anatomical display

1 inches) with red/blue pole markings and steel keepers

this wooden simple-machine model lets students measure input effort against output splitting force at different wedge angles

9-inch sun and eight movable planets

Extended-Range Rheostat, 200 x 44mm, Model B Biology_Health & Genetics lets students compare how lineCompact 200x44mm extended range rheostat at 50 ohms and 2A, the smaller tube counterpart to the 300x44mm standard rheostats with the same constantan winding construction.