US$ 25.51
Sturdy wooden pulley simple-machine model with multiple pulleys mounted in series and parallel
and vascular tissue at greatly magnified scale
allowing this tangent galvanometer to convert deflection angle into an absolute current reading
Double-parallel plastic pulley with two 50mm wheels in a steel frame and end hooks
Engineered to produce a hotter
Center of Mass Roller-and-Ramp Demonstrator, 17" Microscopy_Microscopy Equipment &Supplies Sturdy wooden pulley simple-machine modelClear coated wooden A ramp at 17 inches long paired with a double ended cone roller that appears to travel uphill while its center of mass actually descends along the diverging rails.
US$ 25.51
US$ 760.52
US$ 160.65
US$ 26.29
US$ 575.19
US$ 133.62
US$ 57.56