Copper-Iron Thermopile Lab Supplies_Tongs sized to mount alongside a

sized to mount alongside a tone generator for converting electrical signals into audible tones during sound-wave demonstrations

this ten-piece brass hooked weight set pairs five 50-gram and five 25-gram pieces with retractable hooks on both ends

5/6/9/12V at up to 1A

Clear-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

Copper-Iron Thermopile Lab Supplies_Tongs sized to mount alongside aSeven junction copper and iron thermopile from four 130mm wires of each metal, the series arrangement amplifying the Seebeck voltage for radiant heat detection experiments.