NAND Logic Gate, 2-Input Item Type_Spoon Manually-operated seismograph model that traces

Manually-operated seismograph model that traces shock waves onto a pulled paper strip

Used to compare magnet strengths across the bar-magnet series

5-inch skeleton in various positions for kinesiology demonstrations

used to demonstrate charging by induction and repeated transfer of charge

Two-inch vinyl-coated fingers on this three-finger extension clamp mount to a swivel boss head fitting rods up to 18mm

NAND Logic Gate, 2-Input Item Type_Spoon Manually-operated seismograph model that tracesUniversal 2 input NAND gate module with red green LED outputs and a printed truth table, the universal gate from which any other Boolean function can be built in digital electronics work.