Hobbyist Wire Box Kit (Eureka, Constantan, Copper, Iron, Nichrome) Metal Labware_Metal Bases & Rods Five-pulley set of 50mm single

Five-pulley set of 50mm single plastic pulleys on steel frames with end hooks

6 inches for clean pinhole-imaging and diffraction studies

and organelles with hand-painted detail on a mounted base for biology teaching

the halter design keeping arms free for lab

Hand-cranked cam turning against both a straight follower and a lever follower

Hobbyist Wire Box Kit (Eureka, Constantan, Copper, Iron, Nichrome) Metal Labware_Metal Bases & Rods Five-pulley set of 50mm singleHobbyist box kit with seven wire types (Eureka, constantan, bare copper, iron, nichrome, copper coated, and a second copper) for side by side comparison of conductivity and resistance.