US$ 25.00
Three-range digital lux meter reading 100
this 15-inch motion-converter model shows the engineering principle behind crankshaft pistons and rotary-to-linear mechanisms
Eight 15 x 10 x 10cm pinhole boxes
sized for general-purpose coil winding and electromagnet construction at the workhorse gauge of the line
Boyle's Law Apparatus, Standard Material_Cork Three-range digital lux meter readingTwo tube Boyle's Law apparatus connecting an open J tube to a closed one with mercury through a rubber bridge, mounted on cast iron with a wooden board and meter rule for column height reading.
US$ 25.00
US$ 199.99
US$ 76.99
US$ 2789.50