US$ 49.95
Plastic-cased solar energy kit with a panel
Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties
Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric
rocker arms
Two-Sided Boss Head Clamp, Painted Die-Cast, up to 19mm Rods Pack Size_Single Plastic-cased solar energy kit withHeavy duty die cast alloy boss head with a painted gray finish and two adjustable thumbscrews, accepting rods up to 19 mm in diameter for larger retort stand assemblies.
US$ 49.95
US$ 10.00
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US$ 79.95
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