Diffraction Apparatus, Used to map light intensity versus position for many-slit geometries, Slits are made by depositing metal film on glass, creating extraordinarily clean slits with fully opaque blocking areas.
Transformer Accessory Kit 2, Lenz s law transformer accessory kit, demonstrate the production of large magnetic fields and lenz s law damping on pendulums with and without slits
Fan Cart, weight: 0.5 lb., dimensions: 6in x 5in x 5in, two AA size batteries, propeller delivers a thrust of about 88mN, accelerating the cart at 0.4 m/s2
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