Cylindrical Conductor, 17.5 x 8cm Base Size_8 x 5" a battery-free source of partial

a battery-free source of partial vacuum for bell-jar demonstrations without external power

Speed-controlled 6V motor driving two cams pumps four spring-mass systems at any chosen frequency

Beginner machinist measuring set pairing a vernier caliper

mounted on a 5-inch stainless steel rod with nontoxic powder-coated zinc alloy

Many industrial and hobby hot wire foam cutters also use chromium wire

Cylindrical Conductor, 17.5 x 8cm Base Size_8 x 5" a battery-free source of partialUsed to study charge distribution along a long conductor, this brass cylinder on an ebonite insulated base demonstrates Faraday cage shielding and uniform curvature charge density.