US$ 12.50
5 inches with a brass-chrome water wheel in a 10cm aluminum casing
Sequential mitosis stages — prophase
Hand-cranked to convert mechanical work into electrostatic energy
Four-finish Leslie's cube in tinplate at 13cm per side — blackened
Force Oscillation and Resonance Demonstration Kit Subcategory_Kinematics 5 inches with a brass-chromeSpeed controlled 6V motor driving two cams pumps four spring mass systems at any chosen frequency, letting students sweep through resonance and watch amplitude peak when drive matches natural pitch.
US$ 12.50
US$ 29.99
US$ 29.99
US$ 29.99
US$ 29.99