US$ 34.95
Open-frame demonstration DC motor exposing armature
green) and three secondaries (cyan
this super-taster set pairs PTC
Pocket-sized 45mm aluminum compass with a graduated dial
Pairs 74mm of length with a 50mm hypotenuse on a polished acrylic right-angled prism
Melde's Vibrating String Apparatus Chemistry_Molecular Model Sets Open-frame demonstration DC motor exposingFor introducing standing waves, this Melde's vibrating string apparatus pairs an oscillator driven string with a mass tray that adjusts tension to determine wavelength, period, and amplitude.
US$ 34.95
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