Description
forming a resonance apparatus for determining the speed of sound through frequency and wavelength investigations
and gauze-fronted object and receiving screens form this 1
sweat glands
sized to stack on a vertical rod for like-pole repulsion levitation demonstrations
this premium power supply drives atomic emission demonstrations that reveal each element's characteristic spectral lines
Reed Switch Demonstration Board Item Type_Mug forming a resonance apparatus forHeavy duty reed switch on a demonstration base with 4mm plug connections, closing when a magnet is brought near to introduce magnetic actuated switching alongside hand operated switches.
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