Reed Switch Demonstration Board Item Type_Mug forming a resonance apparatus for

forming a resonance apparatus for determining the speed of sound through frequency and wavelength investigations

Integrated tongue and dentition at 2x life size supports combined teaching of oral cavity anatomy

this premium power supply drives atomic emission demonstrations that reveal each element's characteristic spectral lines

and gauze-fronted object and receiving screens form this 1

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.