US$ 25.00
5-inch stainless steel rod
Battery-powered iron-clad electromagnet that lifts up to 100 pounds from its end hooks on four C cells
fulcrum balance
Slotted with a central well on each glass
Brass Tube Resonance Apparatus Subcategory_Botany Models 5-inch stainless steel rodBrass tube resonance apparatus designed to amplify a struck tuning fork at specific air column lengths, letting students plot resonance against length and back calculate the speed of sound.
US$ 25.00
US$ 27.95
US$ 11.00
US$ 70.00
US$ 17.00
US$ 15.00