US$ 11.25
Manually-operated seismograph model that traces shock waves onto a pulled paper strip
and engineering classroom activities
and classroom precision measurement
fulcrum balance
pyrotechnic seatbelt actuation
Brass Tube Resonance Apparatus Subcategory_Botany Models Manually-operated seismograph model that tracesBrass 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.