Bell in Vacuum Experiment for Sound Wave Demonstrations Size_Small Three-part color-coded human skull model

Three-part color-coded human skull model differentiates bone regions and sutures for detailed cranial anatomy instruction

Demonstrates the one-way current behavior of a rectifier diode rated up to 6A at 400V

sized for compass-deflection and small-scale field-line investigations

Greatly magnified HIV virion model separates into two parts exposing the outer envelope and interior capsid with RNA

Life-size stomach model shows gastric fundus

Bell in Vacuum Experiment for Sound Wave Demonstrations Size_Small Three-part color-coded human skull modelIllustrates that sound needs a medium to travel through a 10 inch acrylic bell jar with internal buzzer, rubber stopper, and lead plugs for pump plate connection during evacuation.