3B Scientific™ Helmholtz Resonator
Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance.
3B Scientific™ Electric Doorbell
Demonstrates electro-magnetic operation and verifies that sound waves do not propagate in fine vacuum.
EISCO Melde's Apparatus
Designed to show the effects of vibrations in a stretched cord, and investigate the relationship between frequency, tension and density.
3B Scientific™ Resonance Ring
Demonstrates vibration knots in determination of different frequencies.
3B Scientific™ Kundts Tube
Demonstrate standing sound waves using this glass tube and calculate wavelengths of sound using a method devised by Kundt.
3B Scientific™ Graduated Monochord
Investigate the pitch of vibrating strings as a function of their tension, length, and thickness.
GSC Resonance Apparatus
A simple apparatus that measures the velocity of sound in the air. The GSC Resonance Apparatus measures the velocity of sound in the air. Partially fill the resonance tube with water and then sound a tuning fork of known frequency at the tubes open upper end of the Resonance Tube.
GSC International Resonance Apparatus
Ideal for demonstration of standing waves. GSC International Resonace Apparatus can be used to observe resonance phenomena, speed of sound in air by exploiting standing waves, resonance effects in longitudinal waves, and resonance points for certain frequency and their relation with standing wavelength.