"tube coolers"

The Student Coin and Feather Tube shows the two items in a vacuum, falling at the same rate.

Used to investigate wavelength in air.

With the Resonance Apparatus, students investigate the effect of frequency on wavelength.

The movement of liquid currents due to differences in temperature is demonstrated by introducing dye into the water in the tube. One corner of the tube is heated and the movement of the dye clearly establishes the currents. The rectangular shaped tube measures 15×21 cm and has an opening at the top.

Study the motion and behavior of gas molecules with this intriguing demonstration. An electric motor, running at 4 to 12 V DC, vibrates a small platform inside a transparent tube. This platform then violently vibrates the many small stainless steel balls inside the tube.

With the magnet is on the outside, it's easy to see the science behind these eddy tubes.

The high-frequency coil can be used to test vacuum equipment for leakage or excite electrical tubes for demonstrations.

This Ballistics Cart demonstrates the independence of vertical and horizontal motions.

Demonstrate the conversion energy into different forms.

The Air Core Solenoid is perfect for induced magnetic field studies.