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. An increase in the violence of vibration simulates an increase in gas temperature; and an increase in the weight of the “float” also simulates an increase in gas pressure. Includes balls and two floats. Size: 15.7 x 12.7 x 28cm; weight: 499g.
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