A basic, inexpensive Fan Cart powered by two
AA size batteries (not included) demonstrates Newton’s principle
of action and reaction. The
batteries are contained in the removable power unit and the fan is
controlled by a switch. The
propeller delivers a thrust of about 88mN, accelerating the cart
at 0.4 m/s2. A
transparent plate can be attached to show the effect of reversing
Includes an activity guide.
6" x 5" x 5".