Fluid Power Car
Using two syringes, a gear train, and special bearings, this hydraulic-powered car moves forward even when you pull back on the syringe!
A fun way to demonstrate the conversion from linear motion to rotary motion. Includes the laser-cut hardboard pieces, wheels and axles, syringes and tubing, friction bands, and other hardware needed to build one car. Requires a screwdriver, not included.