Windmill Cars

May 7-10, 2007

The wind car from the blue LEGO Education set surprisingly goes toward the fan.

The project is built in two parts from instructions A and B.

Which side the crown gear goes on is important.

When the car is set facing away from the fan it moves to a point of equilibrium
of  the force from the air and the friction of the slipping wheels against the floor.
Different wheels give a different equilibrium point.

Try making the car from other sets and different sails.

Old fashion pin wheel of stiff paper works great.

Long version of this page
LEGO  Links of Linda Hamilton
With support from
NASA West Virginia Space Grant Consortium.