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.
Can magnets be used to move the cars? Yes
Try making the car from other sets and different sails.
Old fashion pin wheel of stiff paper works great.
Since it is the last chance for some students to build they made
some projects they liked.
The drop car was on lesson
plans.
They saw the gate at the LEGO City and operated that one there
and theirs here.
