Build a Replica 15th Century Wooden Wheel Clock
Only four wooden wheels, a rocker arm ( foliot escarpment ) instead of a pendulum, and full visibility of its operation, make this 15th century clock a fascinating conversation piece.
Item # 10 - 6 - 5 Cost >>$2.00 S & H *** U.S.A. >> $2.00
Item # 10 - 4 - 3 Cost >>$2.00 S & H *** U.S.A. >> $2.00
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Build a Model Air Car With a hollow whistling note audible over the whine of its tiny engine, this advanced working model of a ground-effect vehicle skims across the floor supported on a cushion of air. Air is supplied by a prop to a peripheral slot which produces a high-speed wall of air around the edge of the model to retain the lift.
Item # 10 - 6 - 2 Cost >>$2.00 S & H *** U.S.A. >> $2.00
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Build a Model Rotor Sailing Ship
This little model uses an unpowered modified rotor which also provides rotary shaft power to spin an underwater propeller. It's actually a Magnus windmill that will spin regardless of the wind direction.
Item # 10 - 6 - 4 Cost >>$2.00 S & H *** U.S.A. >> $2.00
