
Uniting the Worlds of
Mathematics, Science,
and Technology
 


Web Design:
Al Byers
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Using Technology to Teach Technology
Sail Boat Construction 
Wind power is the
key here, or should I say surface area! Given a fixed pressure blast of air, the larger
the sail area, the greater the amount of pressure exerted to move this sailboat down its
designated track. Drag is also a factor, or resistance to the
movement of the sailboat through the water. To cut down on this, a double pontoon system
has been utilized. Likewise, the underside hull has been shaped in a deep V to
facilitate its glidepath. 
Notice the back of the
pontoons have been weighted down with mass (coins tapped to pontoons) to cause the front
of the pontoons to protrude out of the water at a greater angle. This causes the boat
forward hull not to submerge underwater from the moment arm created with the mast and sail
force. A systematic process of quantitative data was gathered to determine the optimum
amount of mass at a given sail pressure. Finally, one might observe the mast support
structure, and the shape of the mast itself, as geometric triangles were employed.
Crash 'Em/ Rocketteers/
Shake it up Baby

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