Tranquilizer Dart Gun , The New Zealand Edge . Tumbler Lock , Smith College . American Windmills . Dutch Windmills . Mid-America Windmill Museum , Noble County Indiana Community Access Network .
Necessity is the mother of invention.
A Connecticut Yankee in King Arthur's Court , Mark Twain . Points to Ponder . Stories of Creativity . Try a Real Patent Search . Semester Research Project and Presentations , Gerardo Barrios , Nobel Middle School , CA .