Totally Absurd Inventions
From the tricycle lawn mower to the diaper alarm, read about some of the strangest patents ever applied for.
Reinvent the Past: Famous Inventions
Find out how the airplane, automobile, light bulb, telegraph, and bifocal glasses came into existence in this Thinkquest Junior site.
Smith College Museum of Ancient Inventions
Virtual museum includes photographs and brief descriptions of the tools of a bygone era.