. . . . . . "Juvenile works"@en . "Juvenile works" . . "Presents the story behind the invention of over 60 commonly used items including alarm clocks, jello, tea bags, and zippers." . . . . "Why didn't I think of that? : from alarm clocks to zippers"@en . . . "Why didn't I think of that? : From alarm clocks to zippers"@en . "Why didn't I think of that? : From alarm clocks to zippers" .