|aWhat is technology? -- The technology behind everyday appliances -- How does a screw work? -- What is a toilet's s-bend? -- What makes a lightbulb light up? -- How does a zipper work? -- Why do you put water in an iron? -- How does a refrigerator keep things cold? -- Does a vacuum flask keep things hot or cold? -- How does a can opener work? -- What keeps non-stick frying pans from sticking? -- How does a television signal travel through the air? -- How do cell phones work? -- Why doesn't a microwave oven get hot? -- How were liquid paper and post-it notes invented?
|aTechnological innovations|vJuvenile literature.
|aacquire|b1 shelf copy|xpolicy default
|bxh09 2010-01-14|ixh09 2010-01-14 to Dewey|wrd11 2010-01-14|axe06 2011-01-06 1 copy rec'd., to CIP ver.|fxh10 2011-01-14 CIP Ver. to CALM