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Energy from the sun

Someday you may live in a house that keeps itself warm with a tankful of \"sunshine"--- even on cloudy days and chilly nights. Instead of turning on a furnace, you'll use saved-up heat from the sun. ...

Energy from burning

Little Nancy Etticoat, With a white petticoat, And a red nose; She has no feet or hands, The longer she stands, The shorter she grows. Mother Goose Who is Nancy Etticoat? You've seen her often,...

THEATER OF STONE

All the people in a city can't fit into a theater at the same time to see a movie or a play. Movies and plays are usually shown more than once so that everyone who wants to see them has a place to...