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,...
Energy from movement
Poor old Bristlebones! His pirate ship has sailed away and he's stranded on a tiny island. He can think of only three ways to get help. He can fly a kite and hope somebody on another ship sees it. He...
How do you make a push?
Opening doors, playing baseball, running a race, practicing for a school play---you really keep moving. How does your body keep going? What makes you move? You keep moving in almost the same way a...
IT’S DONE WITH MIRRORS
When a magnifying glass is held the right distance from a piece of paper, it brings the sun's rays together at one point---the burning point. The heat at this point is so great, it burns the paper. ...
The source of life
Without the sun, there could be no life on earth. Energy pours up out of the raging hot atomic furnace that is the center of the sun. It moves up to the sun's seething, boiling surface and rushes...
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