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(MUSIC)

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JOAN CARTAN-HANSEN, HOST: ALBERT

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EINSTEIN'S THEORIES HAVE CHANGED

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HOW WE VIEW OUR UNIVERSE.

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HERE'S A WAY TO UNDERSTAND

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EINSTEIN'S THOUGHTS ON GRAVITY.

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SO, YOU AND THREE FRIENDS HOLD A

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BEDSHEET BY ITS CORNERS.

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YOU PLACE A BASKETBALL ON THE

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SHEET AND IT ROLLS TO THE

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MIDDLE.

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THE SHEET IS NO LONGER PERFECTLY

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FLAT.

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THE BALL CAUSES A BEND.

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IN EINSTEIN'S THEORY, THE BALL

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IS LIKE THE SUN AND THE SHEET IS

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LIKE SPACE.

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EINSTEIN BELIEVED THAT MASS

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CAUSES SPACE TO BEND.

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SO NOW YOU ROLL A TENNIS BALL ON

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THE SHEET.

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THE TENNIS BALL WILL CIRCLE THE

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BASKETBALL HEADING TOWARD IT.

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ACCORDING TO EINSTEIN, THAT'S

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HOW GRAVITY WORKS.

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BIG OBJECTS PULL SMALLER OBJECTS

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TOWARD THEM.

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EINSTEIN SAYS GRAVITY RESULTS

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FROM THE WAY BIG OBJECTS BEND

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SPACE.

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EINSTEIN ALSO SAID ANYTHING THAT

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HAS MASS BENDS SPACE.

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SO, YOU BEND SPACE TOO!

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FOR MORE INFORMATION ABOUT

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GRAVITY, CHECK OUT THE SCIENCE

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TREK WEBSITE.

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YOU'LL FIND IT AT

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IDAHOPTV.ORG/SCIENCE TREK