(MUSIC)

JOAN CARTAN-HANSEN, HOST: ALBERT

EINSTEIN'S THEORIES HAVE CHANGED

HOW WE VIEW OUR UNIVERSE.

HERE'S A WAY TO UNDERSTAND

EINSTEIN'S THOUGHTS ON GRAVITY.

SO, YOU AND THREE FRIENDS HOLD A

BEDSHEET BY ITS CORNERS.

YOU PLACE A BASKETBALL ON THE

SHEET AND IT ROLLS TO THE

MIDDLE.

THE SHEET IS NO LONGER PERFECTLY

FLAT.

THE BALL CAUSES A BEND.

IN EINSTEIN'S THEORY, THE BALL

IS LIKE THE SUN AND THE SHEET IS

LIKE SPACE.

EINSTEIN BELIEVED THAT MASS

CAUSES SPACE TO BEND.

SO NOW YOU ROLL A TENNIS BALL ON

THE SHEET.

THE TENNIS BALL WILL CIRCLE THE

BASKETBALL HEADING TOWARD IT.

ACCORDING TO EINSTEIN, THAT'S

HOW GRAVITY WORKS.

BIG OBJECTS PULL SMALLER OBJECTS

TOWARD THEM.

EINSTEIN SAYS GRAVITY RESULTS

FROM THE WAY BIG OBJECTS BEND

SPACE.

EINSTEIN ALSO SAID ANYTHING THAT

HAS MASS BENDS SPACE.

SO, YOU BEND SPACE TOO!

FOR MORE INFORMATION ABOUT

GRAVITY, CHECK OUT THE SCIENCE

TREK WEBSITE.

YOU'LL FIND IT AT

IDAHOPTV.ORG/SCIENCE TREK