Virginia Loh-Hagan - Hedy Lamarr and Classified Communication

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cover

Hedy Lamarr

and Classified Communication

By Virginia Loh-Hagan

21st Century

Junior Library

Published in the United States of America by

Cherry Lake Publishing

Ann Arbor, Michigan

www.cherrylakepublishing.com

Content Adviser: Kirsten Edwards, MA, Educational Studies

Reading Adviser: Marla Conn MS, Ed., Literacy specialist, Read-Ability, Inc.

Photo Credits: science photo/Shutterstock.com, Cover, 1; Dishonored Lady film screen shot/Public Domain/Wikimedia

Commons, 4; Monkey Business Images/Shutterstock.com, 6; tmcphotos/Shutterstock.com, 8; skeeze/Pixabay.com, 10,

20; Sura Nualpradid/Shutterstock.com, 12; Hedy Lamarr (US2292387-1)/United States Patent and Trademark Office/www.

uspto.gov, 14; successo images/Shutterstock.com, 16; Hayk_Shalunts/Shutterstock.com, 18

Copyright 2019 by Cherry Lake Publishing

All rights reserved. No part of this book may be reproduced or utilized in any form or by any means without written permission from

the publisher.

Library of Congress Cataloging-in-Publication Data

Names: Loh-Hagan, Virginia, author.

Title: Hedy Lamarr and classified communication / by Virginia Loh-Hagan.

Description: Ann Arbor : Cherry Lake Publishing, [2018] | Series: Women innovators |

Includes bibliographical references and index. | Audience: Grades 4 to 6.

Identifiers: LCCN 2018003303| ISBN 9781534129122 (hardcover) | ISBN 9781534132320 (pbk.) |

ISBN 9781534130821 (pdf) | ISBN 9781534134027 (hosted ebook) | ISBN 9781684520930 (ebook)

Subjects: LCSH: Spread spectrum communications--Juvenile literature. | Lamarr, Hedy, 1913-2000--Juvenile literature. |

Motion picture actors and actresses--United States--Biography--Juvenile literature.

Classification: LCC TK5102.56.L35 L64 2018 | DDC 621.382--dc23

LC record available at https://lccn.loc.gov/2018003303

Cherry Lake Publishing would like to acknowledge the work of The Partnership for 21st Century Skills.

Please visit www.p21.org for more information.

Printed in the United States of America

Corporate Graphics

CONTENTS

5 A Woman

11 An Idea

17 A Legacy

22 Glossary

Find Out More

Index

About the Author

Lamarr starred in many movies as a leading lady .

A Woman

How many times a day do you go online ?

Most of us go online every day . Information

is at our fingertips . Its easy to look things

up . Its easy to communicate with other

people . The Internet has changed our lives .

Thanks to Hedy Lamarr , we can connect to

the Internet from almost anywhere.

Lamarr was a famous movie star . But

she was also an inventor . Shes known as

the mother of Wi-Fi .

People type in passwords to use the Internet .

Lamarr was born Hedwig Eva Maria

Kiesler . She was born on November ,

1913 , in Vienna , Austria . She later moved to

the United States and became a U.S . citizen .

Her mother was a concert pianist . Her

father was a banker . Lamarr grew up

surrounded by smart , creative people .

She was encouraged to think and explore .

At years old , she took apart her music

Look at an old toy you have . Now take it apart , like Lamarr did .

Figure out how it works .

Look !

Inventors get their ideas from everywhere.

box and then put it back together . She

liked to see how things worked .

Lamarr started making movies as a

teenager . She first made movies in Europe

and then moved to Hollywood . She

became a star . Everyone knew her face .

She was the model for Snow White , the

character in Disneys movie Snow White

and the Seven Dwarfs . She was called the

most beautiful woman in the world .

But she was more than just a pretty

face . Lamarr was a wife , mother , and

inventor . She was married six times and

had three children . She died on January

, 2000 , in Florida .

Lamarr loved learning new things .

An Idea

In 1933 , Lamarr married Friedrich

Mandl . He hosted meetings with scientists

and military experts . Lamarr was at his

side . She learned about innovations in

the military and in radio . This sparked her

interest in science . But she lost her interest

in Mandl . After four years of marriage , she

left him .

She used what she learned from her

time with Mandl to support the Americans

Music and math are connected . Music can be

described in mathematical terms .

in World War II . She wanted to help fight

the Nazis .

She worked with George Antheil , a

music composer . Together , they created

a secret communications system . It was

a radio guidance system for torpedoes .

The guidance system hopped radio

frequencies . Instead of staying on one

frequency channel , it switched and used

many channels . This kept information

secure so enemies couldnt decode

where the torpedoes were going .

Lamarr and Antheil combined what

they knew . Lamarr knew about weapons .

Antheil knew about player pianos . He wrote

This is a drawing of their patent .

music that required player pianos to

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