Virginia Loh-Hagan - Katharine Blodgett and Invisible Glass

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cover

Katharine Blodgett

and Invisible Glass

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: Ben Schonewille/Shutterstock.com, Cover, 1; Natalia Lebedinskaia/Shutterstock.com, 4; Syda Productions/

Shutterstock.com, 6; tomertu/Shutterstock.com, 8; Sergey Nivens/Shutterstock.com, 10; Smithsonian Institution

Archives/Image # SIA2007-0282, 12; Evgeny Starkov/Shutterstock.com, 14; tristan tan/Shutterstock.com, 16; Jaromir

Chalabala/Shutterstock.com, 18; Onchira Wongsiri/Shutterstock.com, 20

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: Katharine Blodgett and invisible glass / by Virginia Loh-Hagan.

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

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

Identifiers: LCCN 2018003308| ISBN 9781534129160 (hardcover) | ISBN 9781534130869 (pdf) |

ISBN 9781534132368 (pbk.) | ISBN 9781534134065 (hosted ebook)

Subjects: LCSH: Blodgett, Katharine B. (Katherine Burr), 1898-1979--Juvenile literature. | Women glassworkers--Biography--Juvenile

literature. | Industrial chemists--United States--Biography--Juvenile literature. | Women chemists--United States--Biography--

Juvenile literature. | Glass coatings--Juvenile literature. | Anti-reflective coatings--Juvenile literature.

Classification: LCC TP806.B55 L64 2018 | DDC 666/.1092 [B] --dc23

LC record available at https://lccn.loc.gov/2018003308

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

| ISBN 9781684520923 (ebook)

CONTENTS

5 A Woman

11 An Idea

17 A Legacy

22 Glossary

Find Out More

Index

About the Author

Everything around you was invented by someone .

A Woman

Do you wear glasses ? Do you look out

car windows ? Do you put photos in picture

frames ? All these things use a special type

of glass . And this glass was invented by

Katharine Blodgett .

Blodgett was an engineer and scientist .

Shes known for inventing non- reflective

glass . This is also known as invisible glass .

She came up with the process for how to

make it .

Blodgett wrote , spoke , and read in

both English and French .

Blodgett was born on January , 1898 ,

in Schenectady , New York . Her father was a

famous patent lawyer . He worked for

General Electric . He died unexpectedly .

Blodgett and her mother moved to

France after his death . They later returned

to New York . She got a better education

than most girls of her time . She did really

well in math and science .

Look around you . Make a list of things that are made of glass .

Make a list of things that have glass parts .

Look !

Blodgett finished high school when she was only .

Blodgett was smart and got top

grades . She was the first woman to get

a doctorate in physics from Cambridge

University in England .

She was also creative . She loved

gardening and acting in plays . She

collected old furniture and wrote funny

poems . She was a member of the Zonta

Club . This is a club of professional women

that helps women all around the world .

She died on October , 1979 .

Mentors help people grow in their jobs and lives .

An Idea

Blodgett didnt have many options during

her time . Most educated women became

teachers . But Blodgett wanted to do more .

She was the first female research scientist

hired by General Electric . She worked there

her whole life .

She was mentored by Irving Langmuir .

Langmuir had also worked with her father .

Blodgett learned a lot from him . They

worked together on many projects.

Blodgett also worked with metal .

Blodgett built on Langmuirs work . She

invented a way to apply coatings layer by

layer to glass . She coated glass with a

soapy film . These coatings were thin .

Blodgett stacked the layers . She repeated

her process . She layered the glass to a

certain thickness . She worked very hard to

be accurate . At a certain thickness , the

layers remove any reflection .

Blodgett had created the worlds first

invisible glass . Her glass is transparent .

Light passes through it , and no light is

Projectors and cameras use Blodgetts invisible glass .

reflected back . This makes it invisible .

People can see clearly through the glass .

Blodgett and her invention were featured

in many newspapers and magazines . She

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