
Illustrated by the author.
Language
en
Duration
~6 hours (401K characters)
Publisher of text edition
Project Gutenberg
Release date
2020-09-15
Rights
Public domain in the USA.

1889–1972
Best known for turning radio, electricity, and mechanics into hands-on adventures, this early 20th-century writer helped generations of young readers learn by building things themselves. His books mixed clear instruction with the excitement of invention, making science feel approachable and fun.
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by Alfred Powell Morgan

by Alfred Powell Morgan

by Alfred Powell Morgan

by Alfred Powell Morgan

by Alfred Powell Morgan