It takes the average reader 2 hours to read American Inventors of the 20th Century by Laura S. Jeffrey
Assuming a reading speed of 250 words per minute. Learn more
The ten Americans profiled in this book may not be familiar to some people, but their inventions certainly are. Author Laura S. Jeffrey, who personally interviewed these inventors and/or their survivors, acquaints us with these ten creative and determined people whose accomplishments advanced technology, and thus improved the way of life for many. Profiles of William Lear, Philo Farnsworth, Beatrice Kenner, Gertrude Belle Elion, Gordon Gould, Charles Ginsburg, Robert Shurney, Jack Kilby, Stephanie Kwolek, and Lonnie Johnson are featured.
American Inventors of the 20th Century by Laura S. Jeffrey is 120 pages long, and a total of 30,000 words.
This makes it 40% the length of the average book. It also has 37% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 2 hours and 43 minutes to read American Inventors of the 20th Century aloud.
American Inventors of the 20th Century is suitable for students ages 10 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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