Books by Tech Tron
How Things Work : The Inside Out of Cellphones, TV, Drones, Race Cars and More! | Machinery & Tools Rating: 2 out of 5 stars2/5Who Discovered Electricity? | Beginning Electronics Grade 5 | Children's Inventors Books Rating: 5 out of 5 stars5/5Most Important Inventions Of All Time | Inventions for Kids | Children's Inventors Books Rating: 0 out of 5 stars0 ratingsInventions That Shaped America | US Industrial Revolution Books Grade 6 | Children's Inventors Books Rating: 0 out of 5 stars0 ratingsThe Most Famous Inventors Who Ever Lived | Inventor's Guide for Kids | Children's Inventors Books Rating: 0 out of 5 stars0 ratingsEarth's Most Powerful Telescopes | Optics for Grade 5 | Children's Physics Books Rating: 0 out of 5 stars0 ratingsFrom Paper Map to GPS : Evolution of Geographic Tools | World Explorers' Tool Grade 6 | Children's Inventors Books Rating: 0 out of 5 stars0 ratingsElias Howe and His Sewing Machine | U.S. Economy in the mid-1800s Grade 5 | Children's Computers & Technology Books Rating: 0 out of 5 stars0 ratingsHow Are Lasers Used Today? | Light and Optics for Grade 5 | Children's Physics Books Rating: 0 out of 5 stars0 ratings