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Think A Cog Is Just A Circle With Spikes? Think Again! Cogs Have Been Used To Map The Stars, Travel Along The Great Wall, And Even Race In The Tour De France.This Mighty Models Title Highlights Ten Important Key Moments In Which The Cog Leveled Up In HistoryFrom Being A Wheel To A Telescope In Space. Readers Can Build Their Own Working Pendulum Clock, Using The BuildItYourself Model Included In The Book, To See The Power Of The Cog In Action!Christine Van ZandtS Nonfiction Stem Series For Readers 4 To 8 And Up Perfectly Captures The Marvels Of Early Machinery And How It Plays Into TodayS Technology.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
I loved this book! It tells the legendary life story of the cogwheel in a captivating way. The illustrations are stunning and really enhance the reading experience. Would definitely recommend it to anyone interested in history!
E
Emily Tran
A Fascinating Read for All Ages
I bought this book for my son who’s a huge fan of stories about inventions. The way it dives into the life story of the cogwheel is so engaging, even I found myself getting hooked! Definitely worth the read if you’re into history and mechanics.
L
Lucas O'Connor
Great Gift for Gearheads
Gave this to my brother for his birthday. He’s really into engineering and said it’s packed full of interesting facts. The illustrations are unique and make the history of the cogwheel come alive!
S
Sofia Patel
Interesting, but Somewhat Dry
I enjoyed learning about the cogwheel, but some parts felt a little dry and academic. The anecdotes were good, but I wish there was more excitement in the storytelling. Still, it's a nice addition to any engineering library.
D
Daniel Kim
Unique but had some issues
The content is unique and it certainly covers a lot about cogwheels, but I found the layout a bit confusing at times. Some sections didn’t flow well together. It’s good for niche audiences, just not for casual readers.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
