By the Author
Mighty Models: The Legendary Life Story of the Cogwheel
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…
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Mighty Models: The Legendary Life Story of . . . the Lever!
Discover the importance of the lever and its crucial role in history from ancient civilizations to the modern day; perfect for fans of The Highlights…