The printed book #1. FREE option. You will pay only for delivery!
What is the most important organ in the human body? In book #1 we will talk about the heart: an indefatigable and faithful worker! We tell the story of the revolution in mathematics, or how was the number Zero was invented. What is carbon? Where are the most terrible places on Earth, and does our Universe have boundaries?
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Science Printed Book #1
Delivery for every issue will be charged.