This book throws open the doors and welcomes you into their amazing world. From gravity to the theory of relativity, this unique book provides visual interpretations of complex concepts, designed to make learning physics easier and a whole lot more fun!

    He returned with stories of exotic people, tremendous riches, and the most powerful ruler in the world – Kublai Khan. The explorer told of inventions ranging from gunpowder to paper money. The intellectual ferment and cultural diversity he described helped move Europe out of the Dark Ages and into the Renaissance. In his lifetime, people scoffed at his stories. But as this book explains, he changed the world.