About How It Works Book of Did You Know?Did you know that there are caves in Mexico with that host the world’s largest crystals and that the elements that make up our bodies were forged inside ancient stars? Find out the hows and whys for how vinyl records were made and why Oliver Cromwell melted the Crown Jewels. Featuring: Science & Environment - Discover the truth behind science's biggest wonders Transport & Technology - Climb walls like Spider-Man and 3D print a car Space - Explore the outer reaches of our universe History - Step back in time and discover the past
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