Discover the secret science behind the coolest inventions. "How Cool is This?" is an exciting introduction to inventions and technology. It's packed with delights such as glow sticks and exploding bubbles, modern mysteries like e-ink and wind turbines and familiar objects from crash helmets to fireworks. You'll discover something fascinating while seeing familiar objects in a new light through cutting-edge 3D xrays and high-speed photography. If you're a future inventor, this is the perfect book for you.