The supercharged facts about energy and waves can set your brain buzzing! You learn about huge rates of consumption (like the 35.3 quadrillion BTUs of petroleum used in the United States in 2011), huge timelines (it took 300 million years for our greatest source of energy, fossil fuels, to be created), and even huger mysteries (how long it will be before fossil fuels run out).How can all these big numbers and concepts make more sense? Infographics! The charts, maps, and illustrations in this book tell a visual story to help you better understand key concepts about energy and waves. Crack open this book to explore mind-boggling questions such as: • What is "the grid" and how does it work? • How does sound travel? • How can dancing create energy? The answers are sure to be shocking!