"Boom! Crash! Crumble! Demolition experts bring down a massive building within its own footprint; the hood of a car crumples in a crash, exactly as planned; and a wave of molasses covers a city in sticky goo. What is going on? From quick answers to in-depth explanations, we've got you covered. Discover all about the mighty -- and mightily controlled -- explosions responsible for demo'ing old buildings, producing awesome fireworks, and more. Dig into...