5 Things to Know about Batman v Superman!
We've waited years to see Batman and Superman exchange blows. Is the epic superhero showdown worth the wait?
A firework display is designed to be slow and methodical, a demonstration of mankind's mastery of the science of pyrotechnics. Eventually, after a buildup of anticipation, there's a finale, where dozens of these tiny explosives go off one after the other. These light shows are always exciting and slightly hypnotizing-unless they all go off at once, in which case it's just one long explosion, as was the case with the unfortunate 2012 Fourth of July Celebration in San Diego.