In today's episode, Zack has 30 minutes to become an "expert" on... Fireworks! How did we come up with this idea? Oh, maybe because they've been going off non-stop for the past week! As we learned, fireworks have been a part of celebrating our country's independence since the first anniversary of the singing of the Declaration of Independence, which is pretty cool. Makes those 2am explosions have some significance, you know? If you've ever wondered how on earth fireworks work, this one's for you. We learned where the colors come from, where the shapes come from, how they get up there in the sky in the first place, etc. Now, we are truly experts. And, we got a nice history lesson along with it. Travel to ancient China with us, learn about the beginning of gunpowder and the beautiful pyrotechnic displays that have come from it.  Highlights Include: - Exploding Bamboo! - "Cross-section" of a firework - Biggest ever Fireworks show? Philippines, 2016 Follow on instagram @30minuteexpertpodcast and twitter @30minexpertpod Send us your expertise at [email protected] And please rate and review! Podcast artwork by Rick Radvansky Music by Jake Radvansky