About this episode

A calm bedtime episode exploring the science behind fireworks and their colors.

A calm bedtime episode about fireworks, paced gently to help a child fall asleep. Tonight's episode sits on a hill at the edge of a summer field, far back from the crowd, watching the sky bloom with light. Fireworks aren't just pretty. They're chemistry. The reds, greens, golds, and blues come from tiny bits of metal and mineral tucked into each shell. Strontium glows red. Barium glows green. Sodium, the same mineral in the salt on your dinner table, glows a warm buttery gold. Blue is the hardest color of all to make. The episode also notices something a kid has felt their whole life without naming: the light of a firework reaches your eyes before the boom reaches your ears. Every clap, every voice, every closing door works the same way. Your eyes are always a little ahead of your ears. Along the way: how firework builders design a peony or a willow before the shell ever leaves the ground, why blue took years to figure out, and how to count the seconds between a flash and a boom to tell how far away it was. The Bedtime Scientist is a calm, factual science show for kids and families. Think Mr. Rogers meets Carl Sagan for bedtime. One voice. Real science. No music, no effects, no…

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