110 - How Light Reveals Secrets

Buzz Blossom & Squeak — Be a Neighborhood Naturalist · Apr 23, 2026 · 15m

What if you could know what something is made of — without ever touching it? That's not science fiction. It's spectrometry, and it's one of the most quietly extraordinary tools in all of science. In this first episode of a short series, we explore how light carries chemical fingerprints, what a high school flame test has in common with detecting helium on the sun, and why my dad's aircraft engine has everything to do with this story.

🔑 The Oil Sample That Started It All

Military aircraft mechanics routinely send oil samples to labs to diagnose what's happening deep inside an engine — without…