How do smoke alarms detect smoke? (part 1)

#158 Rebroadcast Gemstones come in all sorts of colors, but how do they get them? Are different stones super different at the molecular level? How do these different colors happen naturally? And how can those colors be replicated in lab-made gemstones? Let's get into it. Referenc ...  Show more

Why does a pencil work so perfectly? Why does graphite leave marks on paper instead of just crumbling apart? And what do pancakes, honeycombs, geckos, and intermolecular forces have to do with any of it? This week we follow a simple pencil all the way down to carbon atoms, graphe ...  Show more

Is it just Ben or are fluxes of influencers getting into the art of cigarette smoking? Using @bestdressed as a case study, Ben breaks down the resurgence of the glamourization of smoking in online spaces and highlights the dangers of smoking while having a captive and impressiona ...  Show more

What is chemistry? Neil deGrasse Tyson and comedian Chuck Nice take fan questions on exothermic reactions, PFAS, ice cream, sugar, fire, and more with Kate Biberdorf, aka Kate the Chemist.

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The Space Ne ...  Show more

As we are under a week away from testing, all the liveries are out so what do we think of them. The evolution of the car launching videos and spectacles, favorite bromances on the grid and more.