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Field Notes

Material studies, product development notes, and science-forward essays from The Calculated Chemist.

Archive 4

Focus Materials, objects, and technical gifting

Method Chemist-led editorial notes

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Featured Note · Sep 15, 2026

The Historical Practice of Alchemy: The Quest for Transformation and Enlightenment

Alchemy was more than gold-making. What alchemists were trying to do, where the practice came from, and how it fed into chemistry.

Sep 01, 2026 · Chemistry History

Friedel-Crafts, Grignard, Wittig, Diels-Alder and six more named reactions — what each one does, how it works, and where it is still used.

Aug 22, 2026 · benzene

Benzene's formula was known for forty years before anyone could explain its stability. How Kekulé's hexagonal ring resolved it — and what...

Aug 22, 2026 · atomic model

From Democritus to quantum orbitals: how each atomic model was overturned by an instrument rather than an argument — and what each one ac...

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