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Field Notes

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

Archive 5

Focus Materials, objects, and technical gifting

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Featured Note · Nov 03, 2026

How Metal–Organic Frameworks Pull Water From Dry Air

MOFs capture water on internal surfaces and release it for collection. The chemistry is remarkable; the device still has an energy and engineering budget.

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Recent Notes

Nov 03, 2026 · Chemistry

An Ancient Machine, One Molecule Wide: Archimedes’ Screw at the Nanoscale

A helical molecule links electric current and rotation. Here is what the experiment shows—and why it is more interesting than a tiny wate...

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Aug 22, 2026 · chemistry

Laboratory Chemical Suppliers: How to Choose One

Which supplier is right depends less on the catalogue than on grade requirements, documentation, lead times, and how your institution pay...

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Aug 22, 2026 · benzene

The Aromatic Revolution: Kekulé's Benzene Breakthrough

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

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Aug 22, 2026 · atomic model

The Historical Development of the 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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