Journal

Sep 15, 2026 · chemistry history

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 · Instrumentation

Thermocouple types J, K, T, S and N compared — temperature ranges, probe diameters, connectors, resolution, and how to match a sensor to ...

Sep 01, 2026 · STEM Careers

Certifications and courses worth the time for STEM professionals — data science, cloud, cybersecurity and Six Sigma credentials, plus the...

Sep 01, 2026 · Green Chemistry

Twenty safer solvent choices for the research lab — what each is good for, where it genuinely reduces risk, and which "green" candidates ...

Sep 01, 2026 · Science Events

Ten conferences worth the travel budget — from ACS and AAAS to SfN, the IAU General Assembly and the World Science Festival — and what ea...

Sep 01, 2026 · Lab Safety

Pyrophorics, aryl amines, halogenated solvents and pressurised reactions — the real hazards of bench chemistry, two incidents that change...

Sep 01, 2026 · Lab Practice

How to choose a reaction solvent: solubility, workup and purification, spectroscopic interference, boiling point versus reaction temperat...

Sep 01, 2026 · Lab Safety

Twenty hazardous reagents common in research laboratories — why each is dangerous, what safer substitutes exist, and the PPE and handling...

Field Notes