Good videos, with context.

Trace a mechanism and then its consequences

Chemistry videos

Chemistry connects molecular changes with effects that may emerge far from the laboratory. Begin with an explanation of combustion, or follow an industrial history in which useful chemical properties came with serious costs.

A short explanation and a longer historical case

Feynman’s fire clip is an inviting entry into asking where a material and its stored energy came from. The Midgley account shifts from an everyday reaction to the development and consequences of leaded fuel and refrigerants. Compare the scale of the questions: explaining a reaction is different from establishing exposure, environmental persistence or responsibility. A clear mechanism helps, but assessing an industrial chemical also requires evidence about how it is used and where it travels.

Choose a starting point

Questions to take into the video

The historical documentary is a secondary account, and its title compresses a complicated chain of responsibility. These selections do not provide safe laboratory procedures or chemical-handling instructions.

Explore a connected subject

Sources and selection notes

By . Updated . We compared source-video titles, available uploader descriptions and the linked archive records. The choice of starting points and viewing questions is our editorial guidance. These notes do not claim full-video viewing or independent expert review.

The complete list below preserves the October 31, 2026 snapshot and its original score order. Its labels and summaries include AI-generated source material; topic membership is broader than our selected starting points. Availability and factual claims can change. Suggest a correction.

All 56 videos in this archive topic

Browse the full snapshot after choosing your starting point.