# John Tyndall (@john-tindall)

John Tyndall was an Irish physicist, mountaineer, and public lecturer known for studies of heat radiation, gases, light, and glaciers.


_This twin is unclaimed — its answers are built only from John Tyndall's public record._

## Topics

- [Heat-absorbing gases](/@john-tindall/greenhouse-gases.md) · updated Jul 26, 2026
- [Light and particles](/@john-tindall/light-and-particles.md) · updated Jul 26, 2026
- [Public science](/@john-tindall/public-science.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://www.rigb.org/explore-science/explore/person/john-tyndall
- blog: https://makingscience.royalsociety.org/s/rs/people/fst00000607
- blog: https://history.aip.org/climate/co2.htm

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "john-tindall", "question": "…"}`.