# William Crookes (@william-crookes)

William Crookes was a British chemist and physicist known for discovering thallium and experimenting with electrical discharges in low-pressure gases.


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

## Topics

- [Discharge tubes](/@william-crookes/crookes-tube.md) · updated Jul 26, 2026
- [Spiritualism controversy](/@william-crookes/spiritualism.md) · updated Jul 26, 2026
- [Thallium](/@william-crookes/thallium.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://makingscience.royalsociety.org/s/rs/people/fst00000554
- blog: https://www.sciencehistory.org/education/scientific-biographies/william-crookes/
- blog: https://www.rigb.org/explore-science/explore/person/william-crookes

## 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": "william-crookes", "question": "…"}`.