![](https://coimages.sciencemuseumgroup.org.uk/42/398/large_thumbnail_1978_0334__0002_.jpg)
Hatfield-Turner heat flow disc
- Made:
- 1948-1958
![Hatfield-Turner heat flow disc (a tellurium-silver disc with](https://coimages.sciencemuseumgroup.org.uk/387/454/medium_smg00086774.jpg)
Hatfield-Turner heat flow disc (a tellurium-silver disc with copper gauze on each side, designed for measuring heat flow through a surface), 1948-1958
Hatfield-Turner heat flow disc (a tellurium-silver disc with copper gauze on each side, designed for measuring heat flow through a surface), 1948-1958