A documentary feature explaining the principles of Schlieren photography, which makes any phenomenon that changes the refractive index of transparent substances visible.
| Release Date | January 1, 1958 | |
|---|---|---|
| Status | Released | |
| Original Title | Schlieren | |
| Runtime | 15min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Shell Film Unit | |