Uploaded July 2026 | Updated September 2026, 3 weeks ago

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Professor Julius Sumner Miller delights with his digressions in this 1971 episode of ABC’s classic science show, Why Is It So? Stream more documentaries now on ABC iview: Science Documentaries

Chapters:
0:00 Intro
1:50 Ball and Ring Experiment Explained
3:26 Thermal Expansion Demonstration
4:30 Steel Plate Experiment
7:36 Blaise Pascal’s Discovery
8:29 Professor Miller’s Question To The Viewer

This episode of Why Is It So? was first broadcast in 1971 by the Australian Broadcasting Corporation.

Note: Captions are auto-generated
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