On Radiant Matter (Classic Reprint): A Lecture Delivered to the British Association for the Advancement of Science, at Sheffield, Friday, August 22, ... Friday, August 22, 1879 (Classic Reprint) - Softcover

Inhaltsangabe

Discover how a famous experiment probes matter at extreme emptiness and reveals a fourth state of matter. This edition guides you through ideas that connect early gas theory to dramatic visible effects, from luminous phosphorescence to focused heat and motion.

In the lecture, the author explains how gases under very low pressure behave differently, allowing molecules to move largely without collisions. He introduces Radiant Matter as a distinct state and shows how it can illuminate, cast shadows, and even move light objects. The demonstrations range from glowing glass and minerals to vivid focal heating, all driven by a highly exhausted gas environment.

- See how the mean free path of molecules changes with pressure and why that matters for observing new phenomena.
- Learn how Radiant Matter excites phosphorescence in glass and other substances, and which materials respond most vividly.
- Explore how shadows, focal lines, and mechanical effects reveal the power of molecular streams.
- Understand how heat and chemical interactions emerge in high vacuum during these experiments.

Ideal for readers curious about the origins of modern ideas on matter, vacuum physics, and early radiometric demonstrations from the 19th century edition.

Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.