Electric Telegraphy Lecture Notes

These flashcards cover key terms and concepts related to the historical development of electric telegraphy and its impact on science and technology.

Electric Telegraphy

A system for transmitting messages from a distance along a wire by making and breaking an electrical connection.

Retardation

Delay in the propagation of an electromagnetic signal's effect over a distance, also known as signal propagation delay.

The Natural Philosopher as Technologist

Refers to the role of scientists like Lord Kelvin in applying scientific principles to technological innovations.

Mirror Galvanometer

An invention by Thomson used for receiving telegraphic signals.

Transatlantic Telegraph Cable

A submarine communication cable laid across the Atlantic Ocean for telecommunication.

Induction Coil

An electrical device that transforms direct current into high-voltage pulses, used in the context of telegraphy.

Lord Kelvin

The title conferred upon William Thomson for his contributions to physics and engineering, particularly in telegraphy.

James Clerk Maxwell

A physicist known for his contributions to the field of theoretical physics and electromagnetic theory.

Applied Science

The application of scientific knowledge to practical problems, notably seen in the development of telegraphy.

E.O. Wildman Whitehouse

The chief electrician of the first transatlantic telegraph cable project, representing practical engineering.