What did Einstein actually mean by relativity—and why did it change our understanding of the universe?

Written for the curious general reader, William F. Hudgings’s *Introduction to Einstein* offers an accessible guide to one of the most revolutionary ideas in modern physics.

Avoiding advanced mathematics and technical jargon wherever possible, Hudgings explains the foundations of Einstein’s Special and General Theories of Relativity through everyday language and visual examples. He explores motion, velocity, time, space, gravity, and the dramatic shift away from the absolute universe described by classical Newtonian physics.

The book also places Einstein’s ideas in their historical context, including the famous 1919 solar-eclipse expeditions that measured the bending of starlight near the sun and helped bring Einstein international fame.

Originally published in 1923 as part of the Little Blue Book educational series, *Introduction to Einstein* captures the excitement of an era in which relativity was transforming both science and the public imagination.

A fascinating historical introduction to Einstein’s theories for listeners interested in physics, scientific history, and the evolution of our understanding of space and time.

This work reflects the scientific terminology and understanding of its original era.

Narrated by Tony J. Martin.