Introduction to Non-Euclidean Geometry to lay the foundations of

to lay the foundations of the true science of astronomy

books on phenomena

steric strain

and under what conditions to observe the fata morgana (a complex mirage in the form of a city in the sky)

echoes the folk spirit of his native Czechoslovakia as well as American influences

Introduction to Non-Euclidean Geometry to lay the foundations ofOne of the first college level texts for elementary courses in non Euclidean geometry, this concise, readable volume is geared toward students familiar with calculus. A full treatment of the historical background explores the centuries long efforts to prove Euclid's parallel postulate and their triumphant conclusion. Numerous original exercises form an integral part of the book. Topics include hyperbolic plane geometry and hyperbolic plane