Worlds Out of Nothing pp 313-323 | Cite as

# What is Geometry? The Physical Side

Chapter

## Abstract

Although we shall not discuss the point in any detail, you might ask if non-Euclidean geometry passes or fails this test: can there be a mechanics in such a space? Can one set up such things as an inverse square law of gravity, or conservation of energy and momentum? Could one recover, doubtless in an altered form, everything that physicists had discovered about Euclidean space if it turned out that space obeyed non-Euclidean geometry? The answer is, as you might suspect, yes, and this was shown by Lipschitz, a follower of Riemann, in the 1870s.

## Keywords

Euclidean Geometry Special Theory Circular Disc Physical Side Marble Slab
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## Copyright information

© Springer-Verlag London Limited 2007