The Enigma Of The Universe : 6. Non-Euclidean Geometry And Einsteinian Space

Geometry is a branch of mathematics, in which the structure of space is studied. It is a system of mathematical concepts concerning extension. The properties of point, line, plane, angle, etc. are included in it. Ancient Greek mathematician Euclid (300 B C), in his monumental work Elements, had laid down the rules and laws of geometry. This is called as 'Euclidean Geometry'. It was based on some self-evident axioms, which were regarded as universal truths.