Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
Denying or going beyond Euclidean principles in geometry, especially in contravening the postulate that only one line through a given point can be parallel to a given line.
- ‘Beltrami in this 1868 paper did not set out to prove the consistency of non-Euclidean geometry or the independence of the Euclidean parallel postulate.’
- ‘A modern realist would say that what mathematicians hadn't realised is that, as well as Euclidean geometry, there also exists non-Euclidean geometry.’
- ‘In 1915, Albert Einstein found it more convenient, the conventionalist would say, to develop his theory of general relativity using non-Euclidean rather than Euclidean geometry.’
- ‘By chapter two he is proving Pythagoras' theorem from first principles and introducing non-Euclidean geometry.’
- ‘It can be shown that if Euclidean geometry is internally consistent, then the alternative non-Euclidean geometries are consistent as well.’
Are you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.