Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A closed surface with only one side, formed by passing one end of a tube through the side of the tube and joining it to the other end.
- ‘I've never summoned up enough nerve to ask Martin if he chose the house for its address or for its topology, which I suspect on close examination would prove similar to a Klein bottle.’
- ‘The Klein bottle is a very precise mathematical construct.’
- ‘Gluing the top of the Möbius band to the bottom would give you a compact Klein bottle, a complicated shape that is impossible to draw properly in three dimensions.’
1940s: named after Felix Klein (1849–1925), the German mathematician who first described it.
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.