Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
The SI unit of solid angle, equal to the angle at the centre of a sphere subtended by a part of the surface equal in area to the square of the radius.
- ‘The solid angle in question is only p / 4 steradian, one-sixteenth of the entire sky.’
- ‘There are also two supplementary units, the radian, and the steradian.’
- ‘This is the power of the light that is emitted per projected surface area into a given solid angle, and it is measured in watts per square metre per steradian.’
- ‘A sphere subtends 4 pi square radians (steradians) about the origin.’
Late 19th century: from Greek stereos solid + radian.
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.