Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A curve between two points along which a body can move under gravity in a shorter time than for any other curve.
- ‘The brachistochrone is a cycloid, but that cycloid is not the only curve satisfying the equation.’
- ‘The brachistochrone problem was one of the earliest problems posed in the calculus of variations.’
- ‘An inverted cycloid is the brachistochrone, that is the curve between two points in a vertical plane, along which a bead needs the shortest time to travel.’
- ‘Here one can see a graph of the brachistochrone for the given endpoint.’
- ‘Further enhancements will guide the user through the development of brachistochrones for force fields which differ from gravitational force fields.’
Late 18th century: from Greek brakhistos shortest + khronos time.
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.