Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A curve (resembling a series of arches) traced by a point on a circle being rolled along a straight line.
- ‘To estimate the relative surface area of basal lamina and apertures, we used a line intercept technique with cycloids.’
- ‘Neile's parabola was the first algebraic curve to have its arc length calculated; only the arc lengths of transcendental curves such as the cycloid and the logarithmic spiral had been calculated before this.’
- ‘He defines evolutes and involutes of curves and, after giving some elementary properties, finds the evolutes of the cycloid and of the parabola.’
- ‘Viviani determined the tangent to the cycloid but he was not the first to succeed in this.’
- ‘Many famous mathematicians, including Descartes, have worked on a class of curves called cycloids.’
Mid 17th century: from Greek kukloeidēs ‘circular’, from kuklos ‘circle’.
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.