Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A figure formed by the intersection of a plane and a right circular cone. Depending on the angle of the plane with respect to the cone, a conic section may be a circle, an ellipse, a parabola, or a hyperbola.
- ‘He worked on conic sections and produced important theorems in projective geometry.’
- ‘He continued his study of mathematics and wrote a dissertation on conic sections for his doctorate in mathematics which was awarded in 1879.’
- ‘These three trajectories are known as conic sections, as they are also the curves produced by cutting a cone along different planes.’
- ‘For example he shows how to deform a circle into an ellipse and proves other results on deforming conic sections.’
- ‘The solutions to the equations describing the motions produced by this law are called conic sections - ellipses, hyperbolae and parabolae - which you get by intersecting a plane and a cone.’
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.