Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A type of catadioptric telescope having a deeply curved meniscus lens. A secondary mirror on the back of the lens brings the light to a focus just behind a hole in the primary mirror.
- ‘The Maksutov telescope is similar to the Schmidt design, but uses a more spherical corrector lens.’
- ‘We were producing a line of Maksutov telescopes ranging from 6’ to 10’ diameter and continue to work on special optics for professional observatories.’
- ‘Back then they were simply known as Russian Maksutov telescopes, there were no manufacturer's names on them.’
- ‘This image of Mars is the size it appears through a 6mm orthoscopic eyepiece on the 7’ Maksutov telescope.’
- ‘Before the ETX, Maksutov telescopes were elevated to an almost mythic status.’
Mid 20th century: named after Dmitri D. Maksutov (1896–1964), Soviet astronomer.
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.