Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
The time between two consecutive transits of the First Point of Aries. It represents the time taken by the earth to rotate on its axis relative to the stars, and is almost four minutes shorter than the solar day because of the earth's orbital motion.
twenty-four-hour period, full day, twenty-four hours, working dayView synonyms
- ‘Over the past few sidereal days more radio signals from an as-yet-unidentified source have been detected.’
- ‘The reason that sidereal days are shorter is that while the Earth rotates on its axis, it is also moving around the Sun.’
- ‘Even the closest star to us is so far away that the sidereal day is the same, no matter what star you use to measure it.’
- ‘I understand the concepts of the sidereal day, and am happy with my intuitive notions of the Earth's rotation and movement relative to the sun and the solar system.’
- ‘These sessions were performed during two consecutive days but delayed by 4 minutes per day, since the satellite sky distribution is repeated with a period close to a sidereal day.’
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.