Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A basic postulate of general relativity, stating that at any point of space–time the effects of a gravitational field cannot be experimentally distinguished from those due to an accelerated frame of reference.
- ‘For instance, the equivalence principle one of the cornerstones of relativity states that in freely falling reference frames, the outcome of any non-gravitational experiment is independent of when and where it is carried out.’
- ‘Reasonable time limits had on several occasions been held by the Court to be compatible with the effectiveness principle, whereas the exact meaning of the equivalence principle remained unclear.’
- ‘Both findings - about the strong equivalence principle and the gravitational constant - boost Einstein's theory,’ added Turyshev.’
- ‘Now remember the case of the spring and the equivalence principle.’
- ‘Indeed, massless moduli would probably lead to long-range forces that would compete with gravity and violate the equivalence principle - the cornerstone of general relativity - at an observable level.’
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.