Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A synthetic composite material with a structure such that it exhibits properties not usually found in natural materials, especially a negative refractive index.‘the team began making these metamaterials and demonstrated several that scattered electromagnetic waves unlike any known materials’
- ‘Left-handed materials - such as this "metamaterial" for microwaves - are reported to bend light in the opposite direction from normal materials, a property that might lead to a "perfect" lens.’
- ‘So far researchers have only developed metamaterials that divert radar and microwaves - rather than light waves, which are the key to invisibility.’
- ‘But the negative-index metamaterials that have been demonstrated are far more dispersive than typical materials.’
- ‘Such a small index does not mean the speed of light exceeds that of a vacuum: this rule of thumb breaks down in metamaterials.’
- ‘The team used two different wedge samples so that waves would be incident on the metamaterial at two different angles.’
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.