How many times have you heard the question asked, "Is that really a confined space?" This is asked a lot more than you might think. To truly understand what a confined space is, let's start with ...

Contrary to Brewster Thackeray's assertion [Free for All, Oct. 23], The Post's use of the phrase "confined to a wheelchair" to describe architect Oscar Niemeyer was neither odd nor misleading.

Squeezed light: artist's impression of how light is confined between graphene (bottom) and gold bars (top). (Courtesy: Fabien Vialla) Light has been confined to a gap just one atom wide by an ...