Usually regarded as a healthy option by workers popping out of the office for lunch, many salads sold on British high streets have potentially harmful levels of salt, research has shown.
The wheel would need to withstand immense and constantly changing stresses as it rotated, so to make the structure more robust, the steel sections were bolted rather than welded together.
I attribute much of my success there to having learned, through the study of mathematics, and, in particular, theorems, how to analyze complicated principles.
Compared with that, the agreement reached in Pyongyang by Christopher Hill, an assistant secretary of state, is vague indeed: part of it has been reached only verbally.