In the Ryder Cup what matters is which side can, over three long days, display its skills under pressure of almost intolerable intensity.

ECONOMIST: Guts, not ground advantage, won it for Europe

Spreading the area of air pressure over the jet staggers the sound waves and decreases the intensity of the boom.

CNN: Bang goes the sonic boom

However, some people with acute pericarditis describe their chest pain as dull, achy or pressure-like instead, and of varying intensity.

CNN: Pericarditis

Obviously Thad Allen discussed the pressure test for the well and getting a sense and judging the intensity of the wellbore through pressurization, right?

WHITEHOUSE: Press Briefing

High pressure slowly built in the west through the afternoon, helping to reduce the intensity of the showers.

BBC: Raindrops on a window pane

And that's all they can do, they've got to really go up there with a lot of fight and intensity and, as you say, try and put the South Africans under pressure.

BBC: Breakfast with Frost