The front and patio doors are bugged. When you open one a contact breaks and off goes the clanger.

He teetered on the brink of the precipice.

Today Transportation Secretary Samuel Skinner, from Illinois, has the challenging task of selling a taxaphobic nation on the rationality of spending much more on infrastructure.

This program illustrates the Whitney-Graustein theorem, that two closed curves (immersions of the circle) in the plane can be deformed into one another without letting go of the immersion property if and only if their turning numbers are the same.