I told them what we needed was a gut check to see whether we had the stomach to go ahead.

Semipositive molds are more expensive to manufacture and maintain than the other types, but they are much better from an applications point of view.

Ever since I was young, whenever something involving arithmetic came along, friends and even grown-ups would say, Oh just give the math to Mary. Before long, my nickname had become Ms. Mary Math. And today, I'm the go-to wiz for mind-boggling math questions.

The ironbark, splendid timber in itself, was almost hopeless as a material for hand-sawing.