n DuPont chemist Roy Plunkett discovered Teflon by accident in 1938, while trying to develop a new type of refrigerant.

n High-fiber fettuccine: U.S. sales of whole-wheat pasta have tripled since 2001. Experts say that this is due to both an increase in consumer demand and improved taste, two not-exactly-independent factors.

The advertising slogan, “Your world. Delivered,” is currently being used by a:

A) Telephone company

B) Travel Web site

C) Cable network

D) Overnight shipping service

Thursday’s answer: The surname of Supreme Court Justice David Souter is the Scottish word for “shoemaker.”