Initial coincidence addition: To our list of films having stars with the same initials, we add the recent discovery “They Knew What They Wanted,” a 1942 comedy whose two leads were Carole Lombard and Charles Laughton. That film marked the debut of actor Karl Malden.

All the electrical units of measure listed below are named for eminent physicists or inventors. But which of these is a shortened form of the honoree’s last name, rather than the full name?

A) Ampere

B) Watt

C) Volt

D) Ohm

Wednesday’s answer: According to its label, the principal ingredient of zero-calorie Sweet’N Low sweetener is “nutritive dextrose,” a highfalutin synonym for “sugar.” (Can anyone explain to us how a substance that is mostly sugar can have no calories?)