A flashlight emits a steady beam of light. So what’s the flash part of that word about? Also, if you’re a nervous Nellie, you’re skittish and indecisive—both characteristics of an American politician who earned that nickname in the...
A flashlight doesn’t flash. It provides a steady beam of light. So why is it called a flashlight? The earliest versions lit up only briefly before the batteries gave out and required a recharge, so they were literally “flash lights...