Double action may refer to:
- Double-action, a system in firearms where the trigger both cocks and releases the hammer
- Double-acting cylinder, a system in steam and internal combustion engines
- Simple expansion, a system in steam engines and their accessories where a piston has the ability to both push and pull a connecting rod
Famous quotes containing the words double and/or action:
“... the next war will be a war in which people not armies will suffer, and our boasted, hard-earned civilization will do us no good. Cannot the women rise to this great opportunity and work now, and not have the double horror, if another war comes, of losing their loved ones, and knowing that they lifted no finger when they might have worked hard?”
—Eleanor Roosevelt (1884–1962)
“In the life of the human spirit, words are action, much more so than many of us may realize who live in countries where freedom of expression is taken for granted. The leaders of totalitarian nations understand this very well. The proof is that words are precisely the action for which dissidents in those countries are being persecuted.”
—Jimmy Carter (James Earl Carter, Jr.)