Search results
Results From The WOW.Com Content Network
The outdoor sirens are tested four times a year on the first non-holiday Monday of March, June, September, and December at 15:00 local time. The test consists of the general alarm for 2 minutes, followed by a 90-second gap before the "all clear" is sounded. There are usually around 15 to 20 general alarms, occurring locally, per year.
A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.
Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.
An aircraft identified as enemy, in accordance with theater ID criteria. The term does not necessarily imply direction or authority to engage. Banzai Information/directive to execute launch and decide tactics. Base (number) Reference number used to indicate such information as headings, altitude, and fuels. Bassett Rocket-thrown ASW torpedo ...
When activating for a lack of motion, the PASS device will typically emit a few seconds of a muted warning that activation is about to occur, [1] so that a firefighter who has simply been motionless for a time but is otherwise safe will be able to move slightly and thus reset the activation timer before a false activation occurs.
The sheer power of nuclear weapons and the perceived likelihood of such an attack on the United States precipitated a greater response than had yet been required of civil defense. Civil defense, something previously considered an important and common-sense step, also became divisive and controversial in the charged atmosphere of the Cold War .
In 1972, Signetics originally released the 555 timer in DIP-8 and TO5-8 metal can packages, and the 556 timer was released in a DIP-14 package. [ 4 ] In 2006, the dual 556 timer was available in through-hole packages as DIP-14 (2.54 mm pitch), [ 21 ] and surface-mount packages as SO-14 (1.27 mm pitch) and SSOP-14 (0.65 mm pitch).
Some watchdog timers allow the time interval to be programmed by selecting from among a few selectable, discrete values. In others, the interval can be programmed to arbitrary values. Typically, watchdog time intervals range from ten milliseconds to a minute or more. In a multistage watchdog, each timer may have its own, unique time interval.