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  2. Optical disc packaging - Wikipedia

    en.wikipedia.org/wiki/Optical_disc_packaging

    A 6-panel digipak. A digipak or digipack (generic term) [citation needed] is a rectangular cardboard package with one or more plastic trays capable of holding a disc attached to the inside. There are variations where the disc(s) sit on a hub or spindle inside and come in various sizes. A digipak-style case is a common alternative to the jewel ...

  3. Time-delay combination locks - Wikipedia

    en.wikipedia.org/wiki/Time-delay_combination_locks

    A time-delay combination lock is most commonly a digital, electronic combination lock equipped with a delay timer that delays the unlocking of the lock by a user-definable delay period, usually less than one hour. Unlike the time lock, which unlocks at a preset time (as in the case of a bank vault), time-delay locks operate each time the safe ...

  4. Jewel box - Wikipedia

    en.wikipedia.org/wiki/Jewel_box

    Jewel case, Jewel box or Super Jewel Box, types of Optical disc packaging Tomb of I'timād-ud-Daulah , at Agra is known as Jewel Box for its intricate parchin kari work Topics referred to by the same term

  5. Pocket watch - Wikipedia

    en.wikipedia.org/wiki/Pocket_watch

    A hunter-case pocket watch is a case with a spring-hinged circular metal lid or cover, that closes over the watch-dial and crystal, protecting them from dust, scratches and other damage or debris. The name originated from England where "fox hunting men found it convenient to be able to open their watch and read the time with one hand, while ...

  6. Timer - Wikipedia

    en.wikipedia.org/wiki/Timer

    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.

  7. Photo-lab timer - Wikipedia

    en.wikipedia.org/wiki/Photo-lab_timer

    The selectable time range is typically from 1/10th of a second to one or more minutes. Most exposure timers also have a continuous light switch, which is especially helpful for framing and focusing. Depending on the version, the desired duty cycle is set by means of a mechanical dial with scale or a push-button arrangement along with a ...

  8. Binary clock - Wikipedia

    en.wikipedia.org/wiki/Binary_clock

    Time Technology's Samui Moon binary-coded sexagesimal wristwatch. This clock reads 3:25. Binary clocks that display time in binary-coded sexagesimal also exist. Instead of representing each digit of traditional sexagesimal time with one binary number, each component of traditional sexagesimal time is represented with one binary number, that is, using up to 6 bits instead of only 4.

  9. Stopwatch - Wikipedia

    en.wikipedia.org/wiki/Stopwatch

    Some may have a connector for external sensors, allowing the stopwatch to be triggered by external events, thus measuring elapsed time far more accurately than is possible by pressing the buttons with one's finger. The first digital timer used in organized sports was the Digitimer, developed by Cox Electronic Systems, Inc. of Salt Lake City ...