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  2. 8 white noise machines for better sleep - AOL

    www.aol.com/news/8-white-noise-machines-better...

    The “sleep therapy” options play your favorite nature sound for 15 or 30 minutes before switching to white noise. “I often have trouble falling asleep, and using this as I went to bed ...

  3. Pencil detonator - Wikipedia

    en.wikipedia.org/wiki/Pencil_detonator

    It does not fizz or make any other noise. However, unlike clockwork timers, pencil detonators only give approximate time delays. For example, a 2-hour pencil detonator might be accurate to plus or minus 5 minutes, whereas the version offering a 6-hour delay could have a precision of plus or minus 15 minutes.

  4. 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.

  5. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    The hi-lo signal is rarely used since during emergencies, they sound a continuous tone for 8 minutes and in all clear, they sound a long wail, consisting of 30 seconds startup and alert and a 30-second wind-down 3 times. Test schedule is the third Thursday of every month at 1PM with the all-clear.

  6. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    Sound sample ⓘ An 1860s-era siren. [2] A siren is a loud noise-making device. There are two general types: mechanical and electronic. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks.

  7. 13 free workouts you can do at home in just 15 minutes - AOL

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    4. 13-Minute Cycle and Strength Workout. Dust off that spin bike and get ready to work your upper and lower body with this quick 13-minute workout from Barry’s.. 5. PuzzleFit 15-Minute Quick ...

  8. Clock - Wikipedia

    en.wikipedia.org/wiki/Clock

    An analog pendulum clock made around 18th century. A clock or chronometer is a device that measures and displays time.The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month, and the year.

  9. Litter-Robot 4 vs. Litter-Robot 3 - AOL

    www.aol.com/cat-lady-honest-review-whisker...

    Set-Up Is a Cinch. The quick-start guide was all I needed to get the Litter-Robot 4 up and running in about ten minutes. (Huge tip: Plug the adapter into the back of the machine before positioning ...