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  2. Self-contained breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Self-contained_breathing...

    The endurance of the cylinder can be calculated from the volume, pressure and breathing rate of the user. The formula: volume (in liters) × pressure (in bars) / 40 (litres per minute) - 10 minutes (the 10 minutes is a safety margin, or reserve), so a 6-liter cylinder, of 300 bar, is 6 × 300 / 40 - 10 = 35 minutes working duration.

  3. Guide book - Wikipedia

    en.wikipedia.org/wiki/Guide_book

    Guide book. A guide book or travel guide is "a book of information about a place designed for the use of visitors or tourists". [1] It will usually include information about sights, accommodation, restaurants, transportation, and activities. Maps of varying detail and historical and cultural information are often included.

  4. Book - Wikipedia

    en.wikipedia.org/wiki/Book

    v. t. e. A book is a medium for recording information in the form of writing or images. Books are typically composed of many pages, bound together and protected by a cover. [1] Modern bound books were preceded by many other written mediums, such as the codex and the scroll.

  5. Owner's manual - Wikipedia

    en.wikipedia.org/wiki/Owner's_manual

    Owner's manual. An owner's manual (also called an instruction manual or a user guide) is an instructional book or booklet that is supplied with almost all technologically advanced consumer products such as vehicles, home appliances and computer peripherals . Information contained in the owner's manual typically includes:

  6. AOL Mail

    mail.aol.com

    AOL Mail is free and helps keep you safe. From security to personalization, AOL Mail helps manage your digital life Start for free

  7. User guide - Wikipedia

    en.wikipedia.org/wiki/User_guide

    A user guide, also commonly known as a user manual, is intended to assist users in using a particular product, service or application. It's usually written by a technician, product developer, or a company's customer service staff. Most user guides contain both a written guide and associated images. In the case of computer applications, it is ...

  8. The sneaky, smart reasons malls have no windows - AOL

    www.aol.com/sneaky-smart-reasons-malls-no...

    The structure of the traditional mall was either a T-shape, or a cross shape with the four anchor stores on either sides, Stephanie Cegielski, vice president of research with the International ...

  9. Etsy’s CEO says the human touch gives the e-commerce ... - AOL

    www.aol.com/finance/etsy-ceo-says-human-touch...

    That gives the platform a sense of purpose summed up by its brief mission statement: Keep commerce human. “Behind every item you buy on Etsy is a real person with a real human touch ...