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  2. Rebreather diving - Wikipedia

    en.wikipedia.org/wiki/Rebreather_diving

    There are two standard methods for dumping gas from the loop when it is not full – manually opening the dump valve, and exhaling through the nose when using a half mask. Gas will also escape from the loop if the mouthpiece is removed without closing the DSV, but this can cause the loop to flood, which is a serious malfunction. [5]

  3. History of general anesthesia - Wikipedia

    en.wikipedia.org/wiki/History_of_general_anesthesia

    From the beginnings of ether and chloroform anesthesia until well into the 20th century, the standard method of administration was the drop mask. A mask was placed over the patient's mouth with some fabric in it and the volatile liquid was dropped onto the mask with the patient spontaneously breathing.

  4. Unit 731 - Wikipedia

    en.wikipedia.org/wiki/Unit_731

    Unit 731 (Japanese: 731部隊, Hepburn: Nana-san-ichi Butai), [note 1] short for Manchu Detachment 731 and also known as the Kamo Detachment [3]: 198 and the Ishii Unit, [5] was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War ...

  5. 102 Everyday Things In The USA That Leave Foreigners ... - AOL

    www.aol.com/lifestyle/102-everyday-things-usa...

    Image credits: rjyanco Medical bills in the US can be shockingly high compared to countries with universal healthcare, like Canada or the UK. In those places, most people do not have to pay for ...

  6. Nitrous oxide - Wikipedia

    en.wikipedia.org/wiki/Nitrous_oxide

    Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, nitro, nitrus or nos, [4] is a chemical compound, an oxide of nitrogen with the formula N. 2O. At room temperature, it is a colourless non-flammable gas, and has a slightly sweet scent and taste. [5]

  7. A power company is planning to restart Three Mile Island's ...

    www.aol.com/power-company-planning-restart-three...

    A power company is planning to restart a dormant nuclear reactor at Pennsylvania's Three Mile Island nuclear generating station to help meet the power demands of high-tech data centers.

  8. Spanish flu - Wikipedia

    en.wikipedia.org/wiki/Spanish_flu

    The 1918–1920 flu pandemic, also known as the Great Influenza epidemic or by the common misnomer Spanish flu, was an exceptionally deadly global influenza pandemic caused by the H1N1 subtype of the influenza A virus. The earliest documented case was March 1918 in the state of Kansas in the United States, with further cases recorded in France ...

  9. Military colours, standards and guidons - Wikipedia

    en.wikipedia.org/wiki/Military_colours...

    The traditional colour of the Eastern Finland Signals Battalion, part of the Karelia Brigade, has the branch colours of signals corps: purple and gold. The device featuring a western capercaillie is a throwback to the earlier designation as Central Finland Signals Battalion. The main device, the three lightning bolts, is symbolic of communication.

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