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  2. 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]

  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. 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.

  6. Barotrauma - Wikipedia

    en.wikipedia.org/wiki/Barotrauma

    Barotrauma is physical damage to body tissues caused by a difference in pressure between a gas space inside, or in contact with, the body and the surrounding gas or liquid. [1] [2] The initial damage is usually due to over-stretching the tissues in tension or shear, either directly by an expansion of the gas in the closed space or by pressure difference hydrostatically transmitted through the ...

  7. 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]

  8. List of gases - Wikipedia

    en.wikipedia.org/wiki/List_of_gases

    This list is sorted by boiling point of gases in ascending order, but can be sorted on different values. "sub" and "triple" refer to the sublimation point and the triple point, which are given in the case of a substance that sublimes at 1 atm; "dec" refers to decomposition. "~" means approximately.

  9. Fentanyl - Wikipedia

    en.wikipedia.org/wiki/Fentanyl

    Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic.It is 20 to 40 times more potent than heroin and 100 times more potent than morphine; [9] its primary clinical utility is in pain management for cancer patients and those recovering from painful surgeries.

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