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  2. Hydrogen safety - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_safety

    The Hindenburg disaster is an example of a large hydrogen explosion. Hydrogen safety covers the safe production, handling and use of hydrogen, particularly hydrogen gas fuel and liquid hydrogen. Hydrogen possesses the NFPA 704's highest rating of four on the flammability scale because it is flammable when mixed even in small amounts with ...

  3. Water hammer - Wikipedia

    en.wikipedia.org/wiki/Water_hammer

    To keep water hammer low, pipe-sizing charts for some applications recommend flow velocity at or below 1.5 m/s (4.9 ft/s). Fit slowly closing valves. Toilet fill valves are available in a quiet fill type that closes quietly. Non-slam check valves do not rely on fluid flow to close and will do so before the water flow reaches significant velocity.

  4. Fukushima nuclear accident (Unit 3 Reactor) - Wikipedia

    en.wikipedia.org/wiki/Fukushima_nuclear_accident...

    The video appears to show large amounts of debris contaminating the pool. Based on water samples analysed, unnamed experts and TEPCO reported that the fuel rods were left "largely undamaged", [51] [52] and that it appears that the Unit 3 explosion was entirely related to hydrogen buildup within the building from venting of the reactor.

  5. Gas explosion - Wikipedia

    en.wikipedia.org/wiki/Gas_explosion

    A balloon filled with gaseous hydrogen exploding.. A gas explosion is the ignition of a mixture of air and flammable gas, typically from a gas leak. [1] In household accidents, the principal explosive gases are those used for heating or cooking purposes such as natural gas, methane, propane, butane.

  6. Flashback arrestor - Wikipedia

    en.wikipedia.org/wiki/Flashback_arrestor

    Further gas flow in the case of pressure shocks. The entry of air or oxygen into the distribution line or single cylinders. Flashbacks which are the rapid propagation of a flame down the hose. Further gas flow in the event of a burnback. According to the standard DIN EN ISO 5175-1 (formerly EN 730-1) they include a minimum of two safety elements:

  7. Man Kills Ex-Fiancée After She Gives Him Engagement ... - AOL

    www.aol.com/lifestyle/man-kills-ex-fianc-e...

    A Florida man allegedly shot his ex-fiancée in the head after she called off their engagement. Timothy Hyder, 57, then allegedly asked the victim's daughter to call 911.

  8. Fukushima nuclear accident (Unit 1 Reactor) - Wikipedia

    en.wikipedia.org/wiki/Fukushima_nuclear_accident...

    Large filtration systems are used to clean the water of its radioactive contaminants, but cannot remove tritium, a radioactive isotope of hydrogen (Hydrogen-3) bonded into water molecules (tritiated water). In 2016, only 14 grams of tritium in total was estimated to be contained in 800,000 cubic meters of contaminated water stored on site. [108]

  9. The 3 Most Overpriced Cities in America, According to Gen Z ...

    www.aol.com/3-most-overpriced-cities-america...

    Affordability is becoming a growing challenge for younger generations. Although they're often drawn to vibrant cities for their career opportunities and lifestyle perks, high housing costs make ...

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