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  2. Construction of electronic cigarettes - Wikipedia

    en.wikipedia.org/wiki/Construction_of_electronic...

    The tank can be either plastic, glass, or metal. [90] One form of tank atomizers was the Genesis style atomizers. [93] They can use ceramic wicks, stainless steel mesh or rope for wicking material. [93] The steel wick must be oxidized to prevent arcing of the coil. [93] Another type is the Sub ohm tank. [94] These tanks have rebuildable or RBA ...

  3. Electronic cigarette - Wikipedia

    en.wikipedia.org/wiki/Electronic_cigarette

    The fourth-generation includes sub-ohm tanks (meaning they have electrical resistance of less than 1 ohm) and temperature control. [29] There are also pod mod devices that use protonated nicotine, rather than free-base nicotine found in earlier generations, [30] providing higher nicotine yields. [31] [32]

  4. Cloud-chasing - Wikipedia

    en.wikipedia.org/wiki/Cloud-chasing

    The majority of vapers go for sub ohm tanks or rebuildable atomizers for producing more vapor. [citation needed] As vaping comes under increased scrutiny, some members of the vaping community have voiced their concerns about cloud-chasing, claiming the practice gives vapers a bad reputation when doing it in public. [18]

  5. High-voltage direct current - Wikipedia

    en.wikipedia.org/wiki/High-voltage_direct_current

    Long distance HVDC lines carrying hydroelectricity from Canada's Nelson River to this converter station where it is converted to AC for use in southern Manitoba's grid. A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. [1]

  6. Reactive armour - Wikipedia

    en.wikipedia.org/wiki/Reactive_armour

    The advanced Kontakt-5 explosive reactive armour on this T-90S is arranged in pairs of plates, giving the turret its prominent triangular profile.. An element of explosive reactive armour (ERA) is made of either a sheet or slab of high explosive sandwiched between two metal plates, or multiple "banana shaped" rods filled with high explosive which are referred to as shaped charges.

  7. Ohio-class submarine - Wikipedia

    en.wikipedia.org/wiki/Ohio-class_submarine

    The Ohio-class submarine was designed for extended strategic deterrent patrols.Each submarine is assigned two complete crews, called the Blue crew and the Gold crew, each typically serving 70-to-90-day deterrent patrols.

  8. Narco-submarine - Wikipedia

    en.wikipedia.org/wiki/Narco-submarine

    A narco-submarine (also called a drug sub or narco-sub) is a type of custom ocean-going, self-propelled, semi-submersible or fully-submersible vessel built by (or for) drug smugglers. [2] [3] [4] Newer semi-submersibles are "nearly-fully" submersible in order to reduce likelihood of detection by visual, radar, sonar, or infrared systems. [3]

  9. List of main battle tanks by generation - Wikipedia

    en.wikipedia.org/wiki/List_of_main_battle_tanks...

    The third generation of main battle tanks is characterized by composite armour and computer stabilized fire control systems, which allow firing on the move as well as very high first hit probability on targets multiple kilometres away. Many tanks had smoothbore guns with a calibre around 120mm.