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  2. Space Engineers - Wikipedia

    en.wikipedia.org/wiki/Space_Engineers

    A model and texture overhaul of the nuclear reactors; battery blocks; airtight hangar doors; rocket pod and gatling gun; and couch block. It also contains a "searchlight" block (a spotlight-camera-turret combo), a heat vent block, a set of bridge windows, a light panel, a "helm" station, a new helmet, a reinforced sliding door, and two new emotes.

  3. Grumman C-2 Greyhound - Wikipedia

    en.wikipedia.org/wiki/Grumman_C-2_Greyhound

    The first of two prototypes flew in 1964. After successful testing, Grumman began production of the aircraft in 1965. The C-2 replaced the piston-engine Grumman C-1 Trader in the carrier onboard delivery (COD) role. The original C-2A aircraft were overhauled to extend their operational life in 1973. [2]

  4. Piston effect - Wikipedia

    en.wikipedia.org/wiki/Piston_effect

    The piston effect is very pronounced in railway tunnels, because the cross sectional area of trains is large and in many cases almost completely fills the tunnel cross section. The wind felt by the passengers on underground railway platforms (that do not have platform screen doors installed) when a train is approaching is air flow from the ...

  5. Siege engine - Wikipedia

    en.wikipedia.org/wiki/Siege_engine

    Siege engine in Assyrian relief of attack on an enemy town during the reign of Tiglath-Pileser III 743-720 BC from his palace at Kalhu (Nimrud). The earliest siege engines appear to be simple movable roofed towers used for cover to advance to the defenders' walls in conjunction with scaling ladders, depicted during the Middle Kingdom of Egypt. [2]

  6. Pontiac 2+2 - Wikipedia

    en.wikipedia.org/wiki/Pontiac_2+2

    The designation 2+2 was borrowed from European sports car terminology, for a seating arrangement of two in front plus two in the rear. It was designated officially at Pontiac as a "regular performance" model, [2] a thoroughly confusing designation for a vehicle that was clearly intended to be to the Catalina platform what the GTO was to the A-body Lemans: the standard drivetrain was a 2-barrel ...