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The Z-drive is so named because of the appearance (in cross section) of the mechanical driveshaft or transmission configuration used to connect the mechanically supplied driving energy to the Z-drive azimuth thruster device. This form of power transmission is called a Z-drive because the rotary motion has to make two right angle turns, thus ...
A cargo ship discharging ballast water into the sea. Ballast water discharges by ships can have a negative impact on the marine environment. [1] Cruise ships, large tankers, and bulk cargo carriers use a huge amount of ballast water, which is often taken on in the coastal waters in one region after ships discharge wastewater or unload cargo, and discharged at the next port of call, wherever ...
Although the Soviet Union had a large force of combat vehicles before the German invasion, heavy losses led to a high demand for new vehicles. Production was complicated by the loss of production facilities in the western part of the Soviet Union, and entire factories were moved east of the Ural Mountains to put them out of reach of the Germans ...
The following is a list of slang that is used or popularized by Generation Z (Gen Z), generally those born between the late 1990s and early 2010s in the Western world. Generation Z slang differs from slang of prior generations. [1] [2] Ease of communication with the Internet facilitated the rapid proliferation of Gen Z slang. [2] [3] [4]
An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion.The vehicle can be powered by a collector system, with electricity from extravehicular sources, or can be powered autonomously by a battery or by converting fuel to electricity using a generator or fuel cells. [1]
The average speed of Viking ships varied from ship to ship but lay in the range of 5 to 10 knots (9 to 19 km/h), and the maximum speed of a longship under favorable conditions was around 15 knots (28 km/h). [7] The long-ship is as a graceful, long, narrow, light, wooden boat with a shallow draft hull designed for speed.
From 2014 to 2017, Twitter offered a "Buy button" feature, allowing tweets to embed products that could be purchased from within the service. Users could also add their billing and shipping information directly to their accounts. The buy button's platform partners at launch included Stripe, Gumroad, Musictoday, and The Fancy, [232]
USS Frontier (AD-25) was one of four Klondike class destroyer tenders built at the tail end of World War II for the United States Navy. Frontier was launched on 25 March 1945 by the Los Angeles Shipbuilding and Dry Dock Company , San Pedro , California , sponsored by Mrs. George M. Ravenscroft, and commissioned 2 March 1946.