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Delta-v (also known as "change in velocity"), symbolized as and pronounced deltah-vee, as used in spacecraft flight dynamics, is a measure of the impulse per unit of spacecraft mass that is needed to perform a maneuver such as launching from or landing on a planet or moon, or an in-space orbital maneuver.
Doorway pages are often easy to identify in that they have been designed primarily for search engines, not for human beings. Sometimes a doorway page is copied from another high ranking page, but this is likely to cause the search engine to detect the page as a duplicate and exclude it from the search engine listings.
Portal Reloaded is a single-player mod for Portal 2 created by Jannis Brinkmann and was released on April 19, 2021, exactly 10 years after the release of Portal 2. [274] The mod gives players the ability to fire a third portal, the "time portal", to travel between the present and future versions of each test chamber.
A screenshot of the English Wikipedia login screen. In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system or program by identifying and authenticating themselves.
In 1980, airline industry entrepreneur Frank Lorenzo, through his holding company Texas Air Corporation, formed startup, non-union airline New York Air.Operations commenced on December 19, 1980, with hourly shuttle service between New York LaGuardia, Washington National, and Boston Logan airports in direct competition with the long-established, successful Eastern Air Lines Shuttle.
Delta Delta Delta (ΔΔΔ), also known as Tri Delta, is a global [1] women's fraternity and Greek life organization founded on November 27, 1888 at Boston University. With over 200,000 living initiates at 141 chapters and over $450M assets under management, Tri Delta is one of the largest National Panhellenic Conference Greek-letter societies.
Search engine optimization (SEO) is the process of improving the volume and quality of traffic to a web site from search engines via "natural" search results.Usually, the earlier a site is presented in the search results, or the higher it "ranks," the more searchers will visit that site.
The Thor-Delta, also known as Delta DM-19 or just Delta was an early American expendable launch system used for 12 orbital launches in the early 1960s. A derivative of the Thor-Able , it was a member of the Thor family of rockets, and the first member of the Delta family.