KLM

KLM, legally Koninklijke Luchtvaart Maatschappij N.V. (Royal Dutch Airlines), is the flag carrier airline of the Netherlands. KLM is headquartered in Amstelveen, with its hub at nearby Amsterdam Airport Schiphol. It is part of the Air France–KLM group, and is a member of the SkyTeam airline alliance. KLM was founded in 1919; it is the oldest airline in the world still operating under its original name and had 32,505 employees as of 2013.

KLM operates scheduled passenger and cargo services to approximately 130 destinations. Passenger aircraft are configured in a three-class layout, including business class, Economy Comfort, and economy class. KLM has a reputation as one of the world's safest airlines. Its frequent-flyer program is called Flying Blue, and has codeshare agreements with other airlines—both members and non-members of SkyTeam.

History

Formation and early years

In 1919, a young aviator lieutenant named Albert Plesman sponsored the ELTA aviation exhibition in Amsterdam. The exhibition was a great success; after it closed several Dutch commercial interests intended to establish a Dutch airline, which Plesman was nominated to head. In September 1919, Queen Wilhelmina awarded the yet-to-be-founded KLM its "Royal" ("Koninklijke") predicate. On 7 October 1919, eight Dutch businessmen, including Frits Fentener van Vlissingen, founded KLM—the abbreviation of Koninklijke Luchtvaart Maatschappij ("Royal Dutch Airlines") as one of the first commercial airline companies. Plesman became its first administrator and director.

KLM destinations

KLM was set up by Albert Plesman on 7 October 1919 and started operations on 19 May 1920. The first route served was the Amsterdam–London one, flown with DH.9As that carried just two passengers on a charter basis. Two Fokker F.IIs that were delivered in September 1920 (1920-09) were later deployed on this very first route. Intercontinental flights were started with Fokker F.VII equipment in November 1924 (1924-11), serving the Dutch East Indies, although it was not until 1931 that regular services on this line were implemented. It normally took 11 or 12 days to complete the 9,000-mile (14,000 km) long flight between Amsterdam and Batavia, calling at Budapest, Athens, Cairo, Baghdad, Bushire, Jask, Karachi, Jodhpur, Allahabad, Calcutta, Akyab, Rangoon, Bangkok, Medan and Palembang. In 1926, the Rotterdam–Amsterdam–Copenhagen run was extended to Malmö.

Circle

A circle is a simple shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.

A circle is a simple closed curve which divides the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is only the boundary and the whole figure is called a disk.

A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0, or the two-dimensional shape enclosing the most area per unit perimeter squared, using calculus of variations.

Terminology

YouTube

YouTube is a video-sharing website headquartered in San Bruno, California, United States. The service was created by three former PayPal employees in February 2005. In November 2006, it was bought by Google for US$1.65 billion. YouTube now operates as one of Google's subsidiaries. The site allows users to upload, view, rate, share and comment on videos, and it makes use of WebM, H.264/MPEG-4 AVC, and Adobe Flash Video technology to display a wide variety of user-generated and corporate media video. Available content includes video clips, TV clips, music videos, movie trailers and other content such as video blogging, short original videos, and educational videos.

Most of the content on YouTube has been uploaded by individuals, but media corporations including CBS, the BBC, Vevo, Hulu, and other organizations offer some of their material via YouTube, as part of the YouTube partnership program. Unregistered users can watch videos, and registered users can upload videos to their channels. Videos considered to contain potentially offensive content are available only to registered users affirming themselves to be at least 18 years old.

Imperative mood

The imperative is a grammatical mood that forms commands or requests, including the giving of prohibition or permission, or any other kind of advice or exhortation.

An example of a verb in the imperative mood is be in the English sentence "Please be quiet". Imperatives of this type imply a second-person subject (you); some languages also have first- and third-person imperatives, with the meaning of "let's (do something)" or "let him/her/them (do something)" (these forms may alternatively be called cohortative and jussive).

Imperative mood can be denoted by the glossing abbreviation IMP. It is one of the irrealis moods.

Formation

Imperative mood is often expressed using special conjugated verb forms. Like other finite verb forms, imperatives often inflect for person and number. Second-person imperatives (used for ordering or requesting performance directly from the person being addressed) are most common, but some languages also have imperative forms for the first and third persons (alternatively called cohortative and jussive respectively).