Slot

Slot may refer to:

Technology

Leading edge slot

A leading edge slot is a fixed aerodynamic feature of the wing of some aircraft to reduce the stall speed and promote good low-speed handling qualities. A leading edge slot is a spanwise gap in each wing, allowing air to flow from below the wing to its upper surface. In this manner they allow flight at higher angles of attack and thus reduce the stall speed.

Purpose and development

At an angle of attack above about 15° many airfoils enter the stall. Modification of such an airfoil with a fixed leading edge slot can increase the stalling angle to between 22° and 25°.

Slots were first developed by Handley Page in 1919 and the first aircraft to fly with them was the experimental H.P.17, a modified Airco DH.9A. The first aircraft fitted with controllable slots was the Handley Page H.P.20. Licensing the design became one of Handley Page’s major sources of income in the 1920s.

Similar, but retractable, leading edge devices are called slats. When the slat opens, it creates a slot between the slat and the remainder of the wing; retracted, the drag is reduced.

Slot (ice hockey)

In hockey, the slot is the area on the hockey rink directly ahead of the goaltender between the faceoff circles on each side. It is sometimes referred to as the "scoring area".

The "deep" or "high" slot refers to the area from the top of the circles, farthest from the goaltender, to the end of the slot at the hash marks. The distinction of where the deep slot begins is contentious. In general, it is the defenceman's responsibility to guard offensive players in the slot, while the offside winger covers offensive players in the deep slot. Because the deep slot is protected by an offensively minded winger and not a defenceman, forwards will often hover in the deep slot waiting for an opportunity to move towards the net for a scoring opportunity.

Fen

A fen is one of the main types of wetland, the others being grassy marshes, forested swamps, and peaty bogs. Along with bogs, fens are a kind of mire. Fens are usually fed by mineral-rich surface water or groundwater. They are characterised by their water chemistry, which is pH neutral or alkaline, with relatively high dissolved mineral levels but few other plant nutrients. They are usually dominated by grasses and sedges, and typically have brown mosses in general including Scorpidium or Drepanocladus. Fens frequently have a high diversity of other plant species including carnivorous plants such as Pinguicula. They may also occur along large lakes and rivers where seasonal changes in water level maintain wet soils with few woody plants. The distribution of individual species of fen plants is often closely connected to water regimes and nutrient concentrations.

Fens have a characteristic set of plant species, which sometimes provide the best indicators of environmental conditions. For example, fen indicator species in New York State include Carex flava, Cladium mariscoides, Potentilla fruticosa, Pogonia ophioglossoides and Parnassia glauca.

Car (Greek mythology)

Car or Kar (Greek: Κάρ) is a name in Greek mythology that refers to two characters who may or may not be one and the same.

The name "Car" is unrelated to the English word "car" (vehicle).

Car of Megara

According to Pausanias, Car was the king of Megara and the son of Phoroneus (and Cerdo). His tomb was located on the road from Megara to Corinth. The acropolis at Megara derived its name Caria from him.

Car of the Carians

Herodotus mentions a (probably) different Car, brother of Lydus and Mysus; the three brothers were believed to have been the ancestral heroes and eponyms of the Carians, the Lydians and the Mysians respectively. This Car was credited by Pliny the Elder with inventing the auspicia.

Car was also said to have founded the city Alabanda, which he named after Alabandus, his son by Callirhoe (the daughter of the river god Maeander). In turn, Alabandus's name is said to have been chosen in commemoration of his Car's victory in a horse fight— according to the scholar Stephanus of Byzantium, "Alabandos" was the Carian word for "winner in a horse fight". Another son of Car, Idrieus, had the city Idrias named after himself.

Canopus

Canopus (/kəˈnoʊpəs/; α Car, α Carinae, Alpha Carinae) is the brightest star in the southern constellation of Carina, and the second brightest star in the night-time sky, after Sirius. Canopus's visual magnitude is −0.72, and it has an absolute magnitude of −5.65.

Canopus is a supergiant of spectral type F. Canopus is essentially white when seen with the naked eye (although F-type stars are sometimes listed as "yellowish-white"). It is located in the far southern sky, at a declination of −52° 42' (2000) and a right ascension of 06h24.0m.

Its name comes from the mythological Canopus, who was a navigator for Menelaus, king of Sparta.

Observational history

In Indian Vedic literature, the star Canopus is associated with the sage Agastya, one of the ancient rishis (the others are associated with the stars of the Big Dipper). Agastya, the star, is said to be the 'cleanser of waters' and its rising coincides with the calming of the waters of the Indian Ocean. It is considered the son of Pulasthya, son of Brahma.