Plane (tool)

A hand plane is a tool for shaping wood. When powered by electricity, the tool may be called a planer. Planes are used to flatten, reduce the thickness of, and impart a smooth surface to a rough piece of lumber or timber. Planing is used to produce horizontal, vertical, or inclined flat surfaces on workpieces usually too large for shaping. Special types of planes are designed to cut joints or decorative mouldings.

Hand planes are generally the combination of a cutting edge, such as a sharpened metal plate, attached to a firm body, that when moved over a wood surface, take up relatively uniform shavings, by nature of the body riding on the 'high spots' in the wood, and also by providing a relatively constant angle to the cutting edge, render the planed surface very smooth. A cutter which extends below the bottom surface, or sole, of the plane slices off shavings of wood. A large, flat sole on a plane guides the cutter to remove only the highest parts of an imperfect surface, until, after several passes, the surface is flat and smooth. When used for flattening, bench planes with longer soles are preferred for boards with longer longitudinal dimensions. A longer sole registers against a greater portion of the board's face or edge surface which leads to a more consistently flat surface or straighter edge. Conversely, using a smaller plane allows for more localized low or high spots to remain.

Pláně (Plzeň-North District)

Pláně is a village and municipality (obec) in Plzeň-North District in the Plzeň Region of the Czech Republic.

The municipality covers an area of 13.91 square kilometres (5.37 sq mi), and has a population of 259 (as at 3 July 2006).

Pláně lies approximately 23 kilometres (14 mi) north of Plzeň and 82 km (51 mi) west of Prague.

References

Plane (geometry)

In mathematics, a plane is a flat, two-dimensional surface that extends infinitely far. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space. Planes can arise as subspaces of some higher-dimensional space, as with a room's walls extended infinitely far, or they may enjoy an independent existence in their own right, as in the setting of Euclidean geometry.

When working exclusively in two-dimensional Euclidean space, the definite article is used, so, the plane refers to the whole space. Many fundamental tasks in mathematics, geometry, trigonometry, graph theory and graphing are performed in a two-dimensional space, or in other words, in the plane.

Euclidean geometry

Euclid set forth the first great landmark of mathematical thought, an axiomatic treatment of geometry. He selected a small core of undefined terms (called common notions) and postulates (or axioms) which he then used to prove various geometrical statements. Although the plane in its modern sense is not directly given a definition anywhere in the Elements, it may be thought of as part of the common notions. In his work Euclid never makes use of numbers to measure length, angle, or area. In this way the Euclidean plane is not quite the same as the Cartesian plane.

Mars

Mars is the fourth planet from the Sun and the second smallest planet in the Solar System, after Mercury. Named after the Roman god of war, it is often referred to as the "Red Planet" because the iron oxide prevalent on its surface gives it a reddish appearance. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts, and polar ice caps of Earth.

The rotational period and seasonal cycles of Mars are likewise similar to those of Earth, as is the tilt that produces the seasons. Mars is the site of Olympus Mons, the largest volcano and second-highest known mountain in the Solar System, and of Valles Marineris, one of the largest canyons in the Solar System. The smooth Borealis basin in the northern hemisphere covers 40% of the planet and may be a giant impact feature. Mars has two moons, Phobos and Deimos, which are small and irregularly shaped. These may be captured asteroids, similar to 5261 Eureka, a Mars trojan.

Lambic

Lambic is a type of beer traditionally brewed in the Pajottenland region of Belgium (southwest of Brussels) and in Brussels itself at the Cantillon Brewery and museum. Lambic is now mainly consumed after refermentation, resulting in derived beers such as Gueuze or Kriek lambic.

Unlike conventional beers, which are fermented by carefully cultivated strains of brewer's yeasts, lambic is produced by spontaneous fermentation: it is exposed to the wild yeasts and bacteria that are said to be native to the Zenne valley, in which Brussels lies. It is this unusual process which gives the beer its distinctive flavour: dry, vinous, and cidery, usually with a sour aftertaste.

Lambic beer is widely consumed in Brussels and environs, and frequently featured as an ingredient in Belgian cuisine.

Etymology

The name "lambic" entered English via French, but comes from the Dutch language. Lambic is probably derived from the name "Lembeek", referring to the municipality of Lembeek near Halle, close to Brussels.

Mars (actor)

Mars (Chinese: 火星), born Cheung Wing Fat (蔣榮發) is a Hong Kong actor, action director, stuntman and martial artist. He is one of Jackie Chan's best friends.

Early life

Cheung Wing Fat was born in Hong Kong in 1954. He got the nickname "Weird Fire Star" after being involved in a car accident leaving him with two scars on his head. While working as a stuntman on a film in Thailand he got promoted to a supporting actor and needed a stage name. He picked "Mars" based on his nickname. He became a student of Madame Fan Fok Wah (粉菊花, aka Fen Juhua) in The Spring and Autumn Drama School. Every day, he practiced from 5am to 9pm.

Film career

Mars started acting in 1966 at the age of 12. He started out as an extra and later in supporting roles. Lackey and the Lady Tiger (1980) is only the film in which he played the leading role.

In 1971, Mars got his nickname "Mars" from a stunt co-ordinator who suggested it to him since his nickname on stage was Martian Monster, and he ended up with the name Mars after filming The Rescue.