Image

An image (from Latin: imago) is an artifact that depicts visual perception, for example a two-dimensional picture, that has a similar appearance to some subject—usually a physical object or a person, thus providing a depiction of it.

Characteristics

Images may be two-dimensional, such as a photograph, screen display, and as well as a three-dimensional, such as a statue or hologram. They may be captured by optical devices – such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water.

The word image is also used in the broader sense of any two-dimensional figure such as a map, a graph, a pie chart, or a painting. In this wider sense, images can also be rendered manually, such as by drawing, the art of painting, carving, rendered automatically by printing or computer graphics technology, or developed by a combination of methods, especially in a pseudo-photograph.

A volatile image is one that exists only for a short period of time. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode ray tube. A fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or any other digital process.

Picture (band)

Picture is one of the first Dutch heavy metal bands. Formed in 1979, they were especially popular in the Netherlands, Germany and Italy for their live performances, and still have a fan base in South America, Mexico and Japan.

Picture supported AC/DC, Ted Nugent and Saxon in the Netherlands. With Saxon, they did a full European tour in 1981. Later on they toured with Rose Tattoo in Germany and headlined tours in Italy and Israel.

Biography

Rinus Vreugdenhil and Laurens Bakker originally got together in 1977 and started jamming with various musicians. It wasn’t until 1979 that the classic lineup of Rinus, Laurens, Jan Bechtum, and Ronald van Prooijen came together.

Early on in Picture's career they were produced by Cat Music. They worked with manager Henk van Antwerpen and were signed to Warner Bros. Records. However, Picture felt their label were trying to steer them in a pop direction and quit the label to sign with Backdoor Records, a subsidiary of Phonogram Records.

The original line-up recorded their debut album, Picture 1 and their second effort, Heavy Metal Ears in 1980 and 1981 respectively. To begin with, they gigged throughout the Netherlands and nearby Germany and built a following. In the meantime, they started composing their own music. Jan would usually come up with the riffs, then the other members would contribute their parts. After hashing and rehashing the songs, they became the titles that would appear on the first album, Picture I.

Picture (string theory)

In superstring theory, each state may be represented in many ways, depending on how the ground state is defined. Each representation is called a picture, and is denoted by a number, such as 0 picture or −1 picture.

The difference between the ground states is according to the action of the superghosts oscillators on them, and the number of the picture (plus 1/2) reflects the highest superghost oscillator which does not annihilate the ground state.

References

Token

Token may refer to:

Currency

Computing

Token Racing

Token Racing was a short-lived Formula One team and constructor from the United Kingdom, participating in four Grands Prix of the 1974 Formula One season.

Token's history began in late 1973 when Rondel Racing, the successful Formula Two team founded by Ron Dennis and Neil Trundle, decided to enter F1. Dennis asked Ray Jessop to design the car, while backing was to come from the French oil company Motul, which had sponsored the team for the previous two years. But when the 1973 oil crisis hit, Motul withdrew, and Dennis was forced to close down the team. The F1 project was subsequently sold to shipbroker Tony Vlassopulo and Lloyd's underwriter Ken Grob, from whose first names the "Token" name was derived, while the car was called the RJ02 in honour of Jessop.

The team made its F1 debut in April 1974 at the non-Championship International Trophy race at Silverstone, with Welshman Tom Pryce at the wheel. Its first Championship race came the following month, at the Belgian Grand Prix, where Pryce qualified 20th but retired at three-quarter distance following a collision with Jody Scheckter's Tyrrell. The team entered the next race at Monaco but was forbidden from taking part on the basis of Pryce's supposed inexperience, prompting the Welshman to move to the Shadow team.

Token (railway signalling)

In railway signalling, a token is a physical object which a locomotive driver is required to have or see before entering onto a particular section of single track. The token is clearly endorsed with the name of the section it belongs to. A token system is used for single lines because of the very much greater risk of serious collision in the event of irregular working by signalmen or traincrews, than on double lines.

Principle

The operation of a bidirectional single track line has obvious problems, the most serious of which is the possibility of two trains traversing the line travelling towards each other, each driver unaware that the other is using the line. The simplest method of controlling such a line is to have only one engine operational, on the basis that a single train cannot collide with itself, and in the absence of another engine, there is nothing else for it to collide with. Such a system is known as "one engine in steam". Such schemes were used, and indeed still are used on some branches of rail networks, and on heritage railways. The main problem with such a scheme is that it is best suited to a completely isolated branch of single track line. Where the section has to be integrated into a larger railway system, it becomes exceptionally limiting in the level of operations that it allows, and the opportunity for a mistake to be made, and an ensuing accident to occur, is high.