Trailer (vehicle)

A trailer is generally an unpowered vehicle towed by a powered vehicle. It is commonly used for the transport of goods and materials.

Sometimes recreational vehicles, travel trailers, or mobile homes with limited living facilities, where people can camp or stay have been referred to as trailers. In earlier days, many such vehicles were towable trailers.

United States

In the United States, the term is sometimes used interchangeably with travel trailer and mobile home, varieties of trailers and manufactured housing designed for human habitation. Their origins lay in utility trailers built in a similar fashion to horse-drawn wagons. A trailer park is an area where mobile homes are placed for habitation.

In the United States trailers ranging in size from single-axle dollies to 6-axle, 13 ft 6 in (4,115 mm) high, 53 ft 0 in (16,154 mm) long semi-trailers are commonplace. The latter, when towed as part of a tractor-trailer or "18-wheeler", carries a large percentage of the freight that travels over land in North America.

Superman (1978 film)

Superman (informally titled Superman: The Movie in some listings and reference sources) is a 1978 superhero film directed by Richard Donner. It is based on the DC Comics character of the same name and stars Marlon Brando, Gene Hackman, Christopher Reeve, Margot Kidder, Glenn Ford, Phyllis Thaxter, Jackie Cooper, Trevor Howard, Marc McClure, Terence Stamp, Valerie Perrine, and Ned Beatty. The film depicts Superman's origin, including his infancy as Kal-El of Krypton and his youthful years in the rural town of Smallville. Disguised as reporter Clark Kent, he adopts a mild-mannered disposition in Metropolis and develops a romance with Lois Lane, while battling the villainous Lex Luthor.

Several directors, most notably Guy Hamilton, and screenwriters (Mario Puzo, David and Leslie Newman, and Robert Benton), were associated with the project before Donner was hired to direct. Tom Mankiewicz was drafted in to rewrite the script and was given a "creative consultant" credit. It was decided to film both Superman and Superman II simultaneously, with principal photography beginning in March 1977 and ending in October 1978. Tensions rose between Donner and the producers, and a decision was made to stop filming the sequel—of which 75 percent had already been completed—and finish the first film.

Superman (1979 video game)

Superman is an action adventure game for the Atari 2600 designed by John Dunn and published by Atari, Inc. in 1978 or 1979.Superman was built using the prototype code for Warren Robinett's Adventure, and ended up being published before Adventure was finished.

Gameplay

The player(s) takes control of the DC Comics character Superman, who must repair the bridge destroyed by Lex Luthor, capture Luthor and his criminal underlings, enter a phonebooth to turn back into Clark Kent, then return to the Daily Planet in the shortest possible time. To slow Superman's progress, Kryptonite has been released by Luthor. If hit by Kryptonite, Superman loses his abilities to capture criminals and fly. To regain them, he must find and kiss Lois Lane.

Three of Superman's powers are used in this game: strength, X-ray vision, and flight.

The game can be played with two players. The player using the left joystick controller will have priority over the left and right movement of Superman, while the player using the right controller will have priority over up and down movement of Superman.

Superman (gene)

Superman is a plant gene in Arabidopsis thaliana, that plays a role in controlling the boundary between stamen and carpel development in a flower. It is named for the comic book character Superman, and the related genes kryptonite (gene) and clark kent were named accordingly (although the latter turns out to just be another form of superman). It encodes a transcription factor (specifically a C2H2 type zinc finger protein).Homologous genes are known in the petunia and snapdragon, which are also involved in flower development, although in both cases there are important differences from the functioning in Arabidopsis. Superman is expressed early on in flower development, in the stamen whorl adjacent to the carpel whorl. It interacts with the other genes of the ABC model of flower development in a variety of ways.

Gene function

Superman encodes a transcription factor. This protein binds to the DNA through a zinc finger binding motif acts as a regulator of floral homeotic genes, controlling the development of the flowers of Arabidopsis thaliana plants. Arabidopsis thaliana flowers develop in four whorls, which are concentric groups of cells branching off of the growing meristem.Superman has been found to act in the fourth whorl of flowers, which would normally develop into Carpels. Superman normally restricts the effect of another gene called (APETALA3) in the fourth whorl, leaving APETALA3 expression only present in the second and third whorls. APETALA3 is a gene normally associated with the development of a stamen in the third whorl, so by its restriction, we allow for the development of other organs in the fourth whorl (such as the Pistil).