API Gravity: An arbitrary scale expressing the gravity or density of liquid petroleum products. The measuring scale is calibrated in terms of degrees API; it is calculated as follows: Degrees API = (141.5 / (sp. gr. 60ÂºF / 60ÂºF)) - 131.5 The higher the API gravity, the lighter the compound.
| Filed Under: Firsts 1 Comment. The now famous character Mario was created by Shigeru Miyamoto and has appeared in over 200 video games. Marioâs first appearance was in Donkey Kong (ãã³ã­ã¼ã³ã³ã°) in 1981, which is another iconic arcade game developed by Nintendo. In Donkey Kong, Mario was known as âJumpmanâ the carpenter. In later games, Mario is depicted as a short Italian plumber.
Two of the original Nintendo Entertainment System Mario games have been ported to Wii U and altered to feature Luigi as the protagonist. Luigi was first introduced in the 1983 arcade game Mario Bros., where he and Mario battle pests on a single screen. The first game to star Luigi was the 1992 game Mario is Missing. The first game to use the Luigi branding is the 2001 game Luigi's Mansion, which introduces the haunted theme that is used in many of Luigi's following appearances.