Chemical engineering is a branch of engineering that uses principles of chemistry, physics, mathematics, biology, and economics to efficiently use, produce, design, transport and transform energy and materials. The work of chemical engineers can range from the utilisation of nano-technology and nano-materials in the laboratory to large-scale industrial processes that convert chemicals, raw materials, living cells, microorganisms, and energy into useful forms and products. Chemical engineers are involved in many aspects of plant design and operation, including safety and hazard assessments, process design and analysis, modeling, control engineering, chemical reaction engineering, nuclear engineering, biological engineering, construction specification, and operating instructions. Chemical engineers typically hold a degree in Chemical Engineering or Process Engineering. Practising engineers may have professional certification and be accredited members of a professional body. Such bodies include the Institution of Chemical Engineers (IChemE) or the American Institute of Chemical Engineers (AIChE). A degree in chemical engineering is directly linked with all of the other engineering disciplines, to various extents.

In a modern sense, comedy (from the wikt:κωμῳδία, kōmōidía) is a genre of fiction that refers to any discourse or work generally intended to be [[humorous or amusing by inducing laughter, especially in theatre, television, film, stand-up comedy, books and novels or any other medium of entertainment. The origins of the term are found in Ancient Greece. In the Athenian democracy, the public opinion of voters was influenced by the political satire performed by the comic poets at the theaters. The theatrical genre of Greek comedy can be described as a dramatic performance which pits two groups or societies against each other in an amusing agon or conflict. Northrop Frye depicted these two opposing sides as a "Society of Youth" and a "Society of the Old." A revised view characterizes the essential agon of comedy as a struggle between a relatively powerless youth and the societal conventions that pose obstacles to his hopes. In this struggle, the youth is understood to be constrained by his lack of social authority, and is left with little choice but to take recourse in ruses which engender very dramatic irony which provokes laughter. Satire and political satire use comedy to portray persons or social institutions as ridiculous or corrupt, thus alienating their audience from the object of their humor. Parody subverts popular genres and forms, critiquing those forms without necessarily condemning them. Other forms of comedy include screwball comedy, which derives its humor largely from bizarre, surprising (and improbable) situations or characters, and black comedy, which is characterized by a form of humor that includes darker aspects of human behavior or human nature. Similarly scatological humor, sexual humor, and race humor create comedy by violating social conventions or taboos in comic ways. A comedy of manners typically takes as its subject a particular part of society (usually upper-class society) and uses humor to parody or satirize the behavior and mannerisms of its members. Romantic comedy is a popular genre that depicts burgeoning romance in humorous terms and focuses on the foibles of those who are falling in love.

Martial arts are codified systems and traditions of combat practiced for a number of reasons such as self-defense; military and law enforcement applications; competition; physical, mental and spiritual development; and entertainment or the preservation of a nation's intangible cultural heritage. Although the term martial art has become associated with the fighting arts of East Asia, it originally referred to the combat systems of Europe as early as the 1550s. The term is derived from Latin and means "arts of Mars", the Roman god of war. Some authors have argued that fighting arts or fighting systems would be more appropriate on the basis that many martial arts were never "martial" in the sense of being used or created by professional warriors.

According to Mary Louise Schumacher of the Milwaukee Journal Sentinel, "Bacon appropriated the famous portrait, with its subject, enthroned and draped in satins and lace, his stare stern and full of authority. In Bacon's version, animal carcasses hang at the pope's back, creating a raw and disturbing Crucifixion-like composition. The pope's hands, elegant and poised in Velázquez's version, are rough hewn and gripping the church's seat of authority in apparent terror. His mouth is held in a scream and black striations drip down from the pope's nose to his neck. It's as if Bacon picked up a wide house painting brush and brutishly dragged it over the face. The fresh meat recalls the lavish arrangements of fruits, meats and confections in 17th-century vanitas paintings, which usually carried subtle moralizing messages about the impermanence of life and the spiritual dangers of sensual pleasures. Sometimes, the food itself showed signs of being overripe or spoiled, to make the point. Bacon weds the imagery of salvation, worldly decadence, power and carnal sensuality, and he contrasts those things with his own far more palpable and existential view of damnation".[1]