four to one
31Four-stroke engine — Four stroke cycle used in gasoline/petrol engines. The right blue side is the intake and the left yellow side is the exhaust. The cylinder wall is a thin sleeve surrounded by cooling liquid. A video montage of the Otto engines running at the… …
32One Life to Live — Title card (2004–present) Genre Soap opera Created by Agnes Nixon …
33Four Great Inventions — Five major steps in papermaking, outlined by Cai Lun in AD 105 Traditional Chinese 四大發明 …
34One Hundred Years of Solitude —   …
35Four sons of Horus — One of the four sons of Horus was Hapi, which is also an alternate spelling for the name of the Nile god Hapy, but not to be confused with him .The four sons of Horus were a group of four gods in Egyptian religion, who were essentially the… …
36One Tree Hill (season 5) — One Tree Hill: Season 5 One Tree Hill Season 5 DVD Cover Country of origin …
37One Big Happy Family — Genre Reality television Starring The Coles family Country of origin United States Language(s) English No. of seasons 2 …
38Four Seasons — Hotel  Cet article concerne le groupe hôtelier. Pour le groupe de musique, voir The Four Seasons. Le groupe Four Seasons Hotel dans le mo …
39One Piece: Pirates' Carnival — North American cover art for GCN Developer(s) h.a.n.d …
40One in a Million (season 2) — Format Interactive reality game show Directed by Alet Arzuan Presented by …