Carbon–hydrogen bond C−H bond is generally regarded as being non-polar. In structural formulas of molecules, the hydrogen atoms are often omitted. Compound classes consisting solely of C–H bonds and C–C bonds are alkanes, alkenes, alkynes, and aromatic hydrocarbons. Collectively they are known as hydrocarbons. In October 2016, astronomers reported that the very basic chemical ingredients of life—the carbon-hydrogen molecule (CH, or methylidyne radical), the carbon-hydrogen positive ion (CH+) and the carbon ion (C+)—are the result, in large part, of ultraviolet light from stars, rather than in other ways, such as the result of turbulent events related to supernovae and young stars, as
Bob (given name) include people associated with the various football codes, which include gridiron football, association football (soccer), rugby league, rugby union, Gaelic football, and Australian rules football. Bob (given name) Bob is a male given name or a hypocorism, usually of Robert. It is most common in English speaking countries such as the United States, Canada, Ireland, the United Kingdom, Australia, and New Zealand. It most likely originated from the hypocorism Rob, short for Robert. Rhyming names were popular in the Middle Ages, so "Richard" became "Rick", "Hick", or "Dick", "William" became "Will", "Gill", or "Bill", and "Robert" became "Rob", "Hob", "Dob",