Derailleur gears battery pack and to a small electric motor that drives the derailleur. Although expensive, an electronic system could save a racing cyclist time when changing gears. Derailleur gears Derailleur gears are a variable-ratio transmission system commonly used on bicycles, consisting of a chain, multiple sprockets of different sizes, and a mechanism to move the chain from one sprocket to another. Although referred to as "gears" in the bike world, these bicycle "gears" are technically "sprockets" since they drive or are driven by a chain, and are not driven by one another. Modern front and rear derailleurs typically consist of a
Influence of French on English linguist Henriette Walter, words of French origin represent more than two thirds of the English vocabulary. It is estimated by linguist Anthony Lacoudre that over 40 000 English words are directly French and may be understood without orthographical change by French speakers. At the beginning of 11th century, the English language did not have a well-defined status. Indeed, the inhabitants of what would become Great Britain did not have a language that allowed them to communicate with each other. There were many different dialectal forms. Great Britain, in which various Celtic idioms had coexisted since the fourth century, had experienced