Derailleur gears operates the lever while pedalling, the change in cable tension moves the chain-guide from side to side, "derailing" the chain onto different sprockets. For more information about the choice of particular gear ratios and sprocket sizes, see Bicycle gearing. "Derailleur" is a French word, spelled "dérailleur" in French, derived from the derailment of a train from its tracks. Its first recorded use was 1930. At least one notable bicycle industry author has attempted to promote the anglicized spelling of "derailer". As of 2013, however, neither Merriam-Webster nor the Oxford English Dictionary has an entry for "derailer". Various derailleur systems were
On the Origin of the "Influencing Machine" in Schizophrenia On the Origin of the "Influencing Machine" in Schizophrenia "On the Origin of the 'Influencing Machine' in Schizophrenia" is an article written by psychoanalyst Viktor Tausk. It was first published in 1919 in the journal "Internationale Zeitschrift für Psychoanalyse" and then, after translation into English by Dorian Feigenbaum, in the "Psychoanalytic Quarterly" in 1933. The paper describes Tausk's observations and psychoanalytic interpretation of paranoid delusion that occurs in patients diagnosed with schizophrenia. The delusion often involves their being influenced by a "diabolical machine", just outside the technical understanding of the victim, that influences them from afar. It is typically believed