machine wear mechanism
61Condition monitoring — is the process of monitoring a parameter of condition in machinery, such that a significant change is indicative of a developing failure. It is a major component of predictive maintenance. The use of conditional monitoring allows maintenance to… …
62Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
63AK-47 — For other uses, see AK 47 (disambiguation). AK 47[1] Standard AK 47 Type …
64Key (lock) — A cut key A key is an instrument that is used to operate a lock. A typical key consists of two parts: the blade, which slides into the keyway of the lock and distinguishes between different keys, and the bow, which is left protruding so that… …
65Dunk tank — The dunking mechanism on the typical dunk tank is triggered by a ball hitting a small target. A dunk tank, also known as a dunking booth or dunking machine, is an attraction mainly used in funfairs, fundraisers, and personal parties. Basically, a …
66Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
67Bicycle brake systems — are used to slow down, or brake a bicycle. There have been various types through history, and several are still in use today.HistoryEarly bicycles such as the high wheeled penny farthing bikes were fitted with spoon brakes. As they were fixed… …
68Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
69Flash memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile …
70Dorothy Levitt — on the frontispiece of The Woman and the Car Born 1883[1] Probably Hackn …
