Changes

[[File:lighterstill.jpg]][[File:Fig_lubricant_additive200.jpg|right|frame]]

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==Origin==

==Origin==

[[Latin]] ''lubricatus'', past participle of ''lubricare'', from ''lubricus'' slippery

[[Latin]] ''lubricatus'', past participle of ''lubricare'', from ''lubricus'' slippery

*[http://en.wikipedia.org/wiki/17th_century 1623]

*[https://en.wikipedia.org/wiki/17th_century 1623]

==Definition==

==Definition==

*1: to make smooth or slippery  

*1: to make smooth or slippery  

==Description==

==Description==

'''Lubrication''' is the [[process]], or [[technique]] employed to reduce wear of one or both [[surfaces]] in close proximity, and moving [[relative]] to each other, by interposing a substance called ''lubricant'' between the surfaces to carry or to help carry the load ([[pressure]] generated) between the [[opposing]] surfaces. The interposed lubricant film can be a solid, (e.g. [http://en.wikipedia.org/wiki/Graphite graphite], MoS2) a solid/liquid [[dispersion]], a liquid, a liquid-liquid dispersion (a [http://en.wikipedia.org/wiki/Grease_(lubricant) grease]) or, exceptionally, a [[gas]].

'''Lubrication''' is the [[process]], or [[technique]] employed to reduce wear of one or both [[surfaces]] in close proximity, and moving [[relative]] to each other, by interposing a substance called ''lubricant'' between the surfaces to carry or to help carry the load ([[pressure]] generated) between the [[opposing]] surfaces. The interposed lubricant film can be a solid, (e.g. [https://en.wikipedia.org/wiki/Graphite graphite], MoS2) a solid/liquid [[dispersion]], a liquid, a liquid-liquid dispersion (a [https://en.wikipedia.org/wiki/Grease_(lubricant) grease]) or, exceptionally, a [[gas]].

In the most common case the applied load is carried by [[pressure]] generated within the [[fluid]] due to the [[friction]]al viscous [[resistance]] to [[motion]] of the lubricating fluid between the surfaces.

In the most common case the applied load is carried by [[pressure]] generated within the [[fluid]] due to the [[friction]]al viscous [[resistance]] to [[motion]] of the lubricating fluid between the surfaces.

Lubrication can also describe the [[phenomenon]] such reduction of wear occurs without human [[intervention]] (hydroplaning on a road).

Lubrication can also describe the [[phenomenon]] such reduction of wear occurs without human [[intervention]] (hydroplaning on a road).

In the [[science]] of [[friction]], lubrication and wear is called [http://en.wikipedia.org/wiki/Tribology tribology].

In the [[science]] of [[friction]], lubrication and wear is called [https://en.wikipedia.org/wiki/Tribology tribology].

Adequate lubrication allows smooth continuous operation of equipment, with only mild wear, and without excessive [[stresses]] or seizures at bearings. When lubrication breaks down, metal or other [[components]] can rub destructively over each other, causing destructive damage, [[heat]], and [[failure]].[http://en.wikipedia.org/wiki/Lubrication]

Adequate lubrication allows smooth continuous operation of equipment, with only mild wear, and without excessive [[stresses]] or seizures at bearings. When lubrication breaks down, metal or other [[components]] can rub destructively over each other, causing destructive damage, [[heat]], and [[failure]].[https://en.wikipedia.org/wiki/Lubrication]

[[Category: Physics]]

[[Category: Physics]]