13,094
edits
Changes
From Nordan Symposia
Jump to navigationJump to search
mLine 3:
Line 3: − + Line 10:
Line 10: − + − +
Text replacement - "http://" to "https://"
==Etymology==
==Etymology==
earlier, therapeutic rubbing of the limbs, from Middle French, from [[Latin]] friction-, frictio, from fricare to rub; akin to Latin friare to crumble, and perhaps to [[Sanskrit]] bhrīṇanti they injure
earlier, therapeutic rubbing of the limbs, from Middle French, from [[Latin]] friction-, frictio, from fricare to rub; akin to Latin friare to crumble, and perhaps to [[Sanskrit]] bhrīṇanti they injure
*Date: [http://www.wikipedia.org/wiki/18th_Century 1704]
*Date: [https://www.wikipedia.org/wiki/18th_Century 1704]
==Definitions==
==Definitions==
*1 a : the rubbing of one [[body]] against another
*1 a : the rubbing of one [[body]] against another
*3 : [[sound]] produced by the movement of air through a narrow constriction in the mouth or glottis
*3 : [[sound]] produced by the movement of air through a narrow constriction in the mouth or glottis
==Description==
==Description==
Several famous scientists and engineers contributed to our understanding of friction. They include [http://en.wikipedia.org/wiki/Leonardo_da_Vinci Leonardo da Vinci], [http://en.wikipedia.org/wiki/Guillaume_Amontons Guillaume Amontons], [http://en.wikipedia.org/wiki/John_Theophilus_Desaguliers John Theophilus Desaguliers], [[Euler|Leonard Euler]], and [http://en.wikipedia.org/wiki/Charles-Augustin_de_Coulomb Charles-Augustin de Coulomb]. Their findings are codified into these [[laws]]:
Several famous scientists and engineers contributed to our understanding of friction. They include [https://en.wikipedia.org/wiki/Leonardo_da_Vinci Leonardo da Vinci], [https://en.wikipedia.org/wiki/Guillaume_Amontons Guillaume Amontons], [https://en.wikipedia.org/wiki/John_Theophilus_Desaguliers John Theophilus Desaguliers], [[Euler|Leonard Euler]], and [https://en.wikipedia.org/wiki/Charles-Augustin_de_Coulomb Charles-Augustin de Coulomb]. Their findings are codified into these [[laws]]:
*1. The [[force]] of friction is directly [[proportional]] to the applied load. (Amontons' 1st Law)
*1. The [[force]] of friction is directly [[proportional]] to the applied load. (Amontons' 1st Law)
*2. The force of friction is [[independent]] of the apparent area of contact. (Amontons' 2nd Law) (Amontons' 2nd Law does not work for elastic, deformable materials. For example, wider tires on cars provide more traction than narrow tires for a given vehicle [[mass]] because of [[surface]] deformation of the tire)
*2. The force of friction is [[independent]] of the apparent area of contact. (Amontons' 2nd Law) (Amontons' 2nd Law does not work for elastic, deformable materials. For example, wider tires on cars provide more traction than narrow tires for a given vehicle [[mass]] because of [[surface]] deformation of the tire)
*3. Kinetic friction is independent of the sliding [[velocity]]. (Coulomb's Law of Friction)[http://en.wikipedia.org/wiki/Friction]
*3. Kinetic friction is independent of the sliding [[velocity]]. (Coulomb's Law of Friction)[https://en.wikipedia.org/wiki/Friction]
[[Category: Physics]]
[[Category: Physics]]
