374:
364:
The fire mill is a wheel that makes use of the expansion of heated air to generate motive power. The calculated power of
Amontons' fire mill was 39 HP, equal to the power of the most powerful hot air engines of the 19th century (with the exception of the "caloric engine" of Ericsson). The main
481:
later found deviations from
Amontons’ laws in some cases. In systems with significant non-uniformity of the stress field, because local slip occurs before the entire system slides, Amontons’ laws are not satisfied macroscopically.
365:
difference between
Amontons' engine and the hot air engines of the 19th century was the nature of the piston (Amontons used water) and the use of rotational motion instead of alternating motion.
718:
De la resistance causée dans les
Machines, tant par les frottemens des parties qui les composent, que par roideur des cordes qu'on y employe, & la maniere de calculer l'un & l'autre
721:(On the resistance caused in machines, both by the rubbing of the parts that compose them and by the stiffness of the cords that one uses in them, & the way of calculating both),
49:
538:
Développements précoces du concept de travail mécanique (fin 17e s.-début 18e s.): quantification, optimisation et profit de l'effet des agents producteurs
756:
338:. His work led him to speculate that a sufficient reduction in temperature would lead to the disappearance of pressure. Though he came close to finding
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475:
and as the angle of tilt of the plane is increased, the brick will eventually start to move downwards as gravity overcomes the frictional resistance.
357:. In 1699, he built his first engine, more than a century earlier than the well-known Stirling engine. This engine, named by Amontons a "fire mill" (
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203:, he became convinced of the importance of studying machines from a mathematical perspective. He never attended a
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Moyen de substituer commodement l'action du feu, a la force des hommes et des cheveaux pour mouvoir les machines
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843:"Systematic breakdown of Amontons' law of friction for an elastic object locally obeying Amontons' law"
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318:, he established that the pressure of a gas increases by roughly one-third between the temperatures of
123:
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The first and second laws, which were founded by
Amontons, and the third law, which was founded by
17:
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167:, which is the resistance to motion when bodies make contact. He is also known for his work on
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in 1781. For this contribution, Amontons was named as one of the 23 "Men of
Tribology" by
8:
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The force of friction is independent of the apparent area of contact. (Amontons' 2nd law)
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431:
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The force of friction is directly proportional to the applied load. (Amontons' 1st law)
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361:) followed a new thermodynamic cycle, which later became known as the Stirling cycle.
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618:(Method of substituting the force of fire for horse and man power to move machines),
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275:(1695), particularly for use of these instruments at sea. He also demonstrated an
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Remarques et expériences physiques sur la construction d'une nouvelle clepsydre
464:
354:
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Among his contributions to scientific instrumentation were improvements to the
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From Watt to
Clausius: The Rise of Thermodynamics in the Early Industrial Age
810:"The research works of Coulomb and Amontons and generalized laws of friction"
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541:(Doctoral thesis) (in French). Université Claude Bernard Lyon 1. p. 572.
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415:. Though they were received with some skepticism, the laws were verified by
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scale), the discovery would not be complete until at least a century later.
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Kinetic friction is independent of the sliding velocity. (Coulomb's law)
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155:(31 August 1663 – 11 October 1705) was a French scientific instrument
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The laws are shown by the classic example of a brick resting on an
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who had moved to the French capital. While still young, Guillaume
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347:
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140:
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Deaf persons in the arts and sciences: a biographical dictionary
342:- the theoretical temperature by which the volume of air in his
467:, where it is in equilibrium and thus motionless. The force of
236:
184:
105:
27:
French scientific instrument inventor and physicist (1663-1705)
456:. (These 3 laws only apply to dry friction; the addition of a
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will be reduced to nothing (estimated by him as −240° on the
327:
232:
911:
Asimov's
Biographical Encyclopedia of Science and Technology
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B. Le Bovier de
Fontenelle (1705). "Eloge de M. Amontons".
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In 1699, Amontons published his rediscovery of the laws of
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163:. He was one of the pioneers in studying the problem of
556:. Bonnie Meath-Lang. Westport, Conn.: Greenwood Press.
183:
Guillaume was born in Paris, France. His father was a
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modifies the tribological properties significantly.)
330:. This was a substantial step towards the subsequent
195:
and became mostly deaf. According to one biographer,
30:"Amontons" redirects here. For the lunar crater, see
691:
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757:"Men of Tribology: Leonardo da Vinci (1452–1519)"
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384:indicating directions and magnitudes of forces.
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353:Guillaume Amontons is also the inventor of the
295:Amontons investigated the relationship between
247:He was supported in his research career by the
426:
651:(11th ed.). Cambridge University Press.
219:. He also spent time studying the skills of
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727:Histoire de l'Académie Royale des Sciences
723:Mémoires de l'Académie royale des sciences
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624:Histoire de l'Académie Royale des Sciences
620:Mémoires de l'Académie royale des sciences
587:Histoire de l'Académie Royale des Sciences
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1000:Members of the French Academy of Sciences
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858:
825:
772:
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966:on which this biography is partly based.
841:Otsuki, M.; Matsukawa, H. (2013-04-02).
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372:
314:. Though his results were at best semi-
279:and proposed the use of his clepsydra (
14:
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808:Popova, E.; Popov, V.L. (2015-06-30).
798:, Introduction to Tribology - Friction
754:
740:The Friction and Lubrication of Solids
738:Bowden, F.P. & Tabor, D. (1950)
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1010:French scientists with disabilities
24:
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380:for a block on a ramp. Arrows are
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761:Journal of Lubrication Technology
454:Amontons-Coulomb laws of friction
432:Amontons-Coulomb laws of friction
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995:17th-century French physicists
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990:17th-century French inventors
917:, Doubleday & Co., Inc.,
755:Dowson, Duncan (1977-10-01).
285:keeping time on a ship at sea
715:Amontons (19 December 1699)
7:
699:"Ericsson's Caloric Engine"
510:
417:Charles-Augustin de Coulomb
368:
175:, and early engine design.
10:
1031:
535:Yannick Fonteneau (2011).
485:
427:Amontons' laws of friction
29:
964:The Galileo Project entry
933:Cardwell, D.S.L. (1971).
827:10.1007/s40544-015-0074-6
403:is the force of friction.
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124:Thermodynamic temperature
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612:Amontons (20 June 1699)
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207:, but was able to study
648:Encyclopædia Britannica
552:Lang, Harry G. (1995).
517:Newton's laws of motion
242:
178:
452:later, are called the
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259:Scientific instruments
681:"The Stirling Engine"
599:Amontons, G. (1695),
493:Académie des Sciences
411:first put forward by
388:is the normal force,
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334:and, in particular,
309:accurate and precise
53:Guillaume Amontons,
869:2013NatSR...3E1586O
506:is named after him.
217:celestial mechanics
1015:French deaf people
847:Scientific Reports
663:"Amontons' engine"
405:
153:Guillaume Amontons
41:Guillaume Amontons
877:10.1038/srep01586
774:10.1115/1.3453230
703:hotairengines.org
685:hotairengines.org
667:hotairengines.org
413:Leonardo da Vinci
378:Free-body diagram
307:though he lacked
277:optical telegraph
213:physical sciences
199:, while studying
171:, the concept of
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131:Scientific career
55:Luxembourg Garden
32:Amontons (crater)
16:(Redirected from
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112:Known for
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316:quantitative
312:thermometers
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271:(1687), and
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253:public works
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229:architecture
182:
152:
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130:
985:1705 deaths
980:1663 births
498:The crater
301:temperature
281:water clock
273:thermometer
209:mathematics
102:Nationality
974:Categories
269:hygrometer
255:projects.
249:government
205:university
197:Fontenelle
89:1705-10-12
70:1663-08-31
860:1202.1716
783:0022-2305
458:lubricant
265:barometer
225:surveying
161:physicist
895:23545778
853:: 1586.
814:Friction
745:1, 87-89
603:, Paris.
572:31374052
511:See also
500:Amontons
491:Member,
409:friction
369:Friction
332:gas laws
322:and the
297:pressure
267:(1695),
189:Normandy
165:friction
157:inventor
18:Amontons
886:3613807
865:Bibcode
725:, in:
622:, in:
502:on the
486:Honours
479:Coulomb
469:gravity
450:Coulomb
394:gravity
382:vectors
348:Celsius
221:drawing
141:Physics
87: (
68: (
941:
925:
893:
883:
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589:: 150.
570:
560:
495:(1690)
396:, and
283:) for
237:France
227:, and
215:, and
211:, the
185:lawyer
137:Fields
106:French
57:, 1690
953:18-19
855:arXiv
523:Notes
328:water
305:gases
233:Paris
187:from
939:ISBN
923:ISBN
919:1972
891:PMID
779:ISSN
568:OCLC
558:ISBN
504:Moon
320:cold
299:and
243:Work
179:Life
159:and
82:Died
63:Born
881:PMC
873:doi
822:doi
769:doi
326:of
303:in
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951:pp
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400:f
398:F
386:N
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