Ẓeṛ aɣbalu n Arxmides

[[Tugna:Domenico-Fetti Archimedes 1620.jpg|vignette|239x239px|Asunaɣ n Arxmides (deg ahat 1620).]]
'''Arxmides''' neɣ '''Arcimides''' (s tagrikit taqburt : Ἀρχιμήδης, s [[talatint]] : ''Archimedes''<ref>{{En}} [https://en.etudes.ru/etudes/archimedes/ Sphere volume: Archimedes Scales], deg ''en.etudes.ru''.</ref>), illul deg ahat 287 Uqbel Ɛisa deg [[Sičilya]], yemmut deg 212/211 Uqbel Ɛisa deg [[Sičilya]] daɣen, d [[Tusnakt|amusnak]] ed amesnulfu i mucaɛen maḍi deg [[Legrik tagelsant]]<ref name=":0">{{En}} [https://www.britannica.com/biography/Archimedes Archimedes], deg ''britannica.com''.</ref>. 

== Tudert ==
Arxmides yezdeɣ tuget n tudert-is deg ''Syrakusa'' (d tamdint tagrikit meqqren akk deg [[Sičilya]]), anda yella d imqerreb n ugellid-is ''Hieron II<ref name=":0" />''. Yella icɣel-d d inadiyen ussnan deg waṭas n taɣulin em [[tanzeggit]], [[tasengama]] ed [[tmikanikt]]<ref>{{Fr}} [https://www.larousse.fr/encyclopedie/personnage/Archim%C3%A8de/105994 Archimède], deg ''larousse.fr''.</ref>. Yella yetturar tamlilt d taxatart deg aḥuddu n ''Syrakusa'' mgal yirumyen deg 213 Üqbel Ɛisa (yebna tinaεurin n [[ṭṭrad]]), deffir irumyen kecmen ɣar ''Syrakusa'' deg 212 neɣ 211 Uqbel Ɛisa, irumyen i t-yenɣan Arxmides deg tamdint-is<ref name=":0" />. 

== Ayen yexdem ==
Arxmides yufa-d wassaɣ ger tajumma ed [[Ableɣ|ubleɣ]] n [[Tasegla|takurt]] ed awlellu-is, yufa-d daɣen umenzay n Arxmides ed tafetlit n Arxmides<ref name=":0" />.

=== Ɣef takurt ed awlellu ===
[[Tugna:Esfera Arquímedes0.svg|vignette|127x127px|Takurt ed awlellu n Arxmides.]]
Deg sin n yidlisen Arxmides yessken : Tajumma n ayen tellan [[Tasegla|takurt]] ([[aqqaṛ]]-is <math>r</math>) teɛdil uqus (rebɛa) tikkelt n tajumma n [[tawinest]]-is tameqqerant : (<math>4\pi r^2\,</math>). [[Ableɣ]] n [[Tasegla|takurt]] yeɛdil sin n ttlut (<math>\frac{2}{3}</math>) n [[Ableɣ|ubleɣ]] n awlellu-is : <math>\frac{4}{3}\pi r^3</math><ref name=":0" />. 

[[Ableɣ]] n awlellu (i yesɛan llsas-is yeɛdil [[tawinest]] tameqqerant n [[Tasegla|takurt]], ed asawen-is yeɛdel [[Akdu|ukdu]] n [[Tasegla|takurt]]-nni) d yeɛdel kraḍ tikkelt azgen (<math>\frac{3}{2}</math>) n [[Ableɣ|ubleɣ]] n [[Tasegla|takurt]]-nni, ed tajumma n awlellu-nni teɛdel daɣen kraḍ tikkelt azgen (<math>\frac{3}{2}</math>) n tajumma n [[Tasegla|takurt]]-nni<ref>{{Fr}} [http://villemin.gerard.free.fr/GeomLAV/Objet3D/CoArchim.htm OBJETS 3D], deg ''villemin.gerard.free.fr''.</ref>.

=== Umenzay n Arxmides ===
[[Tugna:Principio di Archimede galleggiamento.png|vignette|160x160px|Umenzay n Arxmides.]]
[[Tugna:Archimedes Principle.webm|vignette|200x200px|Umenzay n Arxmides.]]
Asaḍuf n [[tasengama]] ad d-teskan : anda tella tafekka yebbeẓ (uzgen neɣ merra) deg [[amazzal]] neɣ lgaz, ittemlili-d [[tadusi]] s ukessar ɣer usawen, teɛdel [[azuk]] n [[Amazzal|umazzal]] neɣ lgaz wi yettwakkes s tafekka-nni, ed [[ableɣ]] n [[amazzal]] neɣ lgaz wi yettwakkes yeɛdel [[Ableɣ|ubleɣ]] n tafekka-nni<ref>{{En}} [https://www.britannica.com/science/Archimedes-principle Archimedes’ principle], deg ''britannica.com''.</ref>{{,}}<ref>{{Fr}} [https://www.larousse.fr/encyclopedie/divers/principe_d_Archim%C3%A8de/22660 principe d'Archimède], deg ''larousse.fr''.</ref>.  

<math display="block"> F_{a} = \rho g V </math>

<math>F_{a}</math> : [[tadusi]] n itekk-d nnig [[amazzal]].

<math>\rho</math> : tneẓẓi.

<math>g</math> : ameɣlal n [[Taldayt|tajebda]]. 

<math>V</math> : [[ableɣ]] n [[amazzal]] neɣ lgaz wi yettwakkes.


<math>\rho = m/V</math> ⇒ <math>m= \rho V</math>  ⇒ <math>F_{a} = m_{a} g </math> ; akked <math>m_{a} </math> : tneẓẓi n [[amazzal]] neɣ lgaz wi yettwakkes.

⇒ <math>m_{a} g = W </math> ; akked <math>W </math> : azuk n [[amazzal]] neɣ lgaz wi yettwakkes<ref>{{En}} [https://www.khanacademy.org/science/physics/fluids/buoyant-force-and-archimedes-principle/a/buoyant-force-and-archimedes-principle-article What is Archimedes' principle?], deg ''khanacademy.org''.</ref>.

<math display="block"> F_{a} = W </math>

=== Tafetlit n Arxmides ===
[[Tugna:Archimedes screw.JPG|vignette|120x120px|Tafetlit n Arxmides]]
Arxmides i d-yesnulfan tafetlit-is (tafetlit n Arxmides); d tnaεurt tella i wakken ad tessnekreḍ [[aman]], d yiwent seg talɣiwin n ujeɛbub deg-s talɣa n tafetlit yekna akked tiɣmeṛt n ahat 45 n tfesniwin (45°) yebbeɣ deg waman ɣer yixef-is amedda. Amussu n tnaεurt-nni yessuli [[aman]] deg ujeɛbub<ref>{{En}} [https://www.britannica.com/technology/Archimedes-screw Archimedes screw], deg ''britannica.com''.</ref>.

== Tizmilin ==
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