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Xeerarka physics, ama sababta shay oo dhan uu hoos u dhaco?
Maxaad shay oo dhan uu hoos u dhaco marka ay lumiyaan Gornadahanaga noogana, iyo qofka podprygnuvshy up, mar kale waxa ku sugan Dhulka? Jawaabta su'aashan been in diyaarada ee shuruucda aasaasiga ah ee physics iyo maamuus lagu sharaxay (in turjumaad ka soo Laatiin - "culus", "miisaan") ama, in si kale loo dhigo, soo jiidashada uu dumo, hanti ah soo jireenka ah ee arrinta. Nuxurka of this ifafaale been in xaqiiqda ah in jirkooda oo dhan waxaa soo jiitay in kasta oo kale. Tusaale ahaan, dhulka ay ciidanka gravitational xajiya laftiisa on gabi ahaanba wax kasta, dhirta, guryaha, dadka, biyo, iwm Sababo la cuf soconno, ma duuli iska bannaan ee caalamka oo dhan.
Si kastaba ha ahaatee, haddii aynu ka fiirsan xiddigaha iyo meerayaasha, ciidanka gravitational noqdo la taaban karo sababta oo ah xajmiga iyo miisaanka marar badan ka sii badan waxa nagu wareegsan ay. Iyo sababta shay oo dhan uu hoos u dhaco, ay sabab u tahay xaqiiqada ah in tiro ka mid ah our Earth badan nin ka badan, ama xarunta kasta oo kale. The
Haddaba su'aasha ka dhalan kara: maxaad alaabta oo dhan uu hoos u dhaco, iyo dayaxa - lahayn? Arrintan waxa lagu sharaxay by xaqiiqada ah in ay sabab u doodidda mooshinka joogta ah dhulka ku wareegsan sarkhaansan cuf waa la hayaa. Haddaba, haddii moon ahaa, oo aanu isku shaandheyn, waa sida wax kasta oo kale, waxaa sidoo kale dhici lahaa iyadoo la raacayo sharciyada jirka.
Mabda'a of cuf caalamka ayaa furay saynisyahan ah Ingiriisi Newton. Waxa uu ahaa kii ugu horeeyay in ay caddeyso jiritaanka iyo saamaynta dhammaan walxaha koonka. Waxaa ciidanka taas oo ka dhigaysa meerayaasha oo dhan soc qorraxda, ninkii - dhulka ku socdaan, iyo tufaax - in uu hoos u dhaco.
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