Uzibuthe: Isingeniso Esiphelele
I-magnetism iyisenzakalo semvelo esiye sathakazelisa abantu kusukela ezikhathini zasendulo. Konke kusukela kumakhampasi asendulo kuya kobuchwepheshe besimanje njenge-MRI (Magnetic Resonance Imaging) kuhilela izimiso eziyisisekelo ze-magnetism. Lesi sihloko sizohlola izisekelo ze-magnetism, izinhlobo zama-magnet, izimiso zawo zokusebenza, kanye nokusetshenziswa okusebenzayo empilweni yansuku zonke kanye nobuchwepheshe.
Ukuqonda Okuyisisekelo Ngobugqinsi
Empeleni, i-magnetism iyimpahla ebonakalayo yezinto ezidonsela noma ezixosha ezinye izinto. I-magnetism ibangelwa ugesi noma ukuba khona kwensimu yamagnetic. Insimu yamagnetic yindawo ezungeze i-magnet lapho ithonya layo lingazwakala khona.
Isazi sefiziksi uHans Christian Ørsted wayengomunye wososayensi bokuqala ukuthola ubudlelwano phakathi kukagesi kanye nemagnetism ngo-1820. U-Ørsted wathola ukuthi ukugeleza kwamandla kagesi ngentambo kubangela ukuphambuka kwenaliti yekhampasi ebekwe eduze kwentambo. Lokhu kutholwa kwavula indlela yokuthuthukiswa kwenkolelo-mbono ye-electromagnetism.
Izinhlobo Zama-Magnets
1. Omaginethi Abahlala Njalo Nabesikhashana
– Omaginethi Ahlala Njalo: Lawa maginethi agcina izakhiwo zawo zomaginethi ngisho noma engenawo amandla kazibuthe angaphandle. Izibonelo ezivame kakhulu amaginethi ebha kanye namaginethi ehhashi.
– Omaginethi Besikhashana: Lawa maginethi abonisa kuphela izakhiwo zawo zamaginethi uma ebekwe ensimini yamagnetic yangaphandle. Ngokuvamile enziwa ngezinto ze-ferromagnetic ezifana nensimbi, ezilahlekelwa izakhiwo zazo zamaginethi uma insimu yamagnetic yangaphandle isusiwe.
2. Omazibuthe Bemvelo Nabokwenziwa
– Omaginethi Bemvelo: Omaginethi bemvelo, njenge-lodestone, bangamaminerali anezakhiwo zemvelo zamaginethi. Lawa maginethi atholakala emvelweni futhi asetshenziswe kusukela ezikhathini zasendulo.
– Omaginethi Okwenziwa: Omaginethi okwenziwa enziwa ngezindlela ezithile, njengokuhlikihla insimbi ngemaginethi ehlala njalo noma ngokudlulisa ugesi ngentambo (i-solenoid).
3. Ugesi kagesi
I-electromagnet uhlobo lwe-magnet lapho insimu yamagnetic ikhiqizwa khona ngokugeleza kogesi. Insimu yamagnetic iyanyamalala lapho ugesi umiswa. Ama-electromagnet anezinhlelo zokusebenza eziningi, kufaka phakathi kuma-motor kagesi, ama-generator, kanye nama-MRI scanner.
Indlela Omaginethi Abasebenza Ngayo
Omaginethi basebenza ngokusekelwe esimisweni sokukhanga kanye nokuxosha phakathi kwezinsika ezisebenza ngogesi. Umaginethi unezinsika ezimbili eziyinhloko: isinsika sasenyakatho kanye nesinsika saseningizimu. Amandla okukhanga kanye nokuxosha phakathi kwalezi zinsika angafingqwa kanje:
– Njengezinsika Ziyaxoshana: Izinsika zasenyakatho ezinezinsika zasenyakatho noma izinsika zaseningizimu ezinezinsika zaseningizimu zizoxoshana.
– Izinsika Eziphambene Ziyakhanga: Isinsika sasenyakatho nesinsika saseningizimu zizokhangana.
Lesi simo sibangelwa insimu yamagnetic ekhiqizwa ukunyakaza kwama-electron ngaphakathi kwezinto. Lawa ma-electron anesikhathi samagnetic esingaphakathi esidala insimu yamagnetic.
Amandla Okuzibuthe Ekuphileni Kwansuku Zonke
I-Magnetism inezinhlelo eziningi ekuphileni kwansuku zonke:
1. Ikhampasi
Ikhampasi iyithuluzi elilula lokuhamba elisebenza ngesimiso semagnetism. Inaliti yekhampasi iyimagnet encane, ejikelezayo ngokukhululeka ehlala ikhomba empondweni wasenyakatho wemagnethi woMhlaba, isiza ukuzulazula, ikakhulukazi kumatilosi nabahloli bamazwe.
2. Amadivayisi E-elekthronikhi
Amadivayisi amaningi kagesi, njenge-hard drive yekhompyutha, asebenzisa isimiso se-magnetism ukugcina idatha. Ulwazi lugcinwa ngesimo sama-bits, amelwe amasimu amancane kazibuthe kudiski.
3. AmaMoto Kagesi NamaJeneretha
Ama-motor kagesi asebenzisa omazibuthe kagesi ukuguqula amandla kagesi abe amandla omshini. Ngokuphambene nalokho, ojeneretha basebenzisa amasimu kazibuthe ukuguqula amandla omshini abe amandla kagesi. Womabili abalulekile empilweni yanamuhla ngezinjongo zasekhaya kanye nezezimboni.
Ukusetshenziswa kobuchwepheshe beMagnetic
I-Magneticism nayo idlala indima ebalulekile kwezobuchwepheshe obuthuthukisiwe obuningana:
1. Ukufanekisa Ukuzwakala Kwamagnetic (i-MRI)
I-MRI iyindlela yokuthwebula izithombe yezokwelapha engangenisi uhlaselo esebenzisa insimu enamandla yamagnetic kanye namaza omsakazo ukukhiqiza izithombe ezinemininingwane yezitho zangaphakathi. Lobu buchwepheshe bubalulekile ekuxilongweni kwezokwelapha ngoba bungakhiqiza izithombe ezinekhwalithi ephezulu ngaphandle kwesidingo sokuhlinzwa.
2. Ezokuthutha Ngesitimela saseMaglev
I-Maglev, isifinyezo se-"magnetic levitation," ubuchwepheshe bezokuthutha lapho izitimela zigxuma khona ngaphezu kwezitimela zisebenzisa omazibuthe abanamandla, okunciphisa ukungqubuzana futhi kuzivumele ukuba zihambe ngesivinini esikhulu kakhulu. Izitimela ze-Maglev sezivele zisebenza emazweni amaningana, okuhlanganisa iJapan neChina.
3. Isitoreji Samandla
Omaginethi asetshenziswa futhi kumadivayisi okugcina amandla afana nama-flywheels namabhethri e-magnetoelectric. Ama-flywheels asebenzisa umfutho wamandla kazibuthe ukugcina amandla e-kinetic, kuyilapho amabhethri e-magnetoelectric esebenzisa izimiso ze-magnetism ukwandisa umthamo wokugcina amandla.
Ubuciko Bokudonsela Emsebenzini Wocwaningo Nentuthuko
Ucwaningo emkhakheni we-magnetism luyaqhubeka, luvula indlela yezinto ezintsha kanye nezinhlelo zokusebenza. Ezinye zezihloko zocwaningo zamanje zifaka:
1. Izinto Ezintsha ZikaMazibuthe
Abacwaningi bayaqhubeka nokufuna izinto ezintsha ezisebenza kahle futhi ezinobungani nemvelo. Olunye ucwaningo lugxile ekwakheni izinto ezisekelwe ensimbini engavamile enezakhiwo ezingcono kakhulu ezisebenza ngogesi.
2. I-Spintronics
I-Spintronics iwumkhakha wocwaningo ocwaninga ukusetshenziswa kwe-electron spin, ngaphezu kokushaja kwayo kagesi, kumadivayisi enkumbulo kanye ne-logic. Lobu buchwepheshe bungaholela kumakhompyutha asheshayo futhi asebenza kahle.
3. I-Magnetocaloric
Umphumela we-magnetocaloric uyinto lapho into ishisa noma iphola khona ngenxa yensimu kazibuthe eshintshayo. Lokhu kungaba nezinhlelo zokusebenza ezinhlelweni zokupholisa ezinobungani nemvelo.
Isiphetho
I-magnetism iyinto eyisisekelo enezinhlobo eziningi zezicelo, kusukela ekuphileni kwansuku zonke kuya kubuchwepheshe obuthuthukisiwe. Ukuqonda kwethu okukhulayo nge-magnetism kuye kwavumela izinto ezintsha ezithinta cishe zonke izici zokuphila kwanamuhla. Kusukela kumakhampasi asendulo kuya kuma-MRI ayinkimbinkimbi, i-magnetism iyaqhubeka nokuzibonakalisa isisekelo esibalulekile ku-physics kanye nobuchwepheshe. Njengoba ucwaningo luqhubeka, singalindela ukuthi izinhlelo zokusebenza eziningi ezintsha zivele ekuqondeni okujulile kwe-magnetism.
