NdFeB Magnet mai inganci daga gabas
Takaitaccen Bayani:
Hangzhou Magnet Power NdFeB Magnet, smco Magnet, na'ura mai juyi, Magnet taro, Halbach taro
NdFeB Magnet mai inganci daga gabas
Asirin ikon Gabas,
Gada na dubban shekaru, Confucius ya ba da shawarar
Fitattun mutane
daidai lokacin da daidai wurin
A cikin rubuce-rubucen daga lokacin bazara da lokacin kaka da lokacin Jihohin yaƙi, abubuwan jan hankali na ƙarfemaganadisuaka maimaita rikodin.Alal misali, "Magnetic dutse yana kiran baƙin ƙarfe" a cikin "Lu Shi Chun Qiu" da aka rubuta a karni na uku BC, da kuma " dutsen maganadisu yana kiran allura " a cikin "Guiguzi" wanda ba shi da nisa da juna duka.A wannan lokacin, mai yiwuwa magnetism an fi saninsa kuma idan aka kwatanta shi da sha'awar uwa mai ƙauna ga 'ya'yanta.
Gao Yao na daular Han ta Gabas ya ce a cikin bayaninsa na "Lu Shi Chun Qiu" cewa: Dutse ita ce uwar ƙarfe, amma akwai duwatsu masu kyau da marasa kyau.Dutsen kirki yana iya jan hankalin 'ya'yansa (ƙarfe), amma dutse mara kyau ba zai iya jawo shi ba..Saboda haka, kafin daular Han, an rubuta maganadisu a matsayin "Ci Shi", wanda ke nufin "Dutse na Alheri".
Daga baya, babu makawa mutane sun yi amfani da maganadisu don ƙoƙarin jawo wasu karafa ko abubuwa.Menene sakamakon?
Littafin "Huainanzi" da aka rubuta a daular Han ta Yamma ya rubuta cewa: "Idan wani dutse mai kyau zai iya haɗa baƙin ƙarfe, zai yi wuya a yi amfani da shi don jagorantar tayal.""Ba zai iya haɗawa da jan karfe ba."A lokacin Mulkin Uku, wani kuma ya ce: "Ba za a iya tanƙwara dutsen alheri ba."Abin da ake kira “alura mai lankwasa” mai yiwuwa yana nufin alluran da aka yi da ƙarfe irin su zinariya, azurfa, da tagulla, waɗanda ba shakka ba su da sha’awar maganadisu.
Wadannan bayanan sun nuna cewa daular Han ta gane cewa maganadisu na iya jawo baƙin ƙarfe ne kawai amma ba wasu abubuwa ba.Wannan kadan ne na ci gaba.Mun san cewa maganadisu na iya jawo hankalin juna kawai zuwa ƙarfe, amma idan magnet yana kusa da juna, lamarin ya ɗan fi rikitarwa.Magnet ko da yaushe suna da sanduna biyu, daya ake kira kudu pole daya kuma ake kira arewa pole.A lokacin, akwai wanin Masanin kimiyyar alchemist mai suna Luan Da wanda ya yi maganadisu biyu, masu kama da chess kuma suna kusa da juna.An ce ba wai kawai za su iya jawo hankalin juna ba (" soke juna"), a'a, a'a, "kowace juna ba tare da iyaka ba", wato, tunkude juna.Wannan ita ce dabarar da ake kira "yaƙin darasi".Ya yi wannan dabara ga Sarkin sarakuna Wu na daular Han.kumasarki ya yi nishadi, don haka ya samu mukamin “General-riba-biyar” a hukumance.
