Zoo NdFeB Magnet los ntawm sab hnub tuaj

Lus piav qhia luv luv:

Hangzhou Magnet zog NdFeB Magnet, smco hlau nplaum, rotor, hlau nplaum sib dhos, halbach los ua ke

Zoo NdFeB Magnet los ntawm sab hnub tuaj

Lub hwj chim mysterious ntawm sab hnub tuaj,

tau txais txiaj ntsig ntau txhiab xyoo, pom zoo los ntawm Confucius

Cov neeg zoo

lub sijhawm thiab qhov chaw raug


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Nyob rau hauv cov ntawv sau los ntawm Lub Caij Nplooj Ntoos Hlav thiab Lub Caij Nplooj Ntoos Hlav thiab Lub Sijhawm Tsov Rog, cov hlau ntxim nyiam ntawmhlau nplaumraug kaw ntau zaus.Piv txwv li, "sib nqus pob zeb summons hlau" nyob rau hauv "Lu Shi Chun Qiu" sau nyob rau hauv lub peb caug xyoo BC, thiab lub "sib nqus pob zeb summons lub koob" nyob rau hauv lub "Guiguzi" tsis deb ntawm ib leeg yog ob leeg.Lub sijhawm no, kev sib nqus hlau nplaum feem ntau tau lees paub thiab muab piv rau qhov kev nyiam ntawm leej niam hlub rau nws cov menyuam.

Gao Yao ntawm Eastern Han Dynasty tau hais hauv nws cov lus piav qhia ntawm "Lu Shi Chun Qiu": Pob zeb yog leej niam ntawm hlau, tab sis muaj pob zeb zoo thiab tsis zoo.Lub pob zeb zoo tuaj yeem nyiam nws cov menyuam yaus (hlau), tab sis lub pob zeb tsis zoo tsis tuaj yeem nyiam nws..Yog li ntawd, ua ntej Han Dynasty, cov hlau nplaum tau sau ua "Ci Shi", uas txhais tau tias "Lub Pob Zeb ntawm Kev Siab Zoo".

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Tom qab ntawd, tib neeg tau siv cov hlau nplaum los sim nyiam lwm yam hlau lossis khoom siv.Qhov tshwm sim yog dab tsi?

Phau ntawv "Huainanzi" sau nyob rau hauv Western Han Dynasty tau sau tias: "Yog tias lub pob zeb zoo tuaj yeem txuas tau hlau, nws yuav nyuaj rau siv nws los ua cov vuas.""Nws tsis tuaj yeem txuas rau tooj liab."Thaum lub sij hawm peb lub Nceeg Vaj, ib tug neeg kuj hais tias: "Lub pob zeb ntawm kev siab zoo yuav khoov tsis tau."Lub npe hu ua "cov koob nkhaus" tej zaum yuav hais txog cov koob uas ua los ntawm cov hlau xws li kub, nyiaj, thiab tooj liab, uas yog qhov tseeb tsis nyiam los ntawm cov hlau nplaum.

Cov ntaub ntawv no qhia tias Han Dynasty pom tau hais tias cov hlau nplaum tsuas tuaj yeem nyiam hlau tab sis tsis yog lwm yam.Qhov no yog me ntsis kev vam meej.Peb paub tias cov hlau nplaum tsuas tuaj yeem nyiam ib leeg rau hlau, tab sis yog cov hlau nplaum nyob ze rau ib leeg, qhov xwm txheej yuav nyuaj me ntsis.Cov hlau nplaum yeej ib txwm muaj ob tug ncej, ib tug hu ua tus ncej qab teb thiab lwm tus hu ua tus ncej qaum teb.Thaum ntawd, muaj ib tugn alchemist hu ua Luan Da uas ua ob lub hlau nplaum, uas zoo li chess daim thiab nyob ze rau ib leeg.Nws tau hais tias lawv tuaj yeem tsis tsuas yog nyiam ib leeg ("tso tseg ib leeg"), tab sis kuj "tshem tawm ib leeg mus tas li", uas yog, tawm tsam ib leeg.Qhov no yog qhov hu ua "sib ntaus sib tua chess" dag.Nws ua qhov kev dag ntxias no rau Emperor Wu ntawm Han Dynasty,thiabTus huab tais tau lom zem, yog li nws tau txais txoj haujlwm tseem ceeb ntawm "Tsib txiaj ntsig General".

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