{"id":12586,"date":"2025-08-22T10:56:10","date_gmt":"2025-08-22T02:56:10","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=12586"},"modified":"2025-08-22T10:56:10","modified_gmt":"2025-08-22T02:56:10","slug":"je-hlinik-magneticky-2","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/is-aluminum-magnetic-2\/","title":{"rendered":"Je hlin\u00edk magnetick\u00fd?"},"content":{"rendered":"

\"Nemagnetick\u00fd
Nemagnetick\u00e9 hlin\u00edkov\u00e9 profily ide\u00e1ln\u00ed pro p\u0159esn\u00e9 prost\u0159ed\u00ed<\/figcaption><\/figure>\n<\/p>\n

Mnoho lid\u00ed je p\u0159ekvapeno, kdy\u017e se magnet na hlin\u00edk nep\u0159ichyt\u00ed. Mohou si dokonce myslet, \u017ee je n\u011bco \u0161patn\u011b s magnetem nebo s kovem. Toto chov\u00e1n\u00ed m\u00e1 v\u0161ak sv\u016fj d\u016fvod.<\/p>\n

Hlin\u00edk nen\u00ed magnetick\u00fd tak, jak v\u011bt\u0161ina lid\u00ed ch\u00e1pe magnetismus. Nep\u0159itahuje magnety, proto\u017ee nen\u00ed feromagnetick\u00fd, ale naopak je slab\u011b paramagnetick\u00fd.<\/strong><\/p>\n

V\u011bt\u0161ina lid\u00ed nikdy nep\u0159em\u00fd\u0161l\u00ed o r\u016fzn\u00fdch typech magnetismu. Pochopen\u00ed toho, pro\u010d se hlin\u00edk chov\u00e1 tak, jak se chov\u00e1, v\u0161ak za\u010d\u00edn\u00e1 t\u00edm, \u017ee pochop\u00edte, co vlastn\u011b znamen\u00e1 slovo \"magnetick\u00fd\".<\/p>\n

Pro\u010d se magnety nelep\u00ed na hlin\u00edk?<\/h2>\n

V\u011bt\u0161ina lid\u00ed si mysl\u00ed, \u017ee v\u0161echny kovy jsou magnetick\u00e9. Vezmou magnet na ledni\u010dku, zkus\u00ed ho p\u0159ilo\u017eit na hlin\u00edk a nic se nestane. To zp\u016fsobuje zmatek.<\/p>\n

Magnety se na hlin\u00edk nelep\u00ed, proto\u017ee nen\u00ed feromagnetick\u00fd. Feromagnetismus je vlastnost, d\u00edky n\u00ed\u017e magnety p\u0159ilnou k materi\u00e1l\u016fm, jako je \u017eelezo.<\/strong><\/p>\n

\"Elektronov\u00e1
Hlin\u00edkov\u00e9 profily s neferomagnetick\u00fdmi vlastnostmi<\/figcaption><\/figure>\n<\/p>\n

Hlin\u00edk se skl\u00e1d\u00e1 z atom\u016f, jejich\u017e elektrony jsou uspo\u0159\u00e1d\u00e1ny tak, \u017ee nepodporuj\u00ed siln\u00e9 magnetick\u00e9 vyrovn\u00e1n\u00ed. T\u00edm se li\u0161\u00ed od feromagnetick\u00fdch kov\u016f, kde se mnoho elektron\u016f uspo\u0159\u00e1d\u00e1 ve stejn\u00e9m sm\u011bru, co\u017e vytv\u00e1\u0159\u00ed siln\u00e9 magnetick\u00e9 pole. Proto se magnet snadno p\u0159ichyt\u00ed k \u017eelezu, ale ne k hlin\u00edku.<\/p>\n

P\u0159esto\u017ee je hlin\u00edk kov, nem\u00e1 spr\u00e1vnou atomovou strukturu pro feromagnetismus. Spad\u00e1 do kategorie zvan\u00e9 \"paramagnetick\u00fd\". To znamen\u00e1, \u017ee slab\u011b reaguje na magnetick\u00e9 pole, ale ne natolik, aby se k n\u011bmu magnety p\u0159ichytily.<\/p>\n

Porovn\u00e1n\u00ed typ\u016f magnetismu<\/h3>\n

Porovnejme t\u0159i z\u00e1kladn\u00ed typy magnetismu, abychom pochopili, kam pat\u0159\u00ed hlin\u00edk:<\/p>\n\n\n\n\n\n\n\n
Typ magnetismu<\/th>\nP\u0159\u00edklad materi\u00e1l\u016f<\/th>\nMagnetick\u00e9 chov\u00e1n\u00ed<\/th>\n<\/tr>\n<\/thead>\n
Feromagnetick\u00e9<\/td>\n\u017delezo, nikl, kobalt<\/td>\nSiln\u00e1 p\u0159ita\u017elivost, magnety se dr\u017e\u00ed<\/td>\n<\/tr>\n
Paramagnetick\u00e9<\/td>\nHlin\u00edk, ho\u0159\u010d\u00edk<\/td>\nSlab\u00e1 p\u0159ita\u017elivost, pouze v siln\u00fdch pol\u00edch<\/td>\n<\/tr>\n
Diamagnetick\u00e9<\/td>\nM\u011b\u010f, vizmut, st\u0159\u00edbro<\/td>\nSlab\u00e9 odpuzov\u00e1n\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Hlin\u00edk je paramagnetick\u00fd. To znamen\u00e1, \u017ee v p\u0159\u00edtomnosti siln\u00e9ho magnetick\u00e9ho pole se jeho elektrony sna\u017e\u00ed vyrovnat, ale jen m\u00edrn\u011b a do\u010dasn\u011b.<\/p>\n

I v tomto p\u0159\u00edpad\u011b je \u00fa\u010dinek tak slab\u00fd, \u017ee neuc\u00edt\u00edte \u017e\u00e1dn\u00fd tah ani neuvid\u00edte \u017e\u00e1dn\u00fd pohyb magnetu. Proto magnety sklouz\u00e1vaj\u00ed z hlin\u00edku, jako by tam nic nebylo.<\/p>\n

<\/svg> Hlin\u00edk je feromagnetick\u00fd materi\u00e1l.<\/b>False<\/span><\/p>

Hlin\u00edk je paramagnetick\u00fd, nikoli feromagnetick\u00fd. Nepodporuje siln\u00e9 magnetick\u00e9 vyrovn\u00e1n\u00ed.<\/p><\/div>\n

<\/svg> Magnety se na hlin\u00edk nelep\u00ed, proto\u017ee nen\u00ed feromagnetick\u00fd.<\/b>Pravda<\/span><\/p>

Hlin\u00edk nem\u00e1 elektronovou strukturu pot\u0159ebnou pro feromagnetismus, tak\u017ee se na n\u011bj magnety nelep\u00ed.<\/p><\/div>\n

M\u016f\u017ee se hlin\u00edk st\u00e1t magnetick\u00fdm za jak\u00fdchkoli podm\u00ednek?<\/h2>\n

Lid\u00e9 se n\u011bkdy ptaj\u00ed, zda by se hlin\u00edk nemohl n\u011bjak\u00fdm zp\u016fsobem st\u00e1t magnetick\u00fdm - mo\u017en\u00e1 d\u00edky l\u00e9\u010db\u011b, elekt\u0159in\u011b nebo extr\u00e9mn\u00edmu prost\u0159ed\u00ed.<\/p>\n

Hlin\u00edk se nem\u016f\u017ee st\u00e1t trvale magnetick\u00fdm za norm\u00e1ln\u00edch ani extr\u00e9mn\u00edch podm\u00ednek. V siln\u00fdch pol\u00edch m\u016f\u017ee vykazovat slab\u00e9 magnetick\u00e9 vyrovn\u00e1n\u00ed, ale po odstran\u011bn\u00ed pole tento efekt okam\u017eit\u011b zmiz\u00ed.<\/strong><\/p>\n

\"\u017d\u00e1dn\u00e1
Hlin\u00edkov\u00e9 okenn\u00ed r\u00e1my zaji\u0161\u0165uj\u00ed nulov\u00e9 magnetick\u00e9 ru\u0161en\u00ed<\/figcaption><\/figure>\n<\/p>\n

V laboratorn\u00edch podm\u00ednk\u00e1ch jsem vid\u011bl, \u017ee hlin\u00edk m\u016f\u017ee vykazovat zn\u00e1mky magnetizace, pokud je vystaven vysok\u00fdm magnetick\u00fdm pol\u00edm. To se v\u0161ak velmi li\u0161\u00ed od toho, \u017ee se zmagnetuje jako magnet na ledni\u010dku nebo permanentn\u00ed magnet.<\/p>\n

Je to do\u010dasn\u00fd \u00fa\u010dinek. Jakmile pole zmiz\u00ed, materi\u00e1l se vr\u00e1t\u00ed do nemagnetick\u00e9ho stavu.<\/p>\n

Tento druh do\u010dasn\u00e9 reakce naz\u00fdv\u00e1me \"indukovan\u00fd paramagnetismus\". Jin\u00fdmi slovy, hlin\u00edk vykazuje magnetick\u00e9 chov\u00e1n\u00ed pouze uvnit\u0159 magnetick\u00e9ho pole. Nem\u016f\u017ee si toto chov\u00e1n\u00ed udr\u017eet.<\/p>\n

Kdy\u017e se hlin\u00edk zd\u00e1 b\u00fdt magnetick\u00fd<\/h3>\n

Existuj\u00ed p\u0159\u00edpady, kdy si lid\u00e9 mysl\u00ed, \u017ee se hlin\u00edk st\u00e1v\u00e1 magnetick\u00fdm:<\/p>\n

    \n
  • Elektromagnetick\u00e1 indukce:<\/strong> Kdy\u017e se hlin\u00edk pohybuje v magnetick\u00e9m poli (nebo naopak), m\u016f\u017ee vytv\u00e1\u0159et proudy, kter\u00e9 se naz\u00fdvaj\u00ed v\u00ed\u0159iv\u00e9 proudy. Ty mohou vytv\u00e1\u0159et magnetick\u00e9 efekty.<\/li>\n
  • N\u00edzk\u00e9 teploty:<\/strong> Paramagnetismus se p\u0159i ni\u017e\u0161\u00edch teplot\u00e1ch m\u00edrn\u011b zesiluje, ale ne natolik, aby se hlin\u00edk stal skute\u010dn\u011b magnetick\u00fdm.<\/li>\n
  • Siln\u00e1 magnetick\u00e1 pole:<\/strong> \u00da\u010dinek je m\u011b\u0159iteln\u00fd v laboratorn\u00edch p\u0159\u00edstroj\u00edch, ale ne ru\u010dn\u011b.<\/li>\n<\/ul>\n

    P\u0159esto \u017e\u00e1dn\u00fd z t\u011bchto sc\u00e9n\u00e1\u0159\u016f ne\u010din\u00ed hlin\u00edk magnetick\u00fdm tak, jak to lid\u00e9 obvykle mysl\u00ed. V okam\u017eiku, kdy tyto podm\u00ednky p\u0159estanou platit, hlin\u00edk magnetick\u00e9 chov\u00e1n\u00ed ztrat\u00ed.<\/p>\n\n\n\n\n\n\n\n\n
    Stav<\/th>\nChov\u00e1n\u00ed v hlin\u00edku<\/th>\n<\/tr>\n<\/thead>\n
    Norm\u00e1ln\u00ed prost\u0159ed\u00ed<\/td>\n\u017d\u00e1dn\u00fd magnetismus<\/td>\n<\/tr>\n
    Siln\u00e9 magnetick\u00e9 pole<\/td>\nSlab\u00e9, do\u010dasn\u00e9 zarovn\u00e1n\u00ed<\/td>\n<\/tr>\n
    Po odstran\u011bn\u00ed pole<\/td>\nN\u00e1vrat do nemagnetick\u00e9ho stavu<\/td>\n<\/tr>\n
    Bl\u00edzko supravodiv\u00fdch magnet\u016f<\/td>\nMal\u00e9 indukovan\u00e9 magnetick\u00e9 chov\u00e1n\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    <\/svg> Hlin\u00edk se v siln\u00e9m magnetick\u00e9m poli trvale magnetizuje.<\/b>False<\/span><\/p>

    Hlin\u00edk vykazuje v magnetick\u00e9m poli pouze slabou, do\u010dasnou magnetizaci. Nest\u00e1v\u00e1 se trvale magnetick\u00fdm.<\/p><\/div>\n

    <\/svg> Hlin\u00edk vykazuje slab\u00fd magnetismus pouze p\u0159i p\u016fsoben\u00ed siln\u00e9ho pole.<\/b>Pravda<\/span><\/p>

    Elektrony hlin\u00edku se p\u0159i vystaven\u00ed siln\u00e9mu magnetick\u00e9mu poli slab\u011b vyrovn\u00e1vaj\u00ed, ale po odstran\u011bn\u00ed pole se okam\u017eit\u011b vr\u00e1t\u00ed zp\u011bt.<\/p><\/div>\n

    Jak reaguje hlin\u00edk na siln\u00e9 magnetick\u00e9 pole?<\/h2>\n

    N\u011bkte\u0159\u00ed lid\u00e9 si mo\u017en\u00e1 mysl\u00ed, \u017ee hlin\u00edk na magnety v\u016fbec nereaguje, ale nen\u00ed to pravda.<\/p>\n

    Hlin\u00edk vykazuje slab\u00e9 paramagnetick\u00e9 chov\u00e1n\u00ed v siln\u00fdch magnetick\u00fdch pol\u00edch. Do\u010dasn\u011b vyrovn\u00e1v\u00e1 n\u011bkter\u00e9 sv\u00e9 elektrony, ale tento efekt nen\u00ed trval\u00fd.<\/strong><\/p>\n

    \"Do\u010dasn\u00e9
    Hlin\u00edkov\u00e9 profily slab\u011b reaguj\u00ed na siln\u00e1 magnetick\u00e1 pole<\/figcaption><\/figure>\n<\/p>\n

    Pokud um\u00edst\u00edm kus hlin\u00edku do siln\u00e9ho magnetick\u00e9ho pole, jak\u00e9 vytv\u00e1\u0159\u00ed nap\u0159\u00edklad p\u0159\u00edstroj magnetick\u00e9 rezonance nebo pr\u016fmyslov\u00fd elektromagnet, n\u011bkter\u00e9 jeho elektrony m\u00edrn\u011b zm\u011bn\u00ed svou orientaci. Tento jev se naz\u00fdv\u00e1 vyrovn\u00e1n\u00ed s magnetick\u00fdm polem.<\/p>\n

    Tato reakce je v\u0161ak slab\u00e1 a po vyjmut\u00ed magnetu okam\u017eit\u011b zmiz\u00ed. Na rozd\u00edl od \u017eeleza nebo niklu hlin\u00edk nez\u016fst\u00e1v\u00e1 zmagnetizovan\u00fd ani se s\u00e1m od sebe nemagnetizuje.<\/p>\n

    Kl\u00ed\u010dov\u00e9 charakteristiky<\/h3>\n

    Pod\u00edvejme se, jak se hlin\u00edk chov\u00e1:<\/p>\n

      \n
    • Line\u00e1rn\u00ed odezva:<\/strong> Magnetick\u00fd \u00fa\u010dinek roste p\u0159\u00edmo \u00fam\u011brn\u011b se silou magnetick\u00e9ho pole.<\/li>\n
    • \u017d\u00e1dn\u00fd zachovan\u00fd magnetismus:<\/strong> Jakmile vn\u011bj\u0161\u00ed pole zmiz\u00ed, hlin\u00edk se vr\u00e1t\u00ed do norm\u00e1lu.<\/li>\n
    • Nelze zjistit rukou:<\/strong> Ke zji\u0161t\u011bn\u00ed zm\u011bn pot\u0159ebujete citliv\u00e9 p\u0159\u00edstroje.<\/li>\n
    • \u017d\u00e1dn\u00e9 magnetick\u00e9 dom\u00e9ny:<\/strong> Hlin\u00edk nem\u00e1 oblasti se srovnan\u00fdmi atomy, kter\u00e9 se vyskytuj\u00ed u magnetick\u00fdch kov\u016f.<\/li>\n<\/ul>\n

      Srovn\u00e1n\u00ed magnetick\u00e9ho chov\u00e1n\u00ed<\/h3>\n\n\n\n\n\n\n\n
      Materi\u00e1l<\/th>\nMagnetick\u00e9 dom\u00e9ny?<\/th>\nPermanentn\u00ed magnetismus?<\/th>\nReakce na siln\u00e1 pole<\/th>\n<\/tr>\n<\/thead>\n
      Iron<\/td>\nAno<\/td>\nAno<\/td>\nSiln\u00fd<\/td>\n<\/tr>\n
      M\u011b\u010f<\/td>\nNe<\/td>\nNe<\/td>\nM\u00edrn\u00e9 odpuzov\u00e1n\u00ed<\/td>\n<\/tr>\n
      Hlin\u00edk<\/td>\nNe<\/td>\nNe<\/td>\nSlab\u00e1 p\u0159ita\u017elivost<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Proto se hlin\u00edk \u010dasto pou\u017e\u00edv\u00e1 v elektronick\u00e9m a v\u011bdeck\u00e9m prost\u0159ed\u00ed - neru\u0161\u00ed magnetick\u00e9 syst\u00e9my. Ale v oborech, kde je p\u0159esnost kritick\u00e1, je t\u0159eba br\u00e1t v \u00favahu i mal\u00e9 magnetick\u00e9 chov\u00e1n\u00ed.<\/p>\n

      <\/svg> Hlin\u00edk si po p\u016fsoben\u00ed siln\u00e9ho magnetu zachov\u00e1v\u00e1 magnetick\u00e9 vyrovn\u00e1n\u00ed.<\/b>False<\/span><\/p>

      Hlin\u00edk si po odstran\u011bn\u00ed vn\u011bj\u0161\u00edho pole nezachov\u00e1v\u00e1 \u017e\u00e1dn\u00fd magnetismus.<\/p><\/div>\n

      <\/svg> Magnetick\u00e1 odezva hlin\u00edku se zvy\u0161uje se siln\u011bj\u0161\u00edm magnetick\u00fdm polem.<\/b>Pravda<\/span><\/p>

      Hlin\u00edk vykazuje v\u00fdrazn\u011bj\u0161\u00ed magnetick\u00e9 vyrovn\u00e1n\u00ed v siln\u011bj\u0161\u00edch pol\u00edch, i kdy\u017e z\u016fst\u00e1v\u00e1 slab\u00e9 a do\u010dasn\u00e9.<\/p><\/div>\n

      Jak\u00e9 praktick\u00e9 \u00fa\u010dinky m\u00e1 paramagnetismus hlin\u00edku?<\/h2>\n

      Jedna v\u011bc je, \u017ee hlin\u00edk je paramagnetick\u00fd, ale m\u00e1 tento slab\u00fd magnetismus v\u00fdznam v re\u00e1ln\u00e9m sv\u011bt\u011b?<\/p>\n

      Paramagnetismus hlin\u00edku m\u00e1 ve v\u011bt\u0161in\u011b ka\u017edodenn\u00edch aplikac\u00ed mal\u00fd vliv, ale st\u00e1v\u00e1 se d\u016fle\u017eit\u00fdm ve v\u011bdeck\u00fdch p\u0159\u00edstroj\u00edch a vysoce p\u0159esn\u00fdch magnetick\u00fdch prost\u0159ed\u00edch.<\/strong><\/p>\n

      \"Hlin\u00edk
      Pou\u017e\u00edv\u00e1 se v citliv\u00fdch p\u0159\u00edstroj\u00edch d\u00edky p\u0159edv\u00eddateln\u00e9 magnetick\u00e9 odezv\u011b.<\/figcaption><\/figure>\n<\/p>\n

      V\u011bt\u0161ina lid\u00ed si magnetismu hlin\u00edku v\u016fbec nev\u0161imne. Ve stavebnictv\u00ed, p\u0159i v\u00fdrob\u011b obal\u016f, n\u00e1dob\u00ed a v doprav\u011b se hlin\u00edk chov\u00e1 jako nemagnetick\u00fd materi\u00e1l. Proto se pou\u017e\u00edv\u00e1 v mnoha pr\u016fmyslov\u00fdch odv\u011btv\u00edch.<\/p>\n

      Ve vysoce p\u0159esn\u00fdch oborech, jako jsou p\u0159\u00edstroje MRI, magnetick\u00e9 levita\u010dn\u00ed syst\u00e9my nebo laborato\u0159e \u010d\u00e1sticov\u00e9 fyziky, je v\u0161ak t\u0159eba br\u00e1t v \u00favahu paramagnetismus hlin\u00edku. M\u016f\u017ee m\u00edrn\u011b m\u011bnit magnetick\u00e1 pole nebo drobn\u011b reagovat, pokud je um\u00edst\u011bn v citliv\u00fdch p\u0159\u00edstroj\u00edch.<\/p>\n

      Na \u010dem z\u00e1le\u017e\u00ed<\/h3>\n\n\n\n\n\n\n\n\n
      Aplikace<\/th>\n\u00darove\u0148 magnetick\u00e9ho znepokojen\u00ed<\/th>\nD\u016fvod pou\u017eit\u00ed hlin\u00edku<\/th>\n<\/tr>\n<\/thead>\n
      Stavebn\u00ed r\u00e1my<\/td>\nN\u00edzk\u00e1<\/td>\nLehk\u00e9, nemagnetick\u00e9<\/td>\n<\/tr>\n
      Leteck\u00e9 a kosmick\u00e9 komponenty<\/td>\nN\u00edzk\u00e1<\/td>\nPom\u011br pevnosti a hmotnosti<\/td>\n<\/tr>\n
      Pouzdro nebo dr\u017e\u00e1ky MRI<\/td>\nSt\u0159edn\u00ed<\/td>\nP\u0159edv\u00eddateln\u00e1 magnetick\u00e1 odezva<\/td>\n<\/tr>\n
      Urychlova\u010de \u010d\u00e1stic<\/td>\nVysok\u00e1<\/td>\nPot\u0159eba minim\u00e1ln\u00edch z\u00e1sah\u016f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      I kdy\u017e je tento efekt mal\u00fd, je d\u00edky p\u0159edv\u00eddatelnosti reakce hlin\u00edku u\u017eite\u010dn\u00fd. In\u017een\u00fd\u0159i mohou p\u0159esn\u011b vypo\u010d\u00edtat, jak se bude hlin\u00edk chovat, co\u017e je v laborato\u0159\u00edch velmi d\u016fle\u017eit\u00e9.<\/p>\n

      <\/svg> Slab\u00fd magnetismus hlin\u00edku ovliv\u0148uje v\u011bt\u0161inu spot\u0159ebn\u00ed elektroniky.<\/b>False<\/span><\/p>

      Ve v\u011bt\u0161in\u011b spot\u0159ebn\u00ed elektroniky je magnetismus hlin\u00edku p\u0159\u00edli\u0161 slab\u00fd na to, aby m\u011bl n\u011bjak\u00fd vliv.<\/p><\/div>\n

      <\/svg> Paramagnetismus hlin\u00edku je d\u016fle\u017eit\u00fd pro v\u011bdeck\u00e9 p\u0159\u00edstroje.<\/b>Pravda<\/span><\/p>

      Slab\u00fd a p\u0159edv\u00eddateln\u00fd magnetismus hlin\u00edku z n\u011bj \u010din\u00ed spolehliv\u00fd materi\u00e1l pro p\u0159esn\u00e9 p\u0159\u00edstroje.<\/p><\/div>\n

      Z\u00e1v\u011br<\/h2>\n

      Hlin\u00edk nen\u00ed magnetick\u00fd v b\u011b\u017en\u00e9m slova smyslu. Nep\u0159itahuje magnety ani se nemagnetizuje. M\u00edsto toho je slab\u011b paramagnetick\u00fd - m\u00edrn\u011b reaguje na siln\u00e1 magnetick\u00e1 pole, ale pouze v dob\u011b, kdy je pole p\u0159\u00edtomno. D\u00edky tomu je u\u017eite\u010dn\u00e9 jak v b\u011b\u017en\u00e9m, tak v pokro\u010dil\u00e9m technick\u00e9m prost\u0159ed\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"

      Non-magnetic aluminum profiles ideal for precision environments Many people are surprised when a magnet doesn\u2019t stick to aluminum. They might even think something is wrong with the magnet-or the metal. But there\u2019s a reason for this behavior. Aluminum is not magnetic in the way most people understand magnetism. It does not attract magnets because it\u2019s […]<\/p>\n","protected":false},"author":6,"featured_media":5994,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-12586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/12586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=12586"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/12586\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/5994"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=12586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=12586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=12586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}