{"id":67927,"date":"2026-09-30T07:17:04","date_gmt":"2026-09-29T22:17:04","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=67927"},"modified":"2026-09-30T07:17:04","modified_gmt":"2026-09-29T22:17:04","slug":"oikean-kaden-ruuvisaanto-onko-magneetti-oikeasti-liikkuvaa-sahkoa-arjen-ilmioista-sahkomagnetismin-ihmeelliseen-maailmaan","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=67927&lang=fi","title":{"rendered":"[Oikean k\u00e4den ruuvis\u00e4\u00e4nt\u00f6] Onko magneetti oikeasti &#8220;liikkuvaa s\u00e4hk\u00f6\u00e4&#8221;?! Arjen ilmi\u00f6ist\u00e4 s\u00e4hk\u00f6magnetismin ihmeelliseen maailmaan"},"content":{"rendered":"<p style=\"text-align: center;\"><strong style=\"color: #339966;\">Terve, t\u00e4ss\u00e4 tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on yksi iso koe.<\/strong><\/p>\n<p><strong style=\"font-size: 1.75rem;\">S\u00e4hk\u00f6virran synnytt\u00e4m\u00e4 magneettikentt\u00e4: s\u00e4hk\u00f6n ja magnetismin salainen side paljastuu<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-50840 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-08-16-5.48.16.jpg\" alt=\"\" width=\"222\" height=\"221\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-08-16-5.48.16.jpg 814w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-08-16-5.48.16-300x298.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-08-16-5.48.16-150x150.jpg 150w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-08-16-5.48.16-768x762.jpg 768w\" sizes=\"auto, (max-width: 222px) 100vw, 222px\" \/><\/p>\n<p>Oletko koskaan leikkinyt lapsena hiekkalaatikolla ja ker\u00e4nnyt magneetilla rautahiekkaa? Moni muistaa varmasti, miten j\u00e4nnitt\u00e4v\u00e4\u00e4 tuo salaper\u00e4inen voima oli. Ent\u00e4 staattinen s\u00e4hk\u00f6, joka nostaa hiukset pystyyn, kun hankaat p\u00e4\u00e4t\u00e4si muovilevyll\u00e4? Sekin on tuttu ilmi\u00f6 koulun fysiikan tunneilta. Mutta milt\u00e4 tuntuisi kuulla, ett\u00e4 \u201dmagneetin voima\u201d ja \u201dstaattisen s\u00e4hk\u00f6n voima\u201d ovatkin oikeasti saman ilmi\u00f6n, s\u00e4hk\u00f6n, eri kasvoja?<\/p>\n<p>Aikoinaan useimmat tutkijat pitiv\u00e4t n\u00e4it\u00e4 kahta voimaa t\u00e4ysin erillisin\u00e4. Vuonna 1820 tanskalainen fyysikko Hans Christian \u00d8rsted kuitenkin teki l\u00f6yd\u00f6n, joka kirjoitti historian uusiksi. Kun h\u00e4n johti s\u00e4hk\u00f6virran johtimeen, sen vieress\u00e4 olleen kompassin neula k\u00e4\u00e4ntyikin osoittamaan aivan toiseen suuntaan kuin ennen. Se oli kuin taikuutta.<\/p>\n<p>L\u00f6yt\u00f6 todisti, ett\u00e4 \u201dliikkuva s\u00e4hk\u00f6\u201d eli s\u00e4hk\u00f6virta synnytt\u00e4\u00e4 magnetismia. Paikallaan pysyv\u00e4ll\u00e4 s\u00e4hk\u00f6ll\u00e4 (staattisella s\u00e4hk\u00f6ll\u00e4) ei ole magnetismin kanssa mit\u00e4\u00e4n tekemist\u00e4, mutta heti kun s\u00e4hk\u00f6 l\u00e4htee liikkeelle, se alkaa k\u00e4ytt\u00e4yty\u00e4 magneettisesti. T\u00e4m\u00e4 yll\u00e4tt\u00e4v\u00e4 havainto paljasti, ett\u00e4 s\u00e4hk\u00f6 ja magnetismi, jotka oli luultu toisistaan riippumattomiksi voimiksi, ovat itse asiassa kuin saman kolikon kaksi puolta. Tutustutaanpa nyt lakiin, joka avaa t\u00e4m\u00e4n yhteyden, ja siihen, mihin sit\u00e4 k\u00e4ytet\u00e4\u00e4n.<\/p>\n<h3><strong>Mik\u00e4 on magneettikentt\u00e4?<\/strong><\/h3>\n<p>Aloitetaan <strong>magneettikent\u00e4st\u00e4<\/strong>, jota ilman magnetismin voimien ymm\u00e4rt\u00e4minen on mahdotonta. Magneettikentt\u00e4 on avaruuden alue, jossa magneettiset voimat vaikuttavat, ja sit\u00e4 syntyy magneettien ja s\u00e4hk\u00f6virtojen ymp\u00e4rille. Kun viet rautahiekkaa magneetin l\u00e4helle, sit\u00e4 kertyy tihe\u00e4sti juuri magneetin pohjois- ja etel\u00e4napaan. Syy on se, ett\u00e4 magneetti luo ymp\u00e4rilleen magneettikent\u00e4n, joka vet\u00e4\u00e4 hiekkaa puoleensa.<\/p>\n<p>Magneettien ihmeellinen voima tunnettiin jo muinaisina aikoina. Sanotaan, ett\u00e4 englannin sana \u201dmagnet\u201d juontuu Turkissa sijaitsevasta Magnesian alueesta, josta luonnonmagneetteja l\u00f6ydettiin runsaasti. Magneeteilla on kaksi napaa, pohjois- ja etel\u00e4napa, ja aivan kuten s\u00e4hk\u00f6varauksilla, samanlaiset navat hylkiv\u00e4t toisiaan ja erilaiset vet\u00e4v\u00e4t toisiaan puoleensa.<\/p>\n<p>Magneettisten voimien toimintaa voi havainnollistaa <strong>magneettikentt\u00e4viivoilla<\/strong>. Kun asetat kompassin sauvamagneetin l\u00e4helle, neula osoittaa aina s\u00e4\u00e4nn\u00f6llist\u00e4 suuntaa. Jos piirr\u00e4t viivan seuraten neulan pohjoisnavan osoittamaa suuntaa, n\u00e4et kauniin kaarevan k\u00e4yr\u00e4n, joka l\u00e4htee pohjoisnavasta ja palaa etel\u00e4napaan. T\u00e4t\u00e4 viivaa kutsutaan magneettikentt\u00e4viivaksi. Mit\u00e4 tihe\u00e4mm\u00e4ss\u00e4 viivat ovat, sit\u00e4 voimakkaampi magneettikentt\u00e4 on.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-27782 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/05\/IMG_0255.jpg\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/05\/IMG_0255.jpg 640w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/05\/IMG_0255-300x225.jpg 300w\" alt=\"\" width=\"307\" height=\"230\" \/><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"ARYWFE4vjw\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=27780\">\u30c8\u30f3\u30c8\u30f3\u53e9\u304f\u3060\u3051\u3067\u6d6e\u304b\u3073\u4e0a\u304c\u308b\u3001\u78c1\u529b\u7dda\u306e\u3075\u3057\u304e\u306a\u6a21\u69d8\uff08\u78c1\u754c\u306e\u89b3\u5bdf\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u30c8\u30f3\u30c8\u30f3\u53e9\u304f\u3060\u3051\u3067\u6d6e\u304b\u3073\u4e0a\u304c\u308b\u3001\u78c1\u529b\u7dda\u306e\u3075\u3057\u304e\u306a\u6a21\u69d8\uff08\u78c1\u754c\u306e\u89b3\u5bdf\uff09\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=27780&amp;embed=true#?secret=7znmlrHw92#?secret=ARYWFE4vjw\" data-secret=\"ARYWFE4vjw\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<h3><strong>Oikean k\u00e4den ruuvis\u00e4\u00e4nt\u00f6: n\u00e4in s\u00e4hk\u00f6virta synnytt\u00e4\u00e4 magneettikent\u00e4n<\/strong><\/h3>\n<p>\u00d8rstedin kokeesta selvisi, ett\u00e4 s\u00e4hk\u00f6virta luo magneettikent\u00e4n. Mutta millainen tuo kentt\u00e4 oikein on?<\/p>\n<p>Kun suoran johtimen l\u00e4pi kulkee virta, sen ymp\u00e4rille muodostuu py\u00f6rteinen magneettikentt\u00e4. Kent\u00e4n suunnan saat selville n\u00e4in: osoita oikean k\u00e4den peukalolla virran suuntaan, ja muut sormet kiertyv\u00e4t samaan suuntaan kuin magneettikentt\u00e4. Se on kuin <strong>oikeakierteist\u00e4 ruuvia<\/strong> kiert\u00e4isi: peukalon liikesuunta (virta) ja kiertosuunta (magneettikentt\u00e4) kulkevat k\u00e4si k\u00e4dess\u00e4. T\u00e4t\u00e4 ihmeellist\u00e4 s\u00e4\u00e4nt\u00f6\u00e4 kutsutaan <strong>oikean k\u00e4den ruuvis\u00e4\u00e4nn\u00f6ksi<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44682 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/fbc25fef24b71358cd8605adaa7ae761.jpg\" sizes=\"auto, (max-width: 393px) 100vw, 393px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/fbc25fef24b71358cd8605adaa7ae761.jpg 1894w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/fbc25fef24b71358cd8605adaa7ae761-300x183.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/fbc25fef24b71358cd8605adaa7ae761-1024x626.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/fbc25fef24b71358cd8605adaa7ae761-768x470.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/fbc25fef24b71358cd8605adaa7ae761-1536x939.jpg 1536w\" alt=\"\" width=\"393\" height=\"240\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44641 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/c1889c020d4e60c5fc04592b4e06667e.jpg\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/c1889c020d4e60c5fc04592b4e06667e.jpg 1310w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/c1889c020d4e60c5fc04592b4e06667e-300x264.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/c1889c020d4e60c5fc04592b4e06667e-1024x900.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/01\/c1889c020d4e60c5fc04592b4e06667e-768x675.jpg 768w\" alt=\"\" width=\"432\" height=\"380\" \/><\/p>\n<p>Virran synnytt\u00e4m\u00e4n magneettikent\u00e4n voimakkuutta puolestaan kuvaa seuraava laki:<\/p>\n<p style=\"text-align: center;\"><strong><span style=\"font-size: 1.25rem;\">H = I \/ 2\u03c0r<\/span><\/strong><\/p>\n<p>Magneettikent\u00e4n voimakkuus (H) on <strong>suoraan verrannollinen<\/strong> virran suuruuteen ja <strong>k\u00e4\u00e4nt\u00e4en verrannollinen<\/strong> et\u00e4isyyteen johtimesta (r). Toisin sanoen mit\u00e4 suurempi virta ja mit\u00e4 l\u00e4hemp\u00e4n\u00e4 johdinta olet, sit\u00e4 voimakkaampi kentt\u00e4 on.<\/p>\n<h3><strong>S\u00e4hk\u00f6virralla magneetiksi: s\u00e4hk\u00f6magneetti<\/strong><\/h3>\n<p>T\u00e4m\u00e4 laki, jonka mukaan s\u00e4hk\u00f6virta synnytt\u00e4\u00e4 magneettikent\u00e4n, on ahkerassa k\u00e4yt\u00f6ss\u00e4 ymp\u00e4rill\u00e4mme. Tunnetuin esimerkki on <strong>s\u00e4hk\u00f6magneetti<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2300 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/02\/b82fc12fdbe5c0871901b5b3f87f90af.jpg\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-02-04 21.18.42\" width=\"210\" height=\"161\" \/><\/p>\n<p>Magneettikentt\u00e4\u00e4 syntyy vain, kun virta kulkee, ja kun virta katkaistaan, kentt\u00e4 katoaa. Voisiko t\u00e4m\u00e4n ominaisuuden avulla tehd\u00e4 vaikka supervoimakkaan magneetin?<\/p>\n<p>Avain t\u00e4h\u00e4n on johtimesta kierretty <strong>k\u00e4\u00e4mi<\/strong>. Muistatko \u00e4sken opitun ruuvis\u00e4\u00e4nn\u00f6n? Kun ympyr\u00e4n muotoon taivutetun johtimen l\u00e4pi kulkee virta, jokaisesta kohdasta syntyv\u00e4t magneettikent\u00e4t osoittavat k\u00e4\u00e4min keskell\u00e4 samaan suuntaan ja vahvistavat toisiaan. Jos kierroksia on viel\u00e4 monta p\u00e4\u00e4llekk\u00e4in, keskelle syntyy hyvin voimakas magneettikentt\u00e4, ja k\u00e4\u00e4mi toimii kuin aito sauvamagneetti.<\/p>\n<p>My\u00f6s s\u00e4hk\u00f6magneetin kent\u00e4n suunnan voi p\u00e4\u00e4tell\u00e4 helposti oikean k\u00e4den s\u00e4\u00e4nn\u00f6ll\u00e4: kun taivutat sormet etusormesta pikkurilliin virran kulkusuuntaan, peukalo osoittaa magneettikent\u00e4n suuntaa. S\u00e4hk\u00f6magneetit tekev\u00e4t t\u00f6it\u00e4 monessa paikassa: ne nostavat nosturilla romurautaa ja lajittelevat kierr\u00e4tyslaitoksilla alumiini- ja ter\u00e4spurkit toisistaan.<\/p>\n<h3><strong>Onko magneetin salaisuus \u201dmolekyylivirroissa\u201d?<\/strong><\/h3>\n<p>Mutta miksi arkiset magneettimme ylip\u00e4\u00e4t\u00e4\u00e4n synnytt\u00e4v\u00e4t magneettikent\u00e4n?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-19770 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/09\/5a503de6d69b62d2ed2f21cc9f629e01-300x279.jpg\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/09\/5a503de6d69b62d2ed2f21cc9f629e01-300x279.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/09\/5a503de6d69b62d2ed2f21cc9f629e01.jpg 400w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-09-18 20.33.13\" width=\"300\" height=\"279\" \/><\/p>\n<p>T\u00e4m\u00e4n arvoituksen ratkaisemiseksi tutkijat k\u00e4\u00e4ntyiv\u00e4t atomien maailmaan. Atomin ymp\u00e4rill\u00e4 negatiivisesti varautuneet elektronit kiert\u00e4v\u00e4t ytimen ymp\u00e4rill\u00e4 kuin planeetat. Elektronin liike on sama asia kuin pienen ympyr\u00e4n muotoisen virran kulku.<\/p>\n<p>T\u00e4m\u00e4n ajatuksen vei pisimm\u00e4lle ranskalainen tiedemies Andr\u00e9-Marie Amp\u00e8re. H\u00e4n p\u00e4\u00e4tteli, ett\u00e4 magneetin sis\u00e4ll\u00e4 kiert\u00e4\u00e4 lukematon m\u00e4\u00e4r\u00e4 pieni\u00e4 rengasvirtoja, jotka ovat asettuneet siististi samaan suuntaan, ja siksi magneetti kokonaisuutena synnytt\u00e4\u00e4 voimakkaan magneettikent\u00e4n. T\u00e4t\u00e4 kutsutaan <strong>molekyylivirtojen teoriaksi<\/strong>.<\/p>\n<p>Rautahiekka ja naulat tarttuvat magneettiin, koska ulkoinen magneettikentt\u00e4 saa niiden sis\u00e4ll\u00e4 olevien atomien rengasvirrat k\u00e4\u00e4ntym\u00e4\u00e4n tilap\u00e4isesti samaan suuntaan, jolloin niist\u00e4 itsest\u00e4\u00e4nkin tulee magneetteja. Ilmi\u00f6t\u00e4 kutsutaan <strong>magnetoitumiseksi<\/strong>.<\/p>\n<p>T\u00e4m\u00e4n ajatuksen avulla voimme selitt\u00e4\u00e4 monia arjessa kohtaamiamme magneettisia ilmi\u00f6it\u00e4. Esimerkiksi maapallon pohjoisnavan ja etel\u00e4navan v\u00e4lille ulottuva <strong>maan magneettikentt\u00e4<\/strong> selitet\u00e4\u00e4n \u201ddynamoteorialla\u201d: maan sis\u00e4ll\u00e4 oleva sulanut metalli py\u00f6rii planeetan mukana ja kuljettaa vapaita elektroneja, jolloin syntyy s\u00e4hk\u00f6virta, joka puolestaan luo magneettikent\u00e4n. My\u00f6s t\u00e4m\u00e4 j\u00e4ttim\u00e4inen magneetti, maapallo, perustuu siis pohjimmiltaan s\u00e4hk\u00f6virtaan.<\/p>\n<p>S\u00e4hk\u00f6 ja magnetismi n\u00e4ytt\u00e4v\u00e4t ensi silm\u00e4yksell\u00e4 t\u00e4ysin erilaisilta ilmi\u00f6ilt\u00e4, mutta ne ovat tiiviisti sidoksissa toisiinsa. T\u00e4m\u00e4 \u201ds\u00e4hk\u00f6n ja magnetismin yhdistyminen\u201d oli t\u00e4rke\u00e4 l\u00f6yt\u00f6, joka johti aikanaan aina Einsteinin suhteellisuusteoriaan asti. Ilman t\u00e4t\u00e4 fysiikan lakia meill\u00e4 ei olisi arkeemme kuuluvia s\u00e4hk\u00f6laitteita.<\/p>\n<p>\u203b T\u00e4m\u00e4 artikkeli on kirjoitettu liitteeksi kirjaani \u201dLukion fysiikan kertauskirja aikuisille\u201d (japaniksi \u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f). Voit lukea t\u00e4\u00e4lt\u00e4 my\u00f6s muita artikkeleita.<\/p>\n<p style=\"text-align: center;\">\u3010<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">Takaisin erikoissivulle<\/a>\u3011<\/p>\n<p><a href=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"auto, (max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><\/a><\/p>\n<p style=\"text-align: center;\">\u300e<a href=\"https:\/\/amzn.to\/3WuqOf8\">Lukion fysiikan kertauskirja aikuisille<\/a>\u300f(Amazon-linkki)<\/p>\n<h3>Yhteydenotot ja toimeksiannot<\/h3>\n<p>Tuodaan tiede l\u00e4hemm\u00e4s arkea ja tehd\u00e4\u00e4n siit\u00e4 hauskaa! Blogissa kerrotaan selke\u00e4sti, miten kotona voi tehd\u00e4 hauskoja tiedekokeita, ja jaetaan vinkkej\u00e4 onnistumiseen. Selaile ja etsi rohkeasti!<br \/>\n\u30fbBlogin yll\u00e4pit\u00e4j\u00e4st\u00e4 Ken Kuwakosta voit lukea <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbToimeksiannot (kirjoitusty\u00f6t, luennot, kokeilukurssit, TV-ohjelmien asiantuntijaty\u00f6 ja esiintymiset jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbArtikkeleiden p\u00e4ivitystiedot julkaistaan <a href=\"https:\/\/x.com\/kuwako\">X:ss\u00e4<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Tieden\u00e4ytelm\u00e4-kanavalla<\/a> julkaistaan koevideoita!<\/p>\n<h3>\uff19\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=23985\">\u7d19\u30b3\u30c3\u30d7\u3000\u30b8\u30e3\u30a4\u30ed\u30ed\u30b1\u30c3\u30c8\u3092\u4f5c\u308d\u3046\uff01<\/a><\/p>\r\n<p style=\"text-align: center;\"><img class=\"alignnone wp-image-67257\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-07-15.02.37.jpeg\" alt=\"\" width=\"229\" height=\"226\" \/><\/p>\r\n\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>\uff19\u670825\u65e5\uff08\u91d1\uff0921:00\u301c\u3000<a href=\"https:\/\/bangumi.org\/tv_events\/AmHQQg-w0AM?overwrite_area=23\">\u304b\u307e\u3044\u305f\u3061\u306e\u77ac\u9593\u56de\u7b54\uff01<\/a>\u306b\u3066\u3001\u79d1\u5b66\u76e3\u4fee\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/li>\r\n \t<li>\uff11\uff10\u6708\uff11\uff10\u65e5\uff08\u571f\uff0911:15~12:00\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=66205\">\u5343\u8449\u5e02\u79d1\u5b66\u30d5\u30a7\u30b9\u30bf2026\u300c\u6851\u5b50\u5148\u751f\u306e\u56de\u8ee2\u79d1\u5b66\u30b7\u30e7\u30fc\u300d\u306b\u3066\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u3092\u884c\u3044\u307e\u3059<\/a>\u3002\r\n<img class=\"alignnone wp-image-66207 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-08-05-5.24.40.jpeg\" sizes=\"(max-width: 419px) 100vw, 419px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-05-5.24.40.jpeg 1578w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-05-5.24.40-300x214.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-05-5.24.40-1024x731.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-05-5.24.40-768x548.jpeg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-05-5.24.40-1536x1096.jpeg 1536w\" alt=\"\" width=\"419\" height=\"299\" \/><\/li>\r\n \t<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=64825\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n \t<li>\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002\r\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09\r\n<img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><\/strong><\/li>\r\n \t<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002\r\n<img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\">\u3010\u65e5\u672c\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\u3000\u3010\u82f1\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a><\/p>\r\n\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Terve, t\u00e4ss\u00e4 tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on yksi iso koe. S\u00e4hk\u00f6virran synnytt\u00e4m\u00e4 magneettikentt\u00e4: s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":50840,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1630],"tags":[],"class_list":["post-67927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack-related-posts":[{"id":55161,"url":"https:\/\/phys-edu.net\/wp\/?p=55161&lang=fi","url_meta":{"origin":67927,"position":0},"title":"Miksi paino liikkuu? Opi s\u00e4hk\u00f6n ihmeist\u00e4 ja maadoituksen salaisuudesta \u201cS\u00e4hk\u00f6staattisen kellon\u201d avulla","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670830\u65e5","format":false,"excerpt":"Olen Ken Kuwako, tiedekouluttaja. Joka p\u00e4iv\u00e4 on ko\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-13-5.23.29.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-13-5.23.29.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-13-5.23.29.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-13-5.23.29.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-13-5.23.29.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-13-5.23.29.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":54734,"url":"https:\/\/phys-edu.net\/wp\/?p=54734&lang=fi","url_meta":{"origin":67927,"position":1},"title":"Hanka vain nen\u00e4liinalla! 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