{"id":68616,"date":"2026-10-19T04:31:53","date_gmt":"2026-10-18T19:31:53","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=68616"},"modified":"2026-10-19T04:31:53","modified_gmt":"2026-10-18T19:31:53","slug":"neula-liikkuu-ilman-paristoa-kelan-ja-magneetin-ihmeellinen-koe-sahkomagneettinen-induktio","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=68616&lang=fi","title":{"rendered":"Neula liikkuu ilman paristoa? Kelan ja magneetin ihmeellinen koe (s\u00e4hk\u00f6magneettinen induktio)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on koe.<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14px;\">Mukana ei ole paristoa eik\u00e4 pistorasiaa, mutta kun magneettia vied\u00e4\u00e4n k\u00e4\u00e4min l\u00e4helle, johtimeen syntyy s\u00e4hk\u00f6virta. Vaikka olen n\u00e4hnyt t\u00e4m\u00e4n monta kertaa, huudahdan silti joka kerta: &#8220;H\u00e4h?!&#8221; T\u00e4t\u00e4 ilmi\u00f6t\u00e4 kutsutaan s\u00e4hk\u00f6magneettiseksi induktioksi (japaniksi denji y\u016bd\u014d). Kun magneettia vied\u00e4\u00e4n k\u00e4\u00e4mi\u00e4 kohti, virtaa kulkee. Kun magneetti pys\u00e4ytet\u00e4\u00e4n, virta lakkaa, ja kun magneettia vedet\u00e4\u00e4n pois, virta alkaa taas kulkea. Eik\u00f6 olekin ihmeellist\u00e4, ett\u00e4 oman k\u00e4den liike-energia muuttuu s\u00e4hk\u00f6energiaksi? T\u00e4ss\u00e4 artikkelissa esittelen kokeen, jonka avulla p\u00e4\u00e4set itse kokemaan s\u00e4hk\u00f6magneettisen induktion.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68607 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.26.jpeg\" alt=\"\" width=\"467\" height=\"428\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.26.jpeg 1432w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.26-300x275.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.26-1024x938.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.26-768x704.jpeg 768w\" sizes=\"auto, (max-width: 467px) 100vw, 467px\" \/><\/p>\n<h3>Aloitetaan opettajan demonstraatiolla<\/h3>\n<p>Ensin opettaja teki demonstraatiokokeen. Siin\u00e4 k\u00e4ytettiin paskal-johdinta (japanilaisissa kouluissa yleinen pehme\u00e4 kuparijohdin). Johdin kytkettiin galvanometriin (herkk\u00e4\u00e4n mittariin, jolla voi havaita aivan pieni\u00e4 virtoja), ja johtimen l\u00e4hell\u00e4 liikuteltiin magneettia edestakaisin.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68606\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.15.jpeg\" alt=\"\" width=\"390\" height=\"237\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.15.jpeg 1780w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.15-300x183.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.15-1024x624.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.15-768x468.jpeg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.15-1536x935.jpeg 1536w\" sizes=\"auto, (max-width: 390px) 100vw, 390px\" \/><\/p>\n<p>Seuraavaksi johdin kierrettiin kelaksi, ja koe tehtiin samalla tavalla. Kiinnit\u00e4 huomiota siihen, miten galvanometrin neulan heilahdus eroaa, kun k\u00e4yt\u00f6ss\u00e4 on pelkk\u00e4 suora johdin ja kun k\u00e4yt\u00f6ss\u00e4 on kela.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68605 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.01.jpeg\" alt=\"\" width=\"389\" height=\"269\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.01.jpeg 1498w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.01-300x207.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.01-1024x708.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.24.01-768x531.jpeg 768w\" sizes=\"auto, (max-width: 389px) 100vw, 389px\" \/><\/p>\n<h3>Oppilaiden vuoro: kokeile itse!<\/h3>\n<p>Sen j\u00e4lkeen oppilaat p\u00e4\u00e4siv\u00e4t tekem\u00e4\u00e4n kokeen omin k\u00e4sin.<\/p>\n<p>Tarvitset<\/p>\n<p>\u30fbpaskal-johdinta<br \/>\n\u30fbkelan<br \/>\n\u30fbsauvamagneetin<br \/>\n\u30fbgalvanometrin<\/p>\n<p>Ty\u00f6ohje<\/p>\n<p>\uff11\u3000Liikuta magneettia kelaa kohti ja siit\u00e4 poisp\u00e4in ja seuraa, miten galvanometrin neula liikkuu.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68608 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.34.jpeg\" alt=\"\" width=\"453\" height=\"401\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.34.jpeg 1344w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.34-300x265.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.34-1024x905.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.34-768x679.jpeg 768w\" sizes=\"auto, (max-width: 453px) 100vw, 453px\" \/><\/p>\n<p>\uff12\u3000Muuta magneetin liikett\u00e4 ja tee koe uudelleen (liikuta sit\u00e4 nopeasti ja hitaasti).<\/p>\n<p>\uff13\u3000Vaihda kela sellaiseen, jossa on eri m\u00e4\u00e4r\u00e4 kierroksia, ja toista koe.<\/p>\n<p>\uff14\u3000Aseta kaksi magneettia p\u00e4\u00e4llekk\u00e4in ja toista koe.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68609 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.45.jpeg\" alt=\"\" width=\"461\" height=\"439\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.45.jpeg 1290w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.45-300x286.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.45-1024x975.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-4.23.45-768x731.jpeg 768w\" sizes=\"auto, (max-width: 461px) 100vw, 461px\" \/><\/p>\n<p><iframe loading=\"lazy\" title=\"\u96fb\u6c60\u304c\u306a\u3044\u306e\u306b\u91dd\u304c\u632f\u308c\u308b\uff1f\u30b3\u30a4\u30eb\u3068\u78c1\u77f3\u306e\u4e0d\u601d\u8b70\u306a\u5b9f\u9a13\uff08\u96fb\u78c1\u8a98\u5c0e\u306e\u5b9f\u9a13\uff09\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/ollCr2KyZ7w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h3>Mit\u00e4 kokeesta kannattaa huomata<\/h3>\n<p>Kun teet kokeen, kiinnit\u00e4 huomiota seuraaviin asioihin.<\/p>\n<p>Mihin suuntaan neula heilahtaa, kun magneettia vied\u00e4\u00e4n l\u00e4hemm\u00e4s, ja mihin, kun se vedet\u00e4\u00e4n kauemmas? Yleens\u00e4 suunnat ovat vastakkaiset. Kun magneetti pys\u00e4ytet\u00e4\u00e4n, neula palaa nollaan. Virta kulkee siis vain silloin, kun kelan sis\u00e4ll\u00e4 oleva magneettikentt\u00e4 (tila, jossa magneetin voima vaikuttaa) muuttuu.<\/p>\n<p>Kun magneettia liikutetaan nopeasti, neula heilahtaa voimakkaammin. Mit\u00e4 nopeammin magneettikentt\u00e4 muuttuu, sit\u00e4 suurempi on syntyv\u00e4 virta (indusoitunut virta). Neulan heilahdus kasvaa my\u00f6s silloin, kun kelan kierrosten m\u00e4\u00e4r\u00e4\u00e4 lis\u00e4t\u00e4\u00e4n tai kun magneetteja pinotaan kaksi p\u00e4\u00e4llekk\u00e4in voiman kasvattamiseksi. Jos teet ensin arvauksen ja vasta sitten kokeen, tulos tuntuu paljon hauskemmalta!<\/p>\n<h3>S\u00e4hk\u00f6magneettinen induktio arjen apuna<\/h3>\n<p>T\u00e4m\u00e4 periaate pit\u00e4\u00e4 yll\u00e4 arkeamme. Voimalaitosten generaattorit tuottavat s\u00e4hk\u00f6\u00e4 magneettien ja kelojen suhteellisen liikkeen avulla. Py\u00f6r\u00e4n dynamo, kosketuksettomat IC-kortit, joilla maksetaan ja kulkuoikeudet tarkistetaan, sek\u00e4 \u00e4lypuhelinten langaton lataus hy\u00f6dynt\u00e4v\u00e4t kaikki s\u00e4hk\u00f6magneettista induktiota. Pieni koe luokkahuoneessa liittyy siis suoraan yhteiskunnan suuriin toimintoihin.<\/p>\n<h3>Yhteydenotot ja tilaukset<\/h3>\n<p>Tuodaan tieteen ihmeet ja hauskuus l\u00e4hemm\u00e4s arkea! Kokoan t\u00e4lle sivustolle hauskoja tiedekokeita, joita voi tehd\u00e4 kotona, sek\u00e4 vinkkej\u00e4 niiden onnistumiseen. Selaile ja etsi rohkeasti!<br \/>\n\u30fbTieteen ideapankin sis\u00e4ll\u00f6st\u00e4 on tehty kirja. Lue lis\u00e4\u00e4 <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbSivuston 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\u30fbKaikenlaiset ty\u00f6tilaukset (kirjoittaminen, luennot, kokeilutunnit, 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\">\u30fbP\u00e4ivitystiedot artikkeleista jaetaan <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\">Tieteen ideakanavalla<\/a> julkaistaan koevideoita!<\/p>\n<h3>\uff11\uff10\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=67937\">\u7d19\u30b3\u30c3\u30d7\u30b8\u30e3\u30a4\u30ed\u98db\u884c\u6a5f\u3092\u4f5c\u308d\u3046\uff01<\/a><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=67937\"><img class=\"alignnone  wp-image-68171\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/%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%88-2026-10-06-8.34.43.jpeg\" sizes=\"auto, (max-width: 1188px) 100vw, 1188px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43.jpeg 1188w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43-300x171.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43-1024x584.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43-768x438.jpeg 768w\" alt=\"\" width=\"397\" height=\"226\" \/><\/a><\/p>\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<li>10\u670827\u65e5\uff08\u706b\uff09 \u30c6\u30ec\u30d3\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n<li>11\u670827\u65e5\uff08\u91d1\uff09\u3000\u30c6\u30ec\u30d3\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n<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<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<br \/><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<br \/><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<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<br \/><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<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n<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<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<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<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<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<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<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>\r\n","protected":false},"excerpt":{"rendered":"<p>Olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on koe. Mukana ei ole paristoa eik\u00e4 pistorasiaa, mutta kun magneet [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":68607,"comment_status":"closed","ping_status":"closed","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-68616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack-related-posts":[{"id":55627,"url":"https:\/\/phys-edu.net\/wp\/?p=55627&lang=fi","url_meta":{"origin":68616,"position":0},"title":"Miksi magneetti pys\u00e4ytt\u00e4\u00e4 sen? Paljasta \u201cmuutosta vihaavan s\u00e4hk\u00f6n\u201d salaisuus k\u00e4\u00e4mikokeen avulla!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u67089\u65e5","format":false,"excerpt":"Olen Ken Kuwako, tiedekouluttajanne. Joka p\u00e4iv\u00e4 on\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\/2016\/01\/addf2aebe79651e48b6a50a018791333.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":58160,"url":"https:\/\/phys-edu.net\/wp\/?p=58160&lang=fi","url_meta":{"origin":68616,"position":1},"title":"Kolikko kaatuu koskematta ja alumiinifolio leijuu ilmassa!? Koe py\u00f6rrevirrat kotona! (Faradayn p\u00f6yt\u00e4)","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u67081\u65e5","format":false,"excerpt":"Olen tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on koe\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\/2019\/12\/9c3334f410d485f41926d617855f4ff2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/12\/9c3334f410d485f41926d617855f4ff2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/12\/9c3334f410d485f41926d617855f4ff2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/12\/9c3334f410d485f41926d617855f4ff2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":64877,"url":"https:\/\/phys-edu.net\/wp\/?p=64877&lang=fi","url_meta":{"origin":68616,"position":2},"title":"Py\u00f6rrevirrat ampaisevat metallirenkaita ilmaan \u2014 s\u00e4hk\u00f6magneettisen induktion ihme Tsukuban Expo-keskuksessa","author":"\u6851\u5b50 \u7814","date":"2026\u5e746\u670827\u65e5","format":false,"excerpt":"Olen tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on uus\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\/2021\/04\/2770ab3caf7f7f3972c6729f28b93f48.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/2770ab3caf7f7f3972c6729f28b93f48.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/2770ab3caf7f7f3972c6729f28b93f48.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/2770ab3caf7f7f3972c6729f28b93f48.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":52792,"url":"https:\/\/phys-edu.net\/wp\/?p=52792&lang=fi","url_meta":{"origin":68616,"position":3},"title":"Rakenna itse maailman ensimm\u00e4inen moottori \u2013 Faradayn moottori ja historiallinen koe odottaa!","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670821\u65e5","format":false,"excerpt":"Tervehdys! Olen luonnontieteiden valmentaja Ken Ku\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\/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%88-2025-08-18-6.06.16.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/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%88-2025-08-18-6.06.16.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/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%88-2025-08-18-6.06.16.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/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%88-2025-08-18-6.06.16.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":61579,"url":"https:\/\/phys-edu.net\/wp\/?p=61579&lang=fi","url_meta":{"origin":68616,"position":4},"title":"S\u00e4hk\u00f6n takaa-ajo n\u00e4kyv\u00e4ksi! Koe vaihtovirtapiirin mysteeri Scratchilla \u2013 Vaihesiirtym\u00e4n salaisuus","author":"\u6851\u5b50 \u7814","date":"2026\u5e743\u670817\u65e5","format":false,"excerpt":"Olen Ken Kuwako, tiedevalmentajasi. Jokainen p\u00e4iv\u00e4\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\/2019\/04\/82044aec2c7a705ed49a63a73f3039a4.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/82044aec2c7a705ed49a63a73f3039a4.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/82044aec2c7a705ed49a63a73f3039a4.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/82044aec2c7a705ed49a63a73f3039a4.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":68570,"url":"https:\/\/phys-edu.net\/wp\/?p=68570&lang=fi","url_meta":{"origin":68616,"position":5},"title":"Purimme moottorin: sis\u00e4ll\u00e4 oli vain kela ja magneetti! Py\u00f6rimisvoiman salaisuus","author":"\u6851\u5b50 \u7814","date":"2026\u5e7410\u670818\u65e5","format":false,"excerpt":"Olen tiedekouluttaja Ken Kuwako. 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