{"id":59494,"date":"2026-01-27T04:54:40","date_gmt":"2026-01-26T19:54:40","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=59494"},"modified":"2026-01-27T04:54:40","modified_gmt":"2026-01-26T19:54:40","slug":"tieteen-selitys-liman-hytinalle-miksi-slime-on-niin-pomppivaa-ja-mika-on-sahkoslime","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=59494&lang=fi","title":{"rendered":"Tieteen selitys liman hytin\u00e4lle! Miksi slime on niin pomppivaa \u2013 ja mik\u00e4 on \u201cs\u00e4hk\u00f6slime\u201d?"},"content":{"rendered":"<p style=\"text-align: center;\"><b style=\"color: #339966;\">Tervehdys! Olen tiedevalmentaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on uusi koe.<\/b><\/p>\n<p>&#8220;Tahmeaa, hyllyv\u00e4\u00e4 ja ihanan viile\u00e4\u00e4!&#8221;<\/p>\n<p>T\u00e4m\u00e4 mystinen tunne saa kaikki alakoululaisista yl\u00e4astelaisiin hullaantumaan. Kyseess\u00e4 on tietysti taika-aine nimelt\u00e4 lima \u2013 eli kotoisasti slime. Se on fysiikan ja kemian ty\u00f6tuntien ikisuosikki, mutta olisi s\u00e4\u00e4li j\u00e4tt\u00e4\u00e4 se vain mukavaksi leikiksi.<\/p>\n<p>Todellisuudessa lima on portti kemian ihmeelliseen polymeerien maailmaan. T\u00e4ss\u00e4 artikkelissa sukulaisemme liman dramaattiseen syntyprosessiin ja kokeilemme jotain todella s\u00e4v\u00e4ytt\u00e4v\u00e4\u00e4: muutamme liman s\u00e4hk\u00f6njohtimeksi. Tehd\u00e4\u00e4n tiedett\u00e4!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-59477 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.11.jpeg\" alt=\"\" width=\"462\" height=\"382\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.11.jpeg 776w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.11-300x248.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.11-768x635.jpeg 768w\" sizes=\"auto, (max-width: 462px) 100vw, 462px\" \/><\/p>\n<h3>N\u00e4in valmistat t\u00e4ydellist\u00e4 limaa<\/h3>\n<p>Aloitetaan perusreseptill\u00e4. Salaisuus piilee t\u00e4ydellisess\u00e4 suhteessa.<\/p>\n<p>Tarvikkeet:<\/p>\n<ul>\n<li><a href=\"https:\/\/amzn.to\/3WspEkt\">PVA-liimaa (askarteluliimaa) 50 g<\/a><\/li>\n<li>Noin 60-asteista vett\u00e4 50 g (L\u00e4mmin vesi auttaa sekoittumisessa. Suhde liimaan on 1:1)<\/li>\n<li><a href=\"https:\/\/amzn.to\/3LxgbSI\">Booraksia 20 g<\/a><\/li>\n<li>Vett\u00e4 200 g (booraksiliuosta varten)<\/li>\n<li>3 kertak\u00e4ytt\u00f6mukia, vaaka ja sekoitustikku<\/li>\n<li>Vesiv\u00e4rej\u00e4 tai elintarvikev\u00e4ri\u00e4<\/li>\n<\/ul>\n<p>PVA-liimaa ja booraksia l\u00f6yd\u00e4t usein askartelukaupoista tai apteekeista.<\/p>\n<p>PVA-liima<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-59479\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.23.jpeg\" alt=\"\" width=\"296\" height=\"427\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.23.jpeg 690w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.23-208x300.jpeg 208w\" sizes=\"auto, (max-width: 296px) 100vw, 296px\" \/><\/p>\n<p>Booraksi<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-45982 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1de044201c2a44affdf467aa2704dfa2.jpg\" alt=\"\" width=\"473\" height=\"493\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1de044201c2a44affdf467aa2704dfa2.jpg 930w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1de044201c2a44affdf467aa2704dfa2-288x300.jpg 288w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1de044201c2a44affdf467aa2704dfa2-768x801.jpg 768w\" sizes=\"auto, (max-width: 473px) 100vw, 473px\" \/><\/p>\n<p>Tiesitk\u00f6, ett\u00e4 booraksia k\u00e4ytet\u00e4\u00e4n tavallisesti esimerkiksi n\u00e4ihin:<\/p>\n<p>Puhdistus ja hajunpoisto: Roskakorien raikastamiseen, mattojen puhdistukseen tai vessan pesuun.<\/p>\n<p>Pyykinpesu: Se pehment\u00e4\u00e4 vett\u00e4 ja tehostaa pesuaineen tehoa.<\/p>\n<blockquote><p>T\u00e4rke\u00e4 huomio: Vaikka booraksi on luonnontuote, se on myrkyllist\u00e4.<\/p>\n<p>\u00c4l\u00e4 laita suuhun: Huolehdi, etteiv\u00e4t pienet lapset tai lemmikit p\u00e4\u00e4se maistamaan aineita.<\/p>\n<p>Varo haavoja: Se imeytyy helposti ihon l\u00e4pi, joten k\u00e4yt\u00e4 suojak\u00e4sineit\u00e4, jos k\u00e4tesi ovat rohtuneet tai niiss\u00e4 on haavoja.<\/p><\/blockquote>\n<h3>Kokeen vaiheet<\/h3>\n<p>Valmista kyll\u00e4inen booraksiliuos. Laita mukiin 200 g vett\u00e4 ja lis\u00e4\u00e4 20 g booraksia. Sekoita hyvin. Pohjalle j\u00e4\u00e4 todenn\u00e4k\u00f6isesti liukenematonta booraksia, mutta \u00e4l\u00e4 v\u00e4lit\u00e4 siit\u00e4. K\u00e4yt\u00e4mme vain kirkkaan pinnalla olevan nesteen.<\/p>\n<p>Ota toinen muki ja mittaa siihen 50 g noin 60-asteista vett\u00e4. Lis\u00e4\u00e4 joukkoon suosikkiv\u00e4ri\u00e4si ja luo oma uniikki s\u00e4vysi!<\/p>\n<p>Mittaa kolmanteen mukiin 50 g PVA-liimaa.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-59478 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.13.jpeg\" alt=\"\" width=\"353\" height=\"275\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.13.jpeg 1178w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.13-300x234.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.13-1024x798.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.13-768x598.jpeg 768w\" sizes=\"auto, (max-width: 353px) 100vw, 353px\" \/><\/p>\n<p>Kaada PVA-liima v\u00e4rj\u00e4ttyyn veteen ja sekoita huolellisesti, kunnes seos on tasaista.<\/p>\n<p>Lis\u00e4\u00e4 joukkoon v\u00e4hitellen 20 g aiemmin valmistamaasi booraksiliuoksen kirkasta osaa ja sekoita koko ajan.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-59480 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.07-4.46.19.jpeg\" alt=\"\" width=\"439\" height=\"379\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.07-4.46.19.jpeg 1038w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.07-4.46.19-300x259.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.07-4.46.19-1024x884.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.28.07-4.46.19-768x663.jpeg 768w\" sizes=\"auto, (max-width: 439px) 100vw, 439px\" \/><\/p>\n<p>Noin 30 sekunnin sekoittamisen j\u00e4lkeen huomaat, ett\u00e4 seos muuttuu raskaammaksi ja alkaa vet\u00e4yty\u00e4 kasaan. Lima on valmista!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-59481 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.17-4.46.19.jpeg\" alt=\"\" width=\"284\" height=\"366\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.17-4.46.19.jpeg 504w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.30.17-4.46.19-233x300.jpeg 233w\" sizes=\"auto, (max-width: 284px) 100vw, 284px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34303 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/d09d9295d7e0847d8e263a059557be9a.jpg\" alt=\"\" width=\"518\" height=\"300\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/d09d9295d7e0847d8e263a059557be9a.jpg 1032w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/d09d9295d7e0847d8e263a059557be9a-300x174.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/d09d9295d7e0847d8e263a059557be9a-1024x593.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/d09d9295d7e0847d8e263a059557be9a-768x445.jpg 768w\" sizes=\"auto, (max-width: 518px) 100vw, 518px\" \/><\/p>\n<p><iframe loading=\"lazy\" title=\"\u79d1\u5b66\u3067\u89e3\u304d\u660e\u304b\u3059\uff01\u30b9\u30e9\u30a4\u30e0\u304c\u300c\u30d7\u30eb\u30d7\u30eb\u300d\u306b\u306a\u308b\u9b54\u6cd5\u306e\u4ed5\u7d44\u307f\u3068\u300c\u96fb\u6c17\u30b9\u30e9\u30a4\u30e0\u300d\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/lgTsGxNdJeA?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>Miksi lima j\u00e4hmettyy? Molekyylitason silta<\/h3>\n<p>Kuinka juokseva liima muuttuu sekunneissa kimmoisaksi limaksi? Kyseess\u00e4 on kemiallinen reaktio nimelt\u00e4 silloittuminen.<\/p>\n<h3>1. Liima on t\u00e4ynn\u00e4 pitki\u00e4 ketjuja<\/h3>\n<p>Liman raaka-aine PVA (polyvinyylialkoholi) on polymeeri, joka koostuu valtavan pitkist\u00e4 molekyyliketjuista. Vedess\u00e4 n\u00e4m\u00e4 ketjut uivat vapaasti toistensa lomassa, mink\u00e4 vuoksi liima on juoksevaa nestett\u00e4.<\/p>\n<h3>2. Booraksi toimii siltana<\/h3>\n<p>Kun veteen lis\u00e4t\u00e4\u00e4n booraksia, syntyy boraatti-ioneja. N\u00e4m\u00e4 ionit tarttuvat PVA-ketjuihin ja alkavat sitoa niit\u00e4 toisiinsa kuin pienet kytkimet tai sillat.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-59482 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.45.14.jpeg\" alt=\"\" width=\"597\" height=\"323\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.45.14.jpeg 1438w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.45.14-300x162.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.45.14-1024x554.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-01-27-4.45.14-768x416.jpeg 768w\" sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/><\/p>\n<p>PVA: Pitk\u00e4t lankamaiset molekyylit.<\/p>\n<p>Boraatti-ionit: Toimivat kuin klipsit, jotka napsauttavat langat yhteen.<\/p>\n<h3>3. Vesi j\u00e4\u00e4 vangiksi verkon sis\u00e4\u00e4n<\/h3>\n<p>Kun ketjut muodostavat verkkorakenteen, ne vangitsevat v\u00e4liins\u00e4 valtavasti vesimolekyylej\u00e4. Nesteen liike rajoittuu, mutta suuren vesim\u00e4\u00e4r\u00e4n vuoksi se ei muutu kovaksi esineeksi. T\u00e4m\u00e4 nesteen ja kiinte\u00e4n aineen v\u00e4limuoto (geeli) on juuri sit\u00e4, mit\u00e4 me kutsumme limaksi!<\/p>\n<h3>Uskomaton sovellus: S\u00e4hk\u00f6lima-koe<\/h3>\n<p>Lima voi toimia my\u00f6s muovailtavana virtajohtona! T\u00e4ss\u00e4 on &#8220;S\u00e4hk\u00f6lima&#8221;-koe, jossa fysiikka ja kemia kohtaavat hienolla tavalla.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u96fb\u6c17\u30b9\u30e9\u30a4\u30e0\u306e\u4f5c\u308a\u65b9\u30fb\u904a\u3073\u65b9\uff01electric slime is fun!\u3010\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u3011\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/HRVTpJrOxwA?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<p><span style=\"font-size: 14px;\">Jaa lima kahteen osaan. Ty\u00f6nn\u00e4 pariston johdot ja LED-lampun jalat eri limapalloihin. Katso! LED syttyy palamaan. (Huom: \u00c4l\u00e4 kytke LEDi\u00e4 suoraan paristoon ilman limaa, sill\u00e4 liian suuri j\u00e4nnite voi rikkoa lampun. Lima toimii t\u00e4ss\u00e4 sopivana vastuksena.)<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-34310 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/3.jpg\" alt=\"\" width=\"623\" height=\"336\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/3.jpg 623w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/3-300x162.jpg 300w\" sizes=\"auto, (max-width: 623px) 100vw, 623px\" \/><\/p>\n<p style=\"text-align: center;\">Rakennetaan hyllyv\u00e4 virtapiiri.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34309 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1.jpg\" alt=\"\" width=\"565\" height=\"292\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1.jpg 638w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/1-300x155.jpg 300w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><\/p>\n<p style=\"text-align: center;\">Virta p\u00e4\u00e4lle! Se loistaa upeasti.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34301 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2acc6662a2f6e6cbd457d68ba3e44249.jpg\" alt=\"\" width=\"502\" height=\"440\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2acc6662a2f6e6cbd457d68ba3e44249.jpg 802w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2acc6662a2f6e6cbd457d68ba3e44249-300x263.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2acc6662a2f6e6cbd457d68ba3e44249-768x674.jpg 768w\" sizes=\"auto, (max-width: 502px) 100vw, 502px\" \/><\/p>\n<p style=\"text-align: center;\">Kun ved\u00e4t limat erilleen, valo sammuu. Se toimii kuin kytkin.<\/p>\n<p>Kokeile t\u00e4t\u00e4 h\u00e4m\u00e4r\u00e4ss\u00e4 huoneessa; liman l\u00e4pi hehkuva valo on todella tunnelmallinen ja kaunis.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-34308 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2-1.jpg\" alt=\"\" width=\"554\" height=\"307\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2-1.jpg 554w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/2-1-300x166.jpg 300w\" sizes=\"auto, (max-width: 554px) 100vw, 554px\" \/><\/p>\n<h3>Miksi lima johtaa s\u00e4hk\u00f6\u00e4?<\/h3>\n<p>Salaisuus on limaan liuennut booraksi. Vedess\u00e4 booraksi hajoaa ioneiksi, jotka ovat s\u00e4hk\u00f6\u00e4 kuljettavia hiukkasia. N\u00e4m\u00e4 ionit p\u00e4\u00e4sev\u00e4t liikkumaan liman sis\u00e4ll\u00e4, mik\u00e4 mahdollistaa s\u00e4hk\u00f6virran kulun aivan kuten metallijohdossa.<\/p>\n<p>Viel\u00e4 mielenkiintoisempaa on se, ett\u00e4 jos venyt\u00e4t limaa pitk\u00e4ksi, LED-valo himmenee. Jos taas teet limasta lyhyen ja paksun, valo kirkastuu. T\u00e4m\u00e4 on t\u00e4ydellinen tapa oppia konkreettisesti, miten s\u00e4hk\u00f6vastus muuttuu johtimen pituuden ja paksuuden mukaan!<\/p>\n<p>Lima on paljon muutakin kuin lelu. Se on laboratorio k\u00e4mmenell\u00e4si.<\/p>\n<h3>Yhteystiedot ja tiedustelut<\/h3>\n<p>Haluatko tuoda tieteen ihmeet l\u00e4hemm\u00e4s arkeasi? T\u00e4\u00e4lt\u00e4 l\u00f6yd\u00e4t vinkkej\u00e4 kotona teht\u00e4viin kokeisiin! \u30fbTiedeblogini on nyt my\u00f6s kirjana. Lue lis\u00e4\u00e4 <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a>. \u30fbLis\u00e4tietoa minusta (Ken Kuwako) l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a>. \u30fbYhteisty\u00f6pyynn\u00f6t (luennot, ty\u00f6pajat, TV-esiintymiset jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a>. <span class=\"s2\">\u30fbSeuraa uusimpia p\u00e4ivityksi\u00e4 <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\">Tiedekokeet videolla \u2013 Tilaa kanava!<\/a><\/p>\n<h3>\uff14\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=46937&amp;\">\u5149\u306e\u9b54\u6cd5CMY\u30a6\u30a9\u30fc\u30bf\u30fc\u30ad\u30e5\u30fc\u30d6<\/a>\uff1a\u5149\u306e\u9b54\u6cd5\u3092\u4f53\u9a13\u305b\u3088\uff01\u6c34\u3092\u6ce8\u3050\u3068\u65b0\u305f\u306a\u7acb\u65b9\u4f53\u304c\u51fa\u73fe\u3059\u308b\u9b54\u6cd5\u306e\u3088\u3046\u306a\u5b9f\u9a13\u3067\u3059\u3002<\/li>\r\n<\/ul>\r\n<img class=\"alignnone wp-image-47312 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c.jpg\" sizes=\"auto, (max-width: 267px) 100vw, 267px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c.jpg 1292w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-272x300.jpg 272w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-928x1024.jpg 928w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-768x848.jpg 768w\" alt=\"\" width=\"267\" height=\"294\" \/>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u30fb\u79d1\u5b66\u76e3\u4fee\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>4\u67089\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3 \uff09\u306e\u79d1\u5b66\u76e3\u4fee\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u591c7\u6642\u301c\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\r\n<\/ul>\r\n<h3><span style=\"font-size: medium;\"><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=61585\">\u30b5\u30af\u30bb\u30b915 \uff14\u6708\u53f7<\/a>\u306b\u3066\u3001\u91ce\u7403\u306e\u79d1\u5b66\u306b\u3064\u3044\u3066\u8a18\u4e8b\u3092\u57f7\u7b46\u3057\u307e\u3057\u305f\uff082026\/3\uff09<\/li>\r\n \t<li>\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\" \/>\r\n<\/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=\"font-size: medium;\"><b>\u8b1b\u5e2b\u30fb\u30b7\u30e7\u30fc\u30fb\u7814\u7a76\u7b49\u306e\u304a\u77e5\u3089\u305b<\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>3\/20\uff08\u91d1\uff09\u3000\u65e5\u672c\u7406\u79d1\u6559\u80b2\u5b66\u4f1a\u30aa\u30f3\u30e9\u30a4\u30f3\u5168\u56fd\u5927\u4f1a2026\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=60439\">\u6163\u6027\u306e\u6cd5\u5247\u306e\u6982\u5ff5\u5f62\u6210\u3092\u76ee\u6307\u3057\u305f\u63a2\u7a76\u7684\u306a\u5b66\u3073\u306e\u5b9f\u8df5\u300d<\/a>\u306b\u3064\u3044\u3066\u767a\u8868\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li>6\/14\uff08\u65e5\uff09\u3000\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n \t<li>7\/18\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n \t<li>10\/10\uff08\u571f\uff09\u3000\u79d8\u5bc6\u5175\u5668\u300c\u5e2f\u96fb\u30ac\u30f3\u300d\u304c\u70b8\u88c2\uff01\u30d3\u30ea\u30d3\u30ea\uff01\u30c9\u30ad\u30c9\u30ad\uff01\u9759\u96fb\u6c17\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\uff20\u5343\u8449\u5e02\u79d1\u5b66\u30d5\u30a7\u30b9\u30bf\uff08\u5348\u5f8c\u4e88\u5b9a\uff09<\/li>\r\n \t<li><span style=\"text-align: center;\">\u5404\u7a2eSNS\u3000<\/span><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><span style=\"text-align: center;\">\uff0f<\/span><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><\/li>\r\n<\/ul>\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>\u00a0\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<ul class=\"wp-block-latest-posts__list is-grid columns-3 has-dates wp-block-latest-posts\"><li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62891&#038;lang=ko\" aria-label=\"\uba48\ucd98 \ub4ef\ud558\uc9c0\ub9cc \ub2e4\uac00\uc624\uace0 \uc788\ub2e4? &#8216;\ucf5c\ub9ac\uc804 \ucf54\uc2a4&#8217; \ud604\uc0c1\uc758 \uacf5\ud3ec\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62891&#038;lang=ko\">\uba48\ucd98 \ub4ef\ud558\uc9c0\ub9cc \ub2e4\uac00\uc624\uace0 \uc788\ub2e4? &#8216;\ucf5c\ub9ac\uc804 \ucf54\uc2a4&#8217; \ud604\uc0c1\uc758 \uacf5\ud3ec<\/a><time datetime=\"2026-04-30T04:31:27+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62889&#038;lang=es\" aria-label=\"\u00bfInm\u00f3vil o en rumbo de colisi\u00f3n? El peligro invisible de la velocidad relativa\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62889&#038;lang=es\">\u00bfInm\u00f3vil o en rumbo de colisi\u00f3n? El peligro invisible de la velocidad relativa<\/a><time datetime=\"2026-04-30T04:30:54+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62887&#038;lang=hi\" aria-label=\"\u0938\u094d\u0925\u093f\u0930 \u092a\u0930 \u091c\u093e\u0928\u0932\u0947\u0935\u093e: \u0915\u094b\u0932\u093f\u091c\u0928 \u0915\u094b\u0930\u094d\u0938 \u0915\u093e \u0916\u0924\u0930\u0928\u093e\u0915 \u0938\u091a\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62887&#038;lang=hi\">\u0938\u094d\u0925\u093f\u0930 \u092a\u0930 \u091c\u093e\u0928\u0932\u0947\u0935\u093e: 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