{"id":52972,"date":"2025-09-23T07:01:03","date_gmt":"2025-09-22T22:01:03","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=52972"},"modified":"2025-09-23T07:01:54","modified_gmt":"2025-09-22T22:01:54","slug":"lasikyynelten-paljastama-tieteen-arvoitus-koe-jarisyttava-hetki-hollannin-kyynelen-kanssa","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=52972&lang=fi","title":{"rendered":"Lasikyynelten paljastama tieteen arvoitus! Koe j\u00e4risytt\u00e4v\u00e4 hetki \u2018Hollannin kyynelen\u2019 kanssa"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Hei, olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on uusi koe.<\/strong><\/span><\/p>\n<p>T\u00e4n\u00e4\u00e4n esittelen teille mystisen ja kauniin kokeen, jonka tein tiedekerhon oppilaiden kanssa: &#8220;<strong>Hollannin kyynel<\/strong>&#8220;. <span style=\"font-size: 14px;\">T\u00e4m\u00e4 koe on todella kiehtova, sill\u00e4 siin\u00e4 k\u00e4ytet\u00e4\u00e4n arkista materiaalia, lasia, ja se n\u00e4ytt\u00e4\u00e4 meille, kuinka sen ominaisuudet voivat ylitt\u00e4\u00e4 mielikuvituksemme. Lasin sulaminen l\u00e4mm\u00f6ss\u00e4 ja sen putoaminen veteen n\u00e4ytt\u00e4\u00e4 taideteokselta. T\u00e4m\u00e4n kauneuden takana piilee kuitenkin kiinte\u00e4n ja nestem\u00e4isen olomuodon muutosten sek\u00e4 materiaalin sis\u00e4ll\u00e4 olevien j\u00e4nnitysten draama.<\/span><\/p>\n<h2>Shokki ja kauneus! L\u00e4hde syvemm\u00e4lle lasin salaisuuksiin &#8220;Hollannin kyynel&#8221; -kokeella<\/h2>\n<p>Kun lasitankoa kuumennetaan ja pudotetaan veteen, syntyy kyynelen muotoinen lasipisara. T\u00e4t\u00e4 kutsutaan &#8220;<strong>Hollannin kyyneliksi (Prince Rupert&#8217;s Drop)<\/strong>&#8220;. T\u00e4m\u00e4n kokeen vieh\u00e4tys piilee sen <strong>kauniissa muodostumisprosessissa<\/strong> ja <strong>valmiin tuotteen odottamattomassa tuhoutumisessa<\/strong>.<\/p>\n<h3>Mit\u00e4 Hollannin kyynel on? Tiedett\u00e4 lasin ominaisuuksien kautta<\/h3>\n<p><iframe loading=\"lazy\" title=\"\u885d\u6483\u3068\u7f8e\u3057\u3055\uff01\u300c\u30aa\u30e9\u30f3\u30c0\u306e\u6d99\u300d\u3067\u30ac\u30e9\u30b9\u306e\u4e0d\u601d\u8b70\u306b\u8feb\u308b\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/XelAf5KX6RE?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>Hollannin kyynel valmistetaan pudottamalla sulanutta lasia kylm\u00e4\u00e4n veteen. T\u00e4ll\u00f6in lasille syntyy eritt\u00e4in erikoinen sis\u00e4inen rakenne.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49688 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/2479bd51cd0ddee41727297b138f9cd6.jpg\" alt=\"\" width=\"315\" height=\"301\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/2479bd51cd0ddee41727297b138f9cd6.jpg 632w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/2479bd51cd0ddee41727297b138f9cd6-300x287.jpg 300w\" sizes=\"auto, (max-width: 315px) 100vw, 315px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49689 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b77b9ff2875e8890a79ff48484ae3646.jpg\" alt=\"\" width=\"301\" height=\"233\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b77b9ff2875e8890a79ff48484ae3646.jpg 760w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b77b9ff2875e8890a79ff48484ae3646-300x233.jpg 300w\" sizes=\"auto, (max-width: 301px) 100vw, 301px\" \/><\/p>\n<p>Mekanismi muistuttaa &#8220;<strong>paahdetun lasikuulan<\/strong>&#8221; ilmi\u00f6t\u00e4. Kun sulanut lasi putoaa veteen, se <strong>j\u00e4\u00e4htyy ja kovettuu ensin ulkopuolelta nopeasti<\/strong>. Nestem\u00e4isest\u00e4 tilasta kiinte\u00e4ksi muuttuessaan lasin tilavuus pienenee hieman. Koska pinta kovettuu ensin, sis\u00e4ll\u00e4 viel\u00e4 sulana oleva lasi &#8220;<strong>puristuu kasaan<\/strong>&#8221; ulkopuolelta tulevan kutistusvoiman vuoksi.<\/p>\n<p>T\u00e4m\u00e4n j\u00e4lkeen sis\u00e4osa j\u00e4\u00e4htyy ja kovettuu hitaasti, mutta koska ulkokuori on jo kovettunut, sis\u00e4inen lasi kovettuu voimakkaiden <strong>vetoj\u00e4nnitysten<\/strong> alaisena, aivan kuin sit\u00e4 vedett\u00e4isiin ulosp\u00e4in. Tuloksena Hollannin kyynelen pinta on eritt\u00e4in voimakkaasti puristettu ja sis\u00e4ll\u00e4 on voimakas j\u00e4nnitys. T\u00e4m\u00e4 erikoinen voimatasapaino on Hollannin kyynelen t\u00e4rkein ominaisuus.<\/p>\n<p>T\u00e4m\u00e4n sis\u00e4isen j\u00e4nnityksen ansiosta Hollannin kyynelen pallomainen osa on eritt\u00e4in kest\u00e4v\u00e4. Se on niin kest\u00e4v\u00e4, ettei se murru helposti edes vasaralla ly\u00f6t\u00e4ess\u00e4. Mutta yll\u00e4tt\u00e4v\u00e4\u00e4 kyll\u00e4, jos t\u00e4m\u00e4n kyynelen muotoisen lasin <strong>&#8220;h\u00e4nt\u00e4\u00e4&#8221;<\/strong> hieman s\u00e4rkee tai katkaisee esimerkiksi pihdeill\u00e4, <strong>koko kappale hajoaa hetkess\u00e4 palasiksi<\/strong>. Uskotaan, ett\u00e4 h\u00e4nn\u00e4n p\u00e4\u00e4n pieni vaurio laukaisee sis\u00e4ll\u00e4 olevan voimakkaan vetoj\u00e4nnityksen vapautumisen ja tuho levi\u00e4\u00e4.<\/p>\n<p style=\"text-align: center;\">Laita se muovipussiin ja k\u00e4yt\u00e4 suojalaseja. K\u00e4\u00e4ri se muovipussiin ja kokeile taittaa k\u00e4rki pihdeill\u00e4. Koko esine hajoaa kerralla.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49801 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b3d426ffeb2c95678b83fd6c0ed49496.jpg\" alt=\"\" width=\"437\" height=\"425\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b3d426ffeb2c95678b83fd6c0ed49496.jpg 976w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b3d426ffeb2c95678b83fd6c0ed49496-300x292.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b3d426ffeb2c95678b83fd6c0ed49496-768x748.jpg 768w\" sizes=\"auto, (max-width: 437px) 100vw, 437px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49802 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/39006969e79ea4470b59a57449ba2c4b.jpg\" alt=\"\" width=\"440\" height=\"394\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/39006969e79ea4470b59a57449ba2c4b.jpg 1176w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/39006969e79ea4470b59a57449ba2c4b-300x269.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/39006969e79ea4470b59a57449ba2c4b-1024x918.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/39006969e79ea4470b59a57449ba2c4b-768x688.jpg 768w\" sizes=\"auto, (max-width: 440px) 100vw, 440px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49690 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/dcee4dd16a9807ca91f13c10e2ea08c2.jpg\" alt=\"\" width=\"310\" height=\"250\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/dcee4dd16a9807ca91f13c10e2ea08c2.jpg 790w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/dcee4dd16a9807ca91f13c10e2ea08c2-300x242.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/dcee4dd16a9807ca91f13c10e2ea08c2-768x620.jpg 768w\" sizes=\"auto, (max-width: 310px) 100vw, 310px\" \/><\/p>\n<p>Viittasin t\u00e4h\u00e4n sivustoon:<\/p>\n<p style=\"text-align: center;\">Ei hajoa edes vasaralla ly\u00f6t\u00e4ess\u00e4?! Valmista h\u00e4mm\u00e4stytt\u00e4v\u00e4\u00e4 lasia<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.mirai-kougaku.jp\/laboratory\/pages\/201016.php#:~:text=\u306f\u3058\u3081\u306b,\u307f\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b%E3%80%82\">30. lokakuuta 2020, Tsukuba University of Technology, teollisen teknologian tiedekunta<\/a><\/p>\n<h3>Tiedekerhossa k\u00e4yt\u00e4nn\u00f6ss\u00e4! Valmistelu ja kokeen kulku<\/h3>\n<p>Tiedekerhossamme haastoimme itsemme t\u00e4h\u00e4n ihmeelliseen kokeeseen.<\/p>\n<h4>Tarvikkeet<\/h4>\n<ul>\n<li><strong>Lasitanko<\/strong>: Tavallinen tiedekokeissa k\u00e4ytett\u00e4v\u00e4 lasitanko riitt\u00e4\u00e4.<\/li>\n<li><strong>Suihkupoltin (tai kaasupoltin)<\/strong>: Lasin sulattamiseen tarvitaan korkeaa l\u00e4mp\u00f6tilaa.<\/li>\n<li><strong>L\u00e4mm\u00f6nkest\u00e4v\u00e4 keitinlasi tai metalliastia<\/strong>: Kylm\u00e4\u00e4 vett\u00e4 varten, johon lasipisarat pudotetaan.<\/li>\n<li><strong>Kylm\u00e4 vesi<\/strong>: Lis\u00e4t\u00e4\u00e4n keitinlasiin.<\/li>\n<li><strong>Pihtit<\/strong>: K\u00e4ytet\u00e4\u00e4n valmiin Hollannin kyynelen h\u00e4nn\u00e4n rikkomiseen.<\/li>\n<li><strong>Suojalasit<\/strong>: <strong>K\u00e4yt\u00e4 ehdottomasti. Lasinsirpaleita saattaa lent\u00e4\u00e4.<\/strong><\/li>\n<li><strong>L\u00e4mm\u00f6nkest\u00e4v\u00e4t hansikkaat<\/strong>: Turvallinen k\u00e4ytt\u00e4\u00e4 lasitankoa pidelt\u00e4ess\u00e4.<\/li>\n<li><strong>Ty\u00f6p\u00f6yt\u00e4<\/strong>: Tee koe vakaalla alustalla.<\/li>\n<\/ul>\n<h4>Kokeen vaiheet<\/h4>\n<ol>\n<li><strong>Valmistele vesi<\/strong>:\n<ul>\n<li>Valmistele l\u00e4mm\u00f6nkest\u00e4v\u00e4 keitinlasi tai metalliastia, jossa on riitt\u00e4v\u00e4sti kylm\u00e4\u00e4 vett\u00e4. K\u00e4yt\u00e4 reilusti vett\u00e4.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Kuumenna lasitanko<\/strong>:\n<ul>\n<li>K\u00e4yt\u00e4 suojalaseja ja l\u00e4mm\u00f6nkest\u00e4vi\u00e4 hansikkaita.<\/li>\n<li>Kuumenna lasitangon k\u00e4rke\u00e4 suihkupoltinliekill\u00e4. Voit n\u00e4hd\u00e4 lasin muuttuvan punaiseksi ja sitten pehme\u00e4sti sulavan. Kuumenna riitt\u00e4v\u00e4sti, kunnes lasi sulaa ja muodostaa py\u00f6re\u00e4n pisaran.<\/li>\n<li><strong>Anna oppilaiden tarkkailla turvallisen et\u00e4isyyden p\u00e4\u00e4st\u00e4 ja varo palovammoja.<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>Pudota veteen<\/strong>:\n<ul>\n<li>Kun lasi on sulanut riitt\u00e4v\u00e4sti ja pisara on muodostunut, ty\u00f6nn\u00e4 kuumennetun lasitangon k\u00e4rki hitaasti kylm\u00e4\u00e4n veteen ja anna sulaneen lasin pudota luonnollisesti veteen &#8220;kyynelen tavoin&#8221;. \u00c4l\u00e4 ravista sit\u00e4 v\u00e4kisin.<\/li>\n<li>Veteen pudonnut lasi j\u00e4\u00e4htyy ja kovettuu v\u00e4litt\u00f6m\u00e4sti, muodostaen kyynelen kaltaisen muodon.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tarkkaile muodostunutta kyynelt\u00e4<\/strong>:\n<ul>\n<li>Ota veteen muodostunut Hollannin kyynel pois ja tarkkaile sen ainutlaatuista muotoa ja l\u00e4pin\u00e4kyvyytt\u00e4. Kun se asetetaan polarisaattorin l\u00e4pi, n\u00e4kyy ainutlaatuinen v\u00e4ri. Olisiko t\u00e4m\u00e4 merkki sis\u00e4isest\u00e4 j\u00e4nnityksest\u00e4? <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49803\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/1ae82b6a68561f8a886e3f1d8a061f45.jpg\" alt=\"\" width=\"540\" height=\"413\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/1ae82b6a68561f8a886e3f1d8a061f45.jpg 1340w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/1ae82b6a68561f8a886e3f1d8a061f45-300x229.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/1ae82b6a68561f8a886e3f1d8a061f45-1024x783.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/1ae82b6a68561f8a886e3f1d8a061f45-768x587.jpg 768w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/li>\n<\/ul>\n<\/li>\n<li><strong>Shokeeraava hetki! Tuhoamiskoe<\/strong>:\n<ul>\n<li>K\u00e4yt\u00e4 ehdottomasti suojalaseja ja tee koe turvallisessa paikassa.<\/li>\n<li>Purista valmiin Hollannin kyynelen &#8220;h\u00e4nn\u00e4n k\u00e4rke\u00e4&#8221; pihdeill\u00e4 ja riko se.<\/li>\n<li>Silloin kuuluu <strong>&#8220;pats!&#8221; ja koko kyynel hajoaa hetkess\u00e4 pieniksi palasiksi.<\/strong> T\u00e4m\u00e4 dramaattinen tuhoutumisilmi\u00f6 saa oppilaat varmasti h\u00e4mm\u00e4stym\u00e4\u00e4n.<\/li>\n<li>Koska sirpaleita saattaa lent\u00e4\u00e4, ole varovainen ymp\u00e4rist\u00f6si suhteen ja tee koe paikassa, jossa sirpaleet eiv\u00e4t aiheuta ongelmia, tai l\u00e4pin\u00e4kyv\u00e4ss\u00e4 kotelossa, jotta se on turvallisempaa.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Mit\u00e4 t\u00e4st\u00e4 kokeesta opitaan<\/h3>\n<p>Hollannin kyynelen koe on paitsi visuaalisesti mielenkiintoinen, my\u00f6s hyv\u00e4 tilaisuus oppia seuraavia t\u00e4rkeit\u00e4 tieteellisi\u00e4 periaatteita:<\/p>\n<ul>\n<li><strong>Aineen olomuodon muutokset<\/strong>: Tarkkaile, kuinka lasi muuttuu kiinte\u00e4st\u00e4 nestem\u00e4iseen ja takaisin kiinte\u00e4\u00e4n tilaan.<\/li>\n<li><strong>L\u00e4mp\u00f6laajeneminen ja -kutistuminen<\/strong>: Voidaan selitt\u00e4\u00e4, kuinka aineen tilavuuden kutistuminen j\u00e4\u00e4htyess\u00e4 aiheuttaa Hollannin kyynelen erikoisen sis\u00e4isen j\u00e4nnitysrakenteen.<\/li>\n<li><strong>Sis\u00e4inen j\u00e4nnitys ja murtuminen<\/strong>: Voidaan visuaalisesti ymm\u00e4rt\u00e4\u00e4 mekanismi, jossa lasin sis\u00e4lle varastoitunut j\u00e4nnitys vapautuu ulkoisen voiman vaikutuksesta, aiheuttaen dramaattisen murtuman. T\u00e4m\u00e4 liittyy materiaalitieteen perusajatuksiin.<\/li>\n<li><strong>Aineen ominaisuuksien ja rakenteen suhde<\/strong>: Voidaan ymm\u00e4rt\u00e4\u00e4, ett\u00e4 vaikka kyseess\u00e4 on sama lasimateriaali, se voi osoittaa t\u00e4ysin erilaisia fysikaalisia ominaisuuksia (kest\u00e4vyys ja hauraus) riippuen sen valmistustavasta.<\/li>\n<\/ul>\n<h3>Tiedustelut ja pyynn\u00f6t<\/h3>\n<p>Tiede on ihmeellist\u00e4 ja hauskaa, ja se on l\u00e4hemp\u00e4n\u00e4 kuin uskotkaan! Olen koonnut helposti ymm\u00e4rrett\u00e4vi\u00e4 ohjeita hauskoista kotikokeista ja niiden vinkeist\u00e4. K\u00e4y etsim\u00e4ss\u00e4!<br \/>\n\u30fbTietoa yll\u00e4pit\u00e4j\u00e4st\u00e4, Ken Kuwakosta, l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbErilaiset pyynn\u00f6t (kirjoitukset, luennot, kokeilupajat, TV-valvonta, esiintymiset jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbArtikkelip\u00e4ivitykset 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\">Tiedevideokanavalla<\/a> julkaistaan kokeiluvideoita!<\/p>\n<h3>\uff15\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p>\u30ad\u30fc\u30f3\u3068\u51b7\u3048\u308b\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\uff01\u6c17\u6e29\u304c\u4e0a\u304c\u3063\u3066\u304f\u308b\u3053\u306e\u6642\u671f\u30fb\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u3092\u4f7f\u3063\u305f\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\u306e\u5b9f\u9a13\u306f\u3044\u304b\u304c\uff1f<\/p>\r\n<p><img class=\"alignnone wp-image-39516 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg 1406w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-300x168.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-1024x572.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-768x429.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-320x180.jpg 320w\" alt=\"\" width=\"453\" height=\"253\" \/><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=39513\">\u6db2\u4f53\u30bc\u30ed\uff01\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u304c\u6d88\u3048\u308b\u307e\u3067\u306e\uff13\u6642\u9593\u3092\u79d1\u5b66\u3059\u308b\uff08\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\uff09<\/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>4\u670830\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306e<a href=\"https:\/\/phys-edu.net\/wp\/?p=62906\">\u79d1\u5b66\u76e3\u4fee\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<li>5\u67088\u65e5\uff08\u91d1\uff09<a href=\"https:\/\/phys-edu.net\/wp\/?p=62629\">\u7406\u79d1\u6559\u80b2\u30cb\u30e5\u30fc\u30b9<\/a>\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\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<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000\u5343\u8449\u5927\u5b66\u306e\u516c\u958b\u7814\u7a76\u4f1a\uff08\u4e2d\u5b66\u7406\u79d1\u306b\u3064\u3044\u3066\u6388\u696d\u516c\u958b\u4e88\u5b9a\uff09<\/li>\r\n<li>7\u670818\u65e5\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<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<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<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\" \/><br \/><\/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;\"><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>\uff08\u65e5\u672c\u8a9e\uff09<\/p>\r\n<p style=\"text-align: center;\"><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>\uff08\u82f1\u8a9e\uff09<\/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>Hei, olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on uusi koe. T\u00e4n\u00e4\u00e4n esittelen teille mystisen ja kauniin koke [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":49687,"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":""},"categories":[1630],"tags":[],"class_list":["post-52972","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/b7d92e6cb0e2adc9c150c85d9266ccc4.jpg","jetpack-related-posts":[{"id":60411,"url":"https:\/\/phys-edu.net\/wp\/?p=60411&lang=fi","url_meta":{"origin":52972,"position":0},"title":"Minne s\u00e4hk\u00f6 katosi? Neutralisaation piirt\u00e4m\u00e4n vaikuttavan V-muotoisen k\u00e4yr\u00e4n salaisuus! (Bariumhydroksidi ja rikkihappo -koe)","author":"\u6851\u5b50 \u7814","date":"2026\u5e742\u670811\u65e5","format":false,"excerpt":"Tervehdys kaikille! Olen tiedevalmentaja Ken Kuwak\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\/02\/%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%88-2026-01-29-9.50.26.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%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%88-2026-01-29-9.50.26.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%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%88-2026-01-29-9.50.26.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%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%88-2026-01-29-9.50.26.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":61114,"url":"https:\/\/phys-edu.net\/wp\/?p=61114&lang=fi","url_meta":{"origin":52972,"position":1},"title":"Tiedeshown megahitti! L\u00f6yd\u00e4 norsuhammastahnan t\u00e4ydellinen sekoitussuhde!","author":"\u6851\u5b50 \u7814","date":"2026\u5e743\u67086\u65e5","format":false,"excerpt":"Hei, olen luonnontieteiden valmentaja Ken Kuwako. \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\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":55854,"url":"https:\/\/phys-edu.net\/wp\/?p=55854&lang=fi","url_meta":{"origin":52972,"position":2},"title":"Pyydyst\u00e4 valon taittuminen! Nelj\u00e4 nuppineulaa paljastaa valon salaisen reitin (Pystytk\u00f6 paljastamaan valokuvahuijauksen?)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u670813\u65e5","format":false,"excerpt":"Olen Ken Kuwako, tiedeohjaaja. Jokainen p\u00e4iv\u00e4 on k\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\/06\/e6d88b8ba4709477e240017b28f76a34.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/e6d88b8ba4709477e240017b28f76a34.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/e6d88b8ba4709477e240017b28f76a34.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/e6d88b8ba4709477e240017b28f76a34.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":52482,"url":"https:\/\/phys-edu.net\/wp\/?p=52482&lang=fi","url_meta":{"origin":52972,"position":3},"title":"Rakensimme tulivuoren \u2013 ja se oli r\u00e4j\u00e4hdysm\u00e4isen hauskaa! 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