{"id":65202,"date":"2026-07-07T04:24:15","date_gmt":"2026-07-06T19:24:15","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=65202"},"modified":"2026-07-07T04:24:15","modified_gmt":"2026-07-06T19:24:15","slug":"sahkovirran-hiljainen-draama-kondensaattorin-purkautumisen-tiede-opas-anturipohjaiseen-lataus-ja-purkautumiskokeeseen","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=65202&lang=fi","title":{"rendered":"S\u00e4hk\u00f6virran hiljainen draama: kondensaattorin purkautumisen tiede (opas anturipohjaiseen lataus- ja purkautumiskokeeseen)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Olen tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on uusi koe.<\/strong><\/span><\/p>\n<h3>Miksi kondensaattorista purkautuva s\u00e4hk\u00f6virta piirt\u00e4\u00e4 niin kauniin k\u00e4yr\u00e4n?<\/h3>\n<p>Ent\u00e4 jos n\u00e4kym\u00e4t\u00f6n s\u00e4hk\u00f6virta voitaisiin n\u00e4hd\u00e4 reaaliajassa graafina? T\u00e4ll\u00e4 kertaa p\u00e4\u00e4tin kokeilla juuri sit\u00e4. K\u00e4yt\u00f6ss\u00e4 oli suuri 1 F:n kondensaattori (nimellisj\u00e4nnite 5,5 V). Latasin sen kolmella paristolla ja purin sen 10 \u03a9:n, 5 \u03a9:n ja 20 \u03a9:n vastusten kautta. Lopputulos oli suorastaan h\u00e4mm\u00e4stytt\u00e4v\u00e4: k\u00e4yr\u00e4 oli uskomattoman kaunis. Mittauksessa k\u00e4ytettiin Narikalta hankittua DataHarvest EasySense V-Hub -anturia.<\/p>\n<h3>Analoginen virtamittari ei koskaan n\u00e4ytt\u00e4nyt koko totuutta<\/h3>\n<p>Kun tein samanlaisia kokeita aiemmin pelk\u00e4n analogisen virtamittarin avulla, pystyin vain seuraamaan, kuinka neula liikkui hitaasti. Tiesin kyll\u00e4, ett\u00e4 virta pieneni v\u00e4hitellen, mutta en oikeastaan n\u00e4hnyt, mink\u00e4 matemaattisen lain mukaan se muuttui tai kuinka nopeasti muutos tapahtui.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"sqiX4w3QDI\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=34402\">\u62b5\u6297\u3092\u5909\u3048\u3066\u3082\u3001\u96fb\u6c17\u91cf\u306f\u540c\u3058\u3060\u3063\u305f\u3002\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u8a08\u6e2c\u304c\u6559\u3048\u3066\u304f\u308c\u305f\u7269\u7406\u306e\u771f\u5b9f\uff08\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u306e\u5145\u96fb\u30fb\u653e\u96fb\u5b9f\u9a13\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201d\u62b5\u6297\u3092\u5909\u3048\u3066\u3082\u3001\u96fb\u6c17\u91cf\u306f\u540c\u3058\u3060\u3063\u305f\u3002\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u8a08\u6e2c\u304c\u6559\u3048\u3066\u304f\u308c\u305f\u7269\u7406\u306e\u771f\u5b9f\uff08\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u306e\u5145\u96fb\u30fb\u653e\u96fb\u5b9f\u9a13\uff09\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=34402&amp;embed=true#?secret=fKpJgtCttQ#?secret=sqiX4w3QDI\" data-secret=\"sqiX4w3QDI\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>Kun virta piirret\u00e4\u00e4n reaaliajassa anturin avulla, ilmi\u00f6n todellinen luonne tulee selv\u00e4sti n\u00e4kyviin. K\u00e4yr\u00e4 on niin sanottu eksponentiaalinen vaimeneminen, joka esiintyy kaikkialla luonnossa. T\u00e4sm\u00e4lleen samanlainen matemaattinen muoto kuvaa esimerkiksi radioaktiivisten aineiden hajoamista ja kuuman teen j\u00e4\u00e4htymist\u00e4. Kondensaattoriin varastoitunut s\u00e4hk\u00f6 virtaa ulos v\u00e4hitellen vastuksen l\u00e4pi aivan kuin kuuma tee luovuttaisi l\u00e4mp\u00f6\u00e4\u00e4n hitaasti ymp\u00e4rist\u00f6\u00f6n. <span style=\"font-size: 14px;\">N\u00e4in mittaus n\u00e4ytti EasySense2-sovelluksessa.<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"\u3010\u5b9f\u9a13\u3011\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u306e\u653e\u96fb\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u3055\u308c\u308b\u306e\u304b\uff1f\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/Kzv1YlpcfaE?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>Pieni mutta t\u00e4rke\u00e4 vaihe: nollakalibrointi<\/h3>\n<p>Yksi EasySense2-sovelluksen mukavista ominaisuuksista on nollakalibrointi. Kun \u00b11 A:n anturi on kytketty, anturia liikutetaan hieman ja painetaan &#8220;Set Tera&#8221; -painiketta. T\u00e4ll\u00f6in sen hetkinen arvo m\u00e4\u00e4ritell\u00e4\u00e4n nollaksi. T\u00e4m\u00e4 toimii samalla periaatteella kuin keitti\u00f6vaa&#8217;an taaraus: ensin poistetaan kulhon paino, jotta j\u00e4ljelle j\u00e4\u00e4 vain mitattavan aineen massa. Samalla tavoin anturin pieni oma mittausvirhe poistetaan ennen varsinaista mittausta. Kyseess\u00e4 on pieni valmisteluvaihe, mutta sill\u00e4 on suuri vaikutus koko kokeen tarkkuuteen.<\/p>\n<h3>Purkaus alkaa \u2013 s\u00e4hk\u00f6virran hiljainen draama<\/h3>\n<p>Kun kaikki on valmista, kondensaattori ladataan t\u00e4yteen ja purkaus k\u00e4ynnistet\u00e4\u00e4n. Virta nousee heti suurimpaan arvoonsa ja alkaa sen j\u00e4lkeen pienenty\u00e4 hitaasti ajan kuluessa. Graafi muistuttaa maratonjuoksijaa, joka l\u00e4htee liikkeelle t\u00e4ydell\u00e4 vauhdilla ja hidastaa askel askeleelta jatkaen kuitenkin tasaisesti eteenp\u00e4in. Hiljainen mutta kiehtova tarina piirtyy n\u00e4kyviin k\u00e4yr\u00e4n muodossa.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-65165 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.19.07.jpeg\" alt=\"\" width=\"603\" height=\"389\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.19.07.jpeg 1274w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.19.07-300x194.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.19.07-1024x661.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.19.07-768x496.jpeg 768w\" sizes=\"auto, (max-width: 603px) 100vw, 603px\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-65163 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.41.jpeg\" alt=\"\" width=\"604\" height=\"306\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.41.jpeg 1278w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.41-300x152.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.41-1024x519.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.41-768x389.jpeg 768w\" sizes=\"auto, (max-width: 604px) 100vw, 604px\" \/><\/p>\n<p>Graafin hidas muuttuminen on jo sellaisenaan eritt\u00e4in havainnollista. Sit\u00e4 katsellessa tulee melkein tunne kuin seuraisi syd\u00e4nmonitorin n\u00e4ytt\u00f6\u00e4.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-65164\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.54.jpeg\" alt=\"\" width=\"605\" height=\"347\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.54.jpeg 1408w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.54-300x172.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.54-1024x588.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-06-4.18.54-768x441.jpeg 768w\" sizes=\"auto, (max-width: 605px) 100vw, 605px\" \/><\/p>\n<h3>Mit\u00e4 k\u00e4yr\u00e4n alle j\u00e4\u00e4v\u00e4 pinta-ala kertoo?<\/h3>\n<p>T\u00e4ss\u00e4 on lopullinen mittausgraafi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-37933 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/IMG_2267.png\" alt=\"\" width=\"561\" height=\"421\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/IMG_2267.png 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/IMG_2267-300x225.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/08\/IMG_2267-768x576.png 768w\" sizes=\"auto, (max-width: 561px) 100vw, 561px\" \/><\/p>\n<p style=\"text-align: center;\">Ylempi vaaleanpunainen k\u00e4yr\u00e4 on mitattu 5 \u03a9:n vastuksella ja alempi punainen 10 \u03a9:n vastuksella.<\/p>\n<p>Kun tarkastelee virtak\u00e4yr\u00e4\u00e4, huomaa sen alle j\u00e4\u00e4v\u00e4n pinta-alan. Juuri t\u00e4m\u00e4 pinta-ala kuvaa kondensaattorista purkautuneen s\u00e4hk\u00f6varauksen kokonaism\u00e4\u00e4r\u00e4\u00e4. Sen laskeminen on integraalilaskentaa. Aikaisemmin t\u00e4m\u00e4 tehtiin k\u00e4sin tai laskemalla ruutupaperin ruutuja yksi kerrallaan, mutta EasySense laskee arvon hetkess\u00e4 automaattisesti. Sen ansiosta koko koe voidaan tehd\u00e4 ja analysoida oppitunnin aikana. Erityisen kiinnostavaa on se, ett\u00e4 vaikka vastuksen arvo muuttuu, laskettu kapasitanssi pysyy l\u00e4hes samana. Juuri n\u00e4in teorian kuuluukin ennustaa, ja samalla oppilaat n\u00e4kev\u00e4t omin silmin, ett\u00e4 fysiikan lait todella toimivat k\u00e4yt\u00e4nn\u00f6ss\u00e4.<\/p>\n<p>Tulokset olivat seuraavat.<\/p>\n<p>5 \u03a9:n vastuksella:<\/p>\n<p style=\"text-align: center;\">5,3 \u03a9, j\u00e4nnite 4,60 V, pinta-alaintegraali (s\u00e4hk\u00f6varaus) 4,582 As<\/p>\n<p>10 \u03a9:n vastuksella:<\/p>\n<p style=\"text-align: center;\">10,2 \u03a9, j\u00e4nnite 4,50 V, pinta-alaintegraali (s\u00e4hk\u00f6varaus) 4,457 As<\/p>\n<p>Vaikka vastuksen suuruus muuttui, kondensaattoriin varastoituneen s\u00e4hk\u00f6varauksen kokonaism\u00e4\u00e4r\u00e4 pysyi l\u00e4hes vakiona. Tuttu fysiikan laki muuttui t\u00e4ll\u00e4 kertaa konkreettisiksi numeroiksi.<\/p>\n<h3>Arkinen koe, joka auttaa my\u00f6s p\u00e4\u00e4sykokeissa<\/h3>\n<p>Uskon, ett\u00e4 t\u00e4m\u00e4 on juuri sellainen aihe, joka esiintyy usein my\u00f6s p\u00e4\u00e4sykokeissa ja ylioppilastason teht\u00e4viss\u00e4. Kondensaattorin purkautuminen on s\u00e4hk\u00f6opin perusilmi\u00f6, mutta samalla se johdattaa eksponentiaalisiin muutoksiin, jotka ovat yksi luonnon yleisimmist\u00e4 matemaattisista ilmi\u00f6ist\u00e4. Yksi ainoa k\u00e4yr\u00e4 kertoo paljon enemm\u00e4n kuin pelk\u00e4st\u00e4\u00e4n s\u00e4hk\u00f6st\u00e4 \u2013 se paljastaa yleisen lain siit\u00e4, kuinka monet asiat luonnossa v\u00e4henev\u00e4t ajan my\u00f6t\u00e4. Kun sen oivaltaa, tavallinen laboratoriokoe n\u00e4ytt\u00e4\u00e4kin aivan uudelta.<\/p>\n<h3>Yhteydenotot ja yhteisty\u00f6<\/h3>\n<p>Tehd\u00e4\u00e4n tieteest\u00e4 entist\u00e4 l\u00e4heisemp\u00e4\u00e4 ja hauskempaa! Sivustolta l\u00f6yd\u00e4t helposti kotona toteutettavia tiedekokeita sek\u00e4 selkeit\u00e4 vinkkej\u00e4 niiden tekemiseen. Tutustu rohkeasti muihinkin artikkeleihin!<\/p>\n<p>\u30fbTiedeaiheisista artikkeleistani on ilmestynyt my\u00f6s kirja. Lis\u00e4tietoja <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbLis\u00e4tietoja sivuston yll\u00e4pit\u00e4j\u00e4st\u00e4 Ken Kuwakosta <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbKirjoitus-, luento-, tiedety\u00f6paja-, TV-asiantuntija- ja muut yhteisty\u00f6pyynn\u00f6t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbUusimmat artikkelip\u00e4ivitykset l\u00f6ytyv\u00e4t my\u00f6s <a href=\"https:\/\/x.com\/kuwako\">X:st\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\">Science Notes -kanavalla<\/a> julkaistaan s\u00e4\u00e4nn\u00f6llisesti uusia tiedekokeiden videoita!<\/p>\n<h3><span style=\"color: #ff0000;\">NEW\u3000\u5206\u89e3\u554f\u984c\u96c6\u3000\u7406\u79d1<\/span><\/h3>\r\n<ul>\r\n \t<li>\uff17\u6708\uff12\uff11\u65e5\u767a\u58f2\uff01\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><\/li>\r\n<\/ul>\r\n<h3>\uff17\u30fb\uff18\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\">\u590f\u3067\u30d7\u30b7\u30e5\u30c3\u3068\u723d\u3084\u304b\u5b9f\u9a13\uff01<\/p>\r\n<img class=\"alignnone  wp-image-64964 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-30-4.31.58.jpeg\" alt=\"\" width=\"250\" height=\"310\" \/>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=206\">\u5c0f\u578b\u3067\u6301\u3061\u5e30\u308c\u308b\u3088\uff01\u30da\u30c3\u30c8\u30dc\u30c8\u30eb\u30ed\u30b1\u30c3\u30c8\u3092\u4f5c\u308d\u3046\uff01<\/a><\/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>\uff17\u6708\uff13\uff10\u65e5\uff08\u6c34\uff09\u79d1\u5b66\u76e3\u4fee\u300c<a href=\"https:\/\/www.fujitv.co.jp\/onesongfes\/\">TIF presents ONE SONG FES<\/a>\u300d\uff08\u30d5\u30b8\u30c6\u30ec\u30d3\uff09\u00a026:15~27:15<\/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\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>\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>","protected":false},"excerpt":{"rendered":"<p>Olen tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on uusi koe. Miksi kondensaattorista purkautuva s\u00e4hk\u00f6virta piirt\u00e4\u00e4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":36887,"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-65202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack-related-posts":[{"id":63969,"url":"https:\/\/phys-edu.net\/wp\/?p=63969&lang=fi","url_meta":{"origin":65202,"position":0},"title":"S\u00e4hk\u00f6mies, Paketinkantaja ja Juokse, Melos\uff01\u2014 Yl\u00e4koululaiset mallintavat virtaa ja j\u00e4nnitett\u00e4 tosissaan","author":"\u6851\u5b50 \u7814","date":"2026\u5e745\u670830\u65e5","format":false,"excerpt":"Olen Kuwako Ken, Science Trainer. Jokainen p\u00e4iv\u00e4 o\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\/2023\/11\/33c373baf4bd5609ebe7cecf93cd2d00.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/33c373baf4bd5609ebe7cecf93cd2d00.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/33c373baf4bd5609ebe7cecf93cd2d00.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/33c373baf4bd5609ebe7cecf93cd2d00.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/33c373baf4bd5609ebe7cecf93cd2d00.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":65018,"url":"https:\/\/phys-edu.net\/wp\/?p=65018&lang=fi","url_meta":{"origin":65202,"position":1},"title":"N\u00e4e n\u00e4kym\u00e4t\u00f6n s\u00e4hk\u00f6! Kelan salaper\u00e4inen vaihe-ero","author":"\u6851\u5b50 \u7814","date":"2026\u5e747\u67082\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\/IMG_1790.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/IMG_1790.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/IMG_1790.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/IMG_1790.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":66291,"url":"https:\/\/phys-edu.net\/wp\/?p=66291&lang=fi","url_meta":{"origin":65202,"position":2},"title":"Salama sormenp\u00e4iss\u00e4si! Tiedett\u00e4 vai taikaa \u2013 plasmapallon salaisuus paljastuu (n\u00e4in ukkosenjohdatin toimii)","author":"\u6851\u5b50 \u7814","date":"2026\u5e748\u67088\u65e5","format":false,"excerpt":"Olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on kok\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\/a2838fd4decb1282b289e7289daa3e34.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/a2838fd4decb1282b289e7289daa3e34.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/a2838fd4decb1282b289e7289daa3e34.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/a2838fd4decb1282b289e7289daa3e34.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":62965,"url":"https:\/\/phys-edu.net\/wp\/?p=62965&lang=fi","url_meta":{"origin":65202,"position":3},"title":"Heit\u00e4 hyv\u00e4stit hehkulampuille! N\u00e4in virtapiiri yksinkertaistuu.","author":"\u6851\u5b50 \u7814","date":"2026\u5e745\u67082\u65e5","format":false,"excerpt":"T\u00e4ss\u00e4 puhuu tiedevalmentaja Kuwako Ken. Jokainen p\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\/2026\/05\/%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%88-2026-05-01-11.08.00.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/%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%88-2026-05-01-11.08.00.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/%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%88-2026-05-01-11.08.00.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/%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%88-2026-05-01-11.08.00.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/%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%88-2026-05-01-11.08.00.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/%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%88-2026-05-01-11.08.00.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":58275,"url":"https:\/\/phys-edu.net\/wp\/?p=58275&lang=fi","url_meta":{"origin":65202,"position":4},"title":"Miksi valo v\u00e4risee? Tyylikk\u00e4\u00e4n lampun k\u00e4tketty \u201cFlemingin vasemman k\u00e4den s\u00e4\u00e4nt\u00f6\u201d (Edison-lamput ja vibra-lamput)","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u67083\u65e5","format":false,"excerpt":"Tervehdys! Olen Ken Kuwako, tiedevalmentajasi. Jok\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\/df679687722d52b54be42808cae8f915.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":58942,"url":"https:\/\/phys-edu.net\/wp\/?p=58942&lang=fi","url_meta":{"origin":65202,"position":5},"title":"Moottori ja generaattori ovat saman kolikon kaksi puolta! Voiko moottori sytytt\u00e4\u00e4 lampun? Hauska tiedekoe koko perheelle","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670817\u65e5","format":false,"excerpt":"Tervehdys! Olen tiedevalmentaja Ken Kuwako. Jokain\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"N\u00e4ytt\u00f6kuva","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/02\/db8733d92f7f3130674ebd185db22008-300x168.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/12\/4f85c3960c3635913d27e2da5542c1c1.jpg","_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/65202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=65202"}],"version-history":[{"count":0,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/65202\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/36887"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=65202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=65202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=65202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}