{"id":60913,"date":"2026-02-27T05:08:04","date_gmt":"2026-02-26T20:08:04","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=60913"},"modified":"2026-02-27T05:08:04","modified_gmt":"2026-02-26T20:08:04","slug":"mita-kultalehtielektroskoopin-sisalla-oikein-tapahtuu-katso-varauksen-liike-animaationa-koe-staattisen-sahkon-ihme","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=60913&lang=fi","title":{"rendered":"Mit\u00e4 kultalehtielektroskoopin sis\u00e4ll\u00e4 oikein tapahtuu? Katso varauksen liike animaationa! (Koe staattisen s\u00e4hk\u00f6n ihme)"},"content":{"rendered":"<p style=\"text-align: center;\"><strong style=\"color: #339966;\">Hei! T\u00e4ss\u00e4 on luonnontiedevalmentaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on uusi koe!<\/strong><\/p>\n<p>Talvisena p\u00e4iv\u00e4n\u00e4 ovenkahvaan koskettaessa kuuluu \u201dr\u00e4ps!\u201d, ja villapaitaa riisuttaessa kuuluu r\u00e4tin\u00e4\u00e4&#8230; Kaikille tuttu staattinen s\u00e4hk\u00f6 on ilmi\u00f6, joka on l\u00e4sn\u00e4 aivan jokap\u00e4iv\u00e4isess\u00e4 arjessamme. Kuitenkin sen todellinen luonne on n\u00e4kym\u00e4t\u00f6n, ja se tuntuu usein melkein oikuttelevalta taikuudelta.<\/p>\n<p>Mutta mit\u00e4 jos voisit hallita t\u00e4t\u00e4 n\u00e4kym\u00e4t\u00f6nt\u00e4 voimaa ja n\u00e4hd\u00e4 sen omin silmin?<\/p>\n<p>T\u00e4ll\u00e4 kertaa esittelen mielenkiintoisen tieteellisen kokeen, jossa k\u00e4ytet\u00e4\u00e4n <strong>elektroskooppia<\/strong> \u2013 laitetta, joka tekee s\u00e4hk\u00f6st\u00e4 n\u00e4kyv\u00e4\u00e4 ja her\u00e4tt\u00e4\u00e4 uteliaisuuden. Tarvitset valmisteluun vain ilmapalloja tai muovisia alustoja. Tervetuloa tieteen taianomaiseen maailmaan!<\/p>\n<h2>Katso seuraava video!<\/h2>\n<p><span style=\"font-size: 14px;\">Kuten videolla n\u00e4kyy, <strong>metallilehdet aukeavat<\/strong> heti, kun viet jotain niiden l\u00e4helle!<\/span> <span style=\"font-size: 14px;\">Eik\u00f6 se n\u00e4yt\u00e4kin silt\u00e4, kuin ilmapallosta olisi tullut taikasauva?<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"\u9759\u96fb\u6c17\u3092\u691c\u51fa\u3059\u308b\u7b94\u691c\u96fb\u5668\u306e\u4e0d\u601d\u8b70\u3010\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u3011\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/T4-0f9Fh9Ro?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>T\u00e4m\u00e4n yksinkertaisen ilmi\u00f6n taakse k\u00e4tkeytyv\u00e4 kysymys \u201dmiksi?\u201d on paras sis\u00e4\u00e4nk\u00e4ynti tieteen maailmaan.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34712 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e41e18ba8987bf221a7253726acc6bfa.jpg\" alt=\"\" width=\"372\" height=\"356\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e41e18ba8987bf221a7253726acc6bfa.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e41e18ba8987bf221a7253726acc6bfa-300x287.jpg 300w\" sizes=\"auto, (max-width: 372px) 100vw, 372px\" \/><\/p>\n<p>Nyt on aika paljastaa t\u00e4m\u00e4n tempun salaisuus \u2013 tai pikemminkin selvitt\u00e4\u00e4 tieteelliset faktat yhdess\u00e4!<\/p>\n<h2>Mit\u00e4 staattinen s\u00e4hk\u00f6 oikeastaan on?<\/h2>\n<p>Ennen kuin syvennymme lehtien avautumisen arvoitukseen, puhutaan hieman siit\u00e4, mit\u00e4 staattinen s\u00e4hk\u00f6 todellisuudessa on.<\/p>\n<p>Kaikki ymp\u00e4rill\u00e4mme oleva koostuu pienist\u00e4 hiukkasista, joita kutsutaan atomeiksi. Atomin sis\u00e4ll\u00e4 on <strong>protoneja<\/strong>, joilla on positiivinen s\u00e4hk\u00f6varaus, sek\u00e4 <strong>elektroneja<\/strong>, joilla on negatiivinen varaus. Normaalisti positiivisten ja negatiivisten varausten m\u00e4\u00e4r\u00e4 on tasapainossa, ja aine on s\u00e4hk\u00f6isesti neutraali.<\/p>\n<p>Kuitenkin, kun kaksi esinett\u00e4 hankaa toisiaan vasten \u2013 kuten ilmapallo ja kangas \u2013 elektronit saattavat siirty\u00e4 esineest\u00e4 toiseen. T\u00e4m\u00e4 elektronien ep\u00e4tasapaino on juuri se, mit\u00e4 kutsumme staattiseksi s\u00e4hk\u00f6ksi. Jo muinaisessa Kreikassa tiedettiin, ett\u00e4 meripihkan (amber) hankaaminen houkuttelee h\u00f6yheni\u00e4. Kreikankielinen sana meripihkalle, <strong>\u0113lektron<\/strong>, onkin s\u00e4hk\u00f6n (electricity) kielellinen alkuper\u00e4.<\/p>\n<h2>Miksi lehdet aukeavat? \u2013 Seuraa n\u00e4kym\u00e4tt\u00f6mi\u00e4 elektroneja!<\/h2>\n<p>Nyt on aika ratkaista elektroskoopin mysteeri.<\/p>\n<h4>Tapaus 1: Kun tuomme l\u00e4helle positiivisen varauksen&#8230;<\/h4>\n<p>Otetaan ensin <strong>silkkikangas<\/strong>, jolla on hangattu ilmapalloa. Itse asiassa ilmapallo on vienyt t\u00e4lt\u00e4 kankaalta elektroneja, joten kankaassa on positiivinen varaus.<\/p>\n<p>Kun tuomme t\u00e4m\u00e4n kankaan elektroskoopin metallilevyn l\u00e4helle&#8230; metallissa vapaasti liikkuvat elektronit (negatiiviset varaukset) ajattelevat: \u201dJee, tuolla on jotain positiivista!\u201d ja ker\u00e4\u00e4ntyv\u00e4t levyn yl\u00e4osaan. T\u00e4t\u00e4 ilmi\u00f6t\u00e4 kutsutaan <strong>s\u00e4hk\u00f6staattiseksi induktioksi<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34765 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/abb4c4ea00c4b01c7bd4eded623ce9bd.jpg\" alt=\"\" width=\"337\" height=\"168\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/abb4c4ea00c4b01c7bd4eded623ce9bd.jpg 1310w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/abb4c4ea00c4b01c7bd4eded623ce9bd-300x149.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/abb4c4ea00c4b01c7bd4eded623ce9bd-1024x510.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/abb4c4ea00c4b01c7bd4eded623ce9bd-768x382.jpg 768w\" sizes=\"auto, (max-width: 337px) 100vw, 337px\" \/><\/p>\n<p>T\u00e4ll\u00f6in elektroskoopin alaosan metallilehdist\u00e4 katoavat elektronit, ja ne j\u00e4\u00e4v\u00e4t positiivisesti varautuneiksi. Kuten tied\u00e4mme, samanlaiset varaukset hylkiv\u00e4t toisiaan. Siksi lehdet sanovat toisilleen \u201dmene pois!\u201d ja aukeavat komeasti.<\/p>\n<h4>Tapaus 2: Kun tuomme l\u00e4helle negatiivisen varauksen&#8230;<\/h4>\n<p>Seuraavaksi tuodaan l\u00e4helle <strong>ilmapallo<\/strong>, joka on vastaanottanut elektroneja ja on siten negatiivisesti varautunut.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34717 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/bfecbd4780b4de048b836ebab4120011.jpg\" alt=\"\" width=\"307\" height=\"325\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/bfecbd4780b4de048b836ebab4120011.jpg 702w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/bfecbd4780b4de048b836ebab4120011-283x300.jpg 283w\" sizes=\"auto, (max-width: 307px) 100vw, 307px\" \/><\/p>\n<p>T\u00e4ll\u00e4 kertaa levyn l\u00e4helle saapuvat negatiiviset varaukset s\u00e4ik\u00e4ytt\u00e4v\u00e4t metallin elektronit, ja ne pakenevat alas lehtiin huutaen: \u201dK\u00e4\u00e4k, tuolta tulee negatiivisia hiukkasia!\u201d.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34764 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71.jpg\" alt=\"\" width=\"402\" height=\"197\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71.jpg 1336w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71-300x147.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71-1024x501.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71-768x376.jpg 768w\" sizes=\"auto, (max-width: 402px) 100vw, 402px\" \/><\/p>\n<p>T\u00e4m\u00e4n seurauksena lehdet t\u00e4yttyv\u00e4t negatiivisesta varauksesta. Koska negatiiviset varaukset hylkiv\u00e4t toisiaan, lehdet aukeavat j\u00e4lleen. Vaikka lopputulos on sama, elektronien draama laitteen sis\u00e4ll\u00e4 on t\u00e4ysin erilainen!<\/p>\n<h3>Pieni tietoisku: Ent\u00e4 jos kokeilemme magneettia?<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34716 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/1da1bb706687de82be17b462d8c8967a.jpg\" alt=\"\" width=\"274\" height=\"310\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/1da1bb706687de82be17b462d8c8967a.jpg 648w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/1da1bb706687de82be17b462d8c8967a-265x300.jpg 265w\" sizes=\"auto, (max-width: 274px) 100vw, 274px\" \/><\/p>\n<p style=\"text-align: center;\">Magneetti ei aiheuta reaktiota.<\/p>\n<p>Magneetin tuominen l\u00e4helle ei vaikuta lehtiin lainkaan. T\u00e4m\u00e4 osoittaa, ett\u00e4 staattisella s\u00e4hk\u00f6ll\u00e4 ja magnetismilla on erilaiset ominaisuudet. Elektroskooppi on nimens\u00e4 mukaisesti erinomainen etsiv\u00e4, joka tunnistaa vain staattisen s\u00e4hk\u00f6n.<\/p>\n<h2>Hallitse s\u00e4hk\u00f6\u00e4 sormenp\u00e4\u00e4ll\u00e4si! Maadoituksen ihme<\/h2>\n<p>Nyt p\u00e4\u00e4semme kokeen mielenkiintoisimpaan vaiheeseen. Kun lehdet ovat auki negatiivisen ilmapallon vaikutuksesta, kokeile koskettaa metallilevy\u00e4 varovasti sormellasi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34719 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/944685cd2f7a7b0e610f414820ade9ac.jpg\" alt=\"\" width=\"409\" height=\"502\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/944685cd2f7a7b0e610f414820ade9ac.jpg 650w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/944685cd2f7a7b0e610f414820ade9ac-244x300.jpg 244w\" sizes=\"auto, (max-width: 409px) 100vw, 409px\" \/><\/p>\n<p style=\"text-align: center;\">Kun kosketat levy\u00e4 sormellasi, lehdet sulkeutuvat.<\/p>\n<p>H\u00e4mm\u00e4stytt\u00e4v\u00e4\u00e4 kyll\u00e4, toisiaan hylkineet lehdet sulkeutuvat v\u00e4litt\u00f6m\u00e4sti. Mit\u00e4 ihmett\u00e4 tapahtui?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34766 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/6a6e182e2eb4c8a7e984a3d60ae4a85b.jpg\" alt=\"\" width=\"290\" height=\"251\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/6a6e182e2eb4c8a7e984a3d60ae4a85b.jpg 1018w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/6a6e182e2eb4c8a7e984a3d60ae4a85b-300x260.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/6a6e182e2eb4c8a7e984a3d60ae4a85b-768x665.jpg 768w\" sizes=\"auto, (max-width: 290px) 100vw, 290px\" \/><\/p>\n<p>Todellisuudessa lehtiin paenneet elektronit n\u00e4kiv\u00e4t sormesi ja pakenivat kehosi kautta maahan. Kehomme ja maapallo toimivat s\u00e4hk\u00f6lle valtavina pakopaikkoina (tai l\u00e4htein\u00e4). T\u00e4t\u00e4 kutsutaan <strong>maadoitukseksi<\/strong>. Kun elektronit poistuivat, lehdet palasivat s\u00e4hk\u00f6isesti neutraaleiksi ja sulkeutuivat.<\/p>\n<p>Ja t\u00e4ss\u00e4 tulee huipentuma: Ota sormi pois levylt\u00e4 ja siirr\u00e4 vasta sitten ilmapallo kauemmas&#8230;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34714 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/93fd4291d035eeded01b23093635dcb5.jpg\" alt=\"\" width=\"374\" height=\"277\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/93fd4291d035eeded01b23093635dcb5.jpg 1052w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/93fd4291d035eeded01b23093635dcb5-300x222.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/93fd4291d035eeded01b23093635dcb5-1024x759.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/93fd4291d035eeded01b23093635dcb5-768x569.jpg 768w\" sizes=\"auto, (max-width: 374px) 100vw, 374px\" \/><\/p>\n<p style=\"text-align: center;\">Kun ilmapallo poistetaan&#8230;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34715 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/7a67615ac3570858e1f824e0efc8aa30.jpg\" alt=\"\" width=\"379\" height=\"413\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/7a67615ac3570858e1f824e0efc8aa30.jpg 648w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/7a67615ac3570858e1f824e0efc8aa30-275x300.jpg 275w\" sizes=\"auto, (max-width: 379px) 100vw, 379px\" \/><\/p>\n<p style=\"text-align: center;\">Lehdet aukeavat uudelleen ja j\u00e4\u00e4v\u00e4t auki!<\/p>\n<p>T\u00e4ll\u00e4 kertaa lehdet j\u00e4\u00e4v\u00e4t auki, vaikka ilmapallo on kaukana! Miksi n\u00e4in tapahtuu?<\/p>\n<p>Katsotaanpa kaaviota:<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34764\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71.jpg\" alt=\"\" width=\"374\" height=\"183\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71.jpg 1336w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71-300x147.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71-1024x501.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/44f11e056cc13256bcfad438ba97ac71-768x376.jpg 768w\" sizes=\"auto, (max-width: 374px) 100vw, 374px\" \/><\/p>\n<p>Kun elektronit pakenivat sormen kautta, koko laitteesta tuli elektronivajeinen (positiivinen). Kuitenkin niin kauan kuin negatiivinen ilmapallo oli l\u00e4hell\u00e4, positiiviset varaukset pysyiv\u00e4t levyn yl\u00e4osassa.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34767\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/f77a8cd92c3aaabcab8379d4390afe5c.jpg\" alt=\"\" width=\"306\" height=\"304\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/f77a8cd92c3aaabcab8379d4390afe5c.jpg 808w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/f77a8cd92c3aaabcab8379d4390afe5c-150x150.jpg 150w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/f77a8cd92c3aaabcab8379d4390afe5c-768x764.jpg 768w\" sizes=\"auto, (max-width: 306px) 100vw, 306px\" \/><\/p>\n<p>Kun sitten poistit ilmapallon&#8230;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34768\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/585d726ab9c2c27b2866e4ab53d18dad.jpg\" alt=\"\" width=\"307\" height=\"297\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/585d726ab9c2c27b2866e4ab53d18dad.jpg 794w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/585d726ab9c2c27b2866e4ab53d18dad-300x290.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/585d726ab9c2c27b2866e4ab53d18dad-768x743.jpg 768w\" sizes=\"auto, (max-width: 307px) 100vw, 307px\" \/><\/p>\n<p>Levylle kertynyt positiivinen varaus levisi tasaisesti koko laitteeseen. T\u00e4m\u00e4n seurauksena my\u00f6s lehdet varautuivat positiivisesti, alkoivat hylki\u00e4 toisiaan ja aukenivat taas. Onnistuit juuri varauttamaan koko laitteen s\u00e4hk\u00f6ll\u00e4! Aika hauskaa, eik\u00f6?<\/p>\n<p>Voit kokeilla, mit\u00e4 tapahtuu, jos teet saman kokeen kankaalla, jolla on positiivinen varaus. Pystytk\u00f6 varauttamaan laitteen negatiivisesti? Kokeile ja kuvittele elektronien liikett\u00e4!<\/p>\n<p>L\u00f6yd\u00e4t tarkemman selityksen my\u00f6s t\u00e4lt\u00e4 videolta:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35887 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/05\/1e3a883c53d05467442090544231e07d.jpg\" alt=\"\" width=\"56\" height=\"72\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/09\/cf19b93e3130498a164a3d04a076f96c.pdf\">\u30fbMoniste (elektroskooppi)<\/a><\/p>\n<p><iframe loading=\"lazy\" title=\"\u30a2\u30cb\u30e1\u3067\u308f\u304b\u308b\uff01\u7b94\u691c\u96fb\u5668\u3010\u5b9f\u9a13\u4ed8\u304d\u7269\u7406\u6388\u696d \u30d7\u30ea\u30f3\u30c8\u3042\u308a\u3011\uff08\u9759\u96fb\u6c17\u306e\u3075\u3057\u304e\u3092\u4f53\u611f\u3059\u308b\uff09\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/R4VQ0bFWAA0?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>Lis\u00e4\u00e4 vauhtia: Staattisen s\u00e4hk\u00f6n generaattori (Van de Graaff)!<\/h3>\n<p>Jos haluat kokea viel\u00e4 voimakkaampaa s\u00e4hk\u00f6\u00e4, suosittelen kokeita Van de Graaff -generaattorilla. T\u00e4m\u00e4 laite on itse asiassa sukua hiukkaskiihdyttimille, joita on k\u00e4ytetty ydintutkimuksessa \u2013 se on siis melkoinen kone!<\/p>\n<p><span style=\"font-size: 14px;\">T\u00e4m\u00e4 osio sis\u00e4lt\u00e4\u00e4 kokeita, joita olen tehnyt japanilaisissa televisio-ohjelmissa tunnettujen julkkisten kanssa.<\/span> <a style=\"font-size: 14px;\" href=\"https:\/\/phys-edu.net\/wp\/?p=34632\">Lue lis\u00e4\u00e4 t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44403 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/81e3d18f4fe9c4a1576a8fc1ce7bc74d.jpg\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/81e3d18f4fe9c4a1576a8fc1ce7bc74d.jpg 1348w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/81e3d18f4fe9c4a1576a8fc1ce7bc74d-300x166.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/81e3d18f4fe9c4a1576a8fc1ce7bc74d-1024x568.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/81e3d18f4fe9c4a1576a8fc1ce7bc74d-768x426.jpg 768w\" alt=\"\" width=\"315\" height=\"175\" \/><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"Rsv7Zx1IF3\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=34632\">\u3010\u79d1\u5b66\u76e3\u4fee\u3011\u30d3\u30ea\u30d3\u30ea\u96fb\u6c17\u8cde\u72b6!?\u5e83\u702c\u3059\u305a\u3055\u3093\u3068\u4f53\u9a13\u3057\u305f\u9759\u96fb\u6c17\u5b9f\u9a13\u6388\u696d\uff08\u6cb8\u9a30\u30ef\u30fc\u30c9\uff11\uff10\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8221;\u3010\u79d1\u5b66\u76e3\u4fee\u3011\u30d3\u30ea\u30d3\u30ea\u96fb\u6c17\u8cde\u72b6!?\u5e83\u702c\u3059\u305a\u3055\u3093\u3068\u4f53\u9a13\u3057\u305f\u9759\u96fb\u6c17\u5b9f\u9a13\u6388\u696d\uff08\u6cb8\u9a30\u30ef\u30fc\u30c9\uff11\uff10\uff09&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=34632&#038;embed=true#?secret=VVgKPizKel#?secret=Rsv7Zx1IF3\" data-secret=\"Rsv7Zx1IF3\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p><strong>Huomio! Van de Graaff -generaattoria k\u00e4ytett\u00e4ess\u00e4 on oltava eritt\u00e4in varovainen, ja kokeet on teht\u00e4v\u00e4 asiantuntijan valvonnassa.<\/strong> Jos olet kiinnostunut yhteisty\u00f6st\u00e4 (tuntien pit\u00e4minen, konsultointi jne.), otathan yhteytt\u00e4 <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<p style=\"text-align: center;\">\u3010Erikoisartikkeli\u3011<a href=\"https:\/\/phys-edu.net\/wp\/?p=34487\">Koukuttavat staattisen s\u00e4hk\u00f6n kokeet!<\/a><\/p>\n<p><a href=\"https:\/\/phys-edu.net\/wp\/?p=34487\"><img loading=\"lazy\" decoding=\"async\" class=\"lazy alignnone wp-image-34540 aligncenter lazy-loaded\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/IMG_2511-1.jpg\" sizes=\"auto, (max-width: 287px) 100vw, 287px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/IMG_2511-1.jpg 1000w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/IMG_2511-1-300x225.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/IMG_2511-1-768x576.jpg 768w\" alt=\"\" width=\"287\" height=\"215\" data-lazy-type=\"image\" data-lazy-src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/IMG_2511-1.jpg\" \/><\/a><\/p>\n<h3>Ota yhteytt\u00e4<\/h3>\n<p class=\"p1\">Tuo tieteen ihmeet ja hauskuus l\u00e4hemm\u00e4ksi! Olen koonnut helppoja ja hauskoja kokeita, joita voit kokeilla kotona.<br \/>\n\u30fbLis\u00e4tietoa yll\u00e4pit\u00e4j\u00e4st\u00e4 Ken Kuwakosta <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n\u30fbYhteisty\u00f6pyynn\u00f6t (kirjoittaminen, luennot, kokeilupajat jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbSeuraa p\u00e4ivityksi\u00e4 <a href=\"https:\/\/x.com\/kuwako\">X-palvelussa<\/a>!<\/span><\/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=62612&#038;lang=hi\" aria-label=\"\u090f\u0915 LED \u0914\u0930 \u0938\u093e\u0924 \u0930\u0902\u0917! \u0905\u092a\u0928\u0940 \u0939\u0925\u0947\u0932\u0940 \u092a\u0930 \u0938\u0940\u0916\u0947\u0902 &#8216;\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0930\u0902\u0917&#8217; \u0915\u093e \u091c\u093e\u0926\u0942\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62612&#038;lang=hi\">\u090f\u0915 LED \u0914\u0930 \u0938\u093e\u0924 \u0930\u0902\u0917! \u0905\u092a\u0928\u0940 \u0939\u0925\u0947\u0932\u0940 \u092a\u0930 \u0938\u0940\u0916\u0947\u0902 &#8216;\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0930\u0902\u0917&#8217; \u0915\u093e \u091c\u093e\u0926\u0942<\/a><time datetime=\"2026-04-21T04:57:42+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62610&#038;lang=es\" aria-label=\"\u00bfUn solo LED para siete colores? \u00a1Experimenta con los &#8220;Colores Primarios de la Luz&#8221; en la palma de tu mano!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62610&#038;lang=es\">\u00bfUn solo LED para siete colores? \u00a1Experimenta con los &#8220;Colores Primarios de la Luz&#8221; en la palma de tu mano!<\/a><time datetime=\"2026-04-21T04:57:30+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62608&#038;lang=fi\" aria-label=\"Yksi LED, seitsem\u00e4n v\u00e4ri\u00e4? Koe valon v\u00e4rioppi k\u00e4mmenell\u00e4si!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62608&#038;lang=fi\">Yksi LED, seitsem\u00e4n v\u00e4ri\u00e4? Koe valon v\u00e4rioppi k\u00e4mmenell\u00e4si!<\/a><time datetime=\"2026-04-21T04:57:05+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62606&#038;lang=zh\" aria-label=\"\u4e00\u9846\u5c31\u8b8a\u4e03\u7a2e\u984f\u8272\uff1f\u7528\u4e09\u8272LED\u5728\u624b\u638c\u5fc3\u5927\u73a9\u300c\u5149\u7684\u4e09\u539f\u8272\u300d\uff01\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62606&#038;lang=zh\">\u4e00\u9846\u5c31\u8b8a\u4e03\u7a2e\u984f\u8272\uff1f\u7528\u4e09\u8272LED\u5728\u624b\u638c\u5fc3\u5927\u73a9\u300c\u5149\u7684\u4e09\u539f\u8272\u300d\uff01<\/a><time datetime=\"2026-04-21T04:56:29+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62603&#038;lang=ko\" aria-label=\"\ub2e8 \ud558\ub098\ub85c 7\uac00\uc9c0 \ubcc0\ud654?! 3\uc0c9 LED\ub85c \uc990\uae30\ub294 \u2018\ube5b\uc758 \uc0bc\uc6d0\uc0c9\u2019 \uc190\ubc14\ub2e5 \uc2e4\ud5d8!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62603&#038;lang=ko\">\ub2e8 \ud558\ub098\ub85c 7\uac00\uc9c0 \ubcc0\ud654?! 3\uc0c9 LED\ub85c \uc990\uae30\ub294 \u2018\ube5b\uc758 \uc0bc\uc6d0\uc0c9\u2019 \uc190\ubc14\ub2e5 \uc2e4\ud5d8!<\/a><time datetime=\"2026-04-21T04:56:14+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62600&#038;lang=en\" aria-label=\"One LED, Seven Colors? Master the &#8220;Primary Colors of Light&#8221; with This Palm-Sized Experiment!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62600&#038;lang=en\">One LED, Seven Colors? Master the &#8220;Primary Colors of Light&#8221; with This Palm-Sized Experiment!<\/a><time datetime=\"2026-04-21T04:53:26+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62577\" aria-label=\"\u3010\u79d1\u5b66\u76e3\u4fee\u3011\u70ad\u9178\u7f36\u3092\u632f\u3063\u3061\u3083\u3063\u305f\uff01\u30c7\u30b3\u30d4\u30f3\u88cf\u6280\u306f\u672c\u5f53\u306b\u52b9\u304f\uff1f1,000\u672c\u306e\u30d3\u30fc\u30eb\u3067\u8a66\u3057\u305f\u79d1\u5b66\u306e\u7d50\u8ad6\u300c\u6559\u79d1\u66f8\u3067\u7fd2\u3063\u305f\u30a2\u30ec\u300d\uff08\u30c6\u30ec\u30d3\u671d\u65e5\uff09\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-21-5.41.38-150x150.jpeg\" 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=62577\">\u3010\u79d1\u5b66\u76e3\u4fee\u3011\u70ad\u9178\u7f36\u3092\u632f\u3063\u3061\u3083\u3063\u305f\uff01\u30c7\u30b3\u30d4\u30f3\u88cf\u6280\u306f\u672c\u5f53\u306b\u52b9\u304f\uff1f1,000\u672c\u306e\u30d3\u30fc\u30eb\u3067\u8a66\u3057\u305f\u79d1\u5b66\u306e\u7d50\u8ad6\u300c\u6559\u79d1\u66f8\u3067\u7fd2\u3063\u305f\u30a2\u30ec\u300d\uff08\u30c6\u30ec\u30d3\u671d\u65e5\uff09<\/a><time datetime=\"2026-04-21T04:13:26+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=34369\" aria-label=\"\u305f\u3063\u305f1\u3064\u3067\u4e03\u5909\u5316\uff1f\uff13\u8272LED\u3067\u300c\u5149\u306e\u4e09\u539f\u8272\u300d\u3092\u624b\u306e\u3072\u3089\u5b9f\u9a13\uff01\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=34369\">\u305f\u3063\u305f1\u3064\u3067\u4e03\u5909\u5316\uff1f\uff13\u8272LED\u3067\u300c\u5149\u306e\u4e09\u539f\u8272\u300d\u3092\u624b\u306e\u3072\u3089\u5b9f\u9a13\uff01<\/a><time datetime=\"2026-04-21T04:00:32+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62553&#038;lang=fi\" aria-label=\"K\u00e4vyist\u00e4 taikaa! Askartele ekologinen joulukuusi ja opi kasvien viisauksia\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/12\/2-150x150.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=62553&#038;lang=fi\">K\u00e4vyist\u00e4 taikaa! Askartele ekologinen joulukuusi ja opi kasvien viisauksia<\/a><time datetime=\"2026-04-20T04:48:25+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670820\u65e5<\/time><\/li>\n<\/ul>&nbsp;","protected":false},"excerpt":{"rendered":"<p>Hei! T\u00e4ss\u00e4 on luonnontiedevalmentaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on uusi koe! Talvisena p\u00e4iv\u00e4n\u00e4 ovenkahvaan kos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":48789,"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":"","footnotes":""},"categories":[1630],"tags":[],"class_list":["post-60913","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\/2024\/09\/fa7b885e076c9ccb993af50f0c06fe6b.jpg","jetpack-related-posts":[{"id":61064,"url":"https:\/\/phys-edu.net\/wp\/?p=61064&lang=fi","url_meta":{"origin":60913,"position":0},"title":"Muuttuuko maailma, kun n\u00e4k\u00f6kulma vaihtuu? Py\u00f6riv\u00e4 kamera tallensi \u201ckeskipakovoiman\u201d ratkaisevan hetken","author":"\u6851\u5b50 \u7814","date":"2026\u5e743\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\/2020\/07\/08ecb26584b7af7d470528efdfbb2217.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/07\/08ecb26584b7af7d470528efdfbb2217.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/07\/08ecb26584b7af7d470528efdfbb2217.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/07\/08ecb26584b7af7d470528efdfbb2217.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/07\/08ecb26584b7af7d470528efdfbb2217.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":59364,"url":"https:\/\/phys-edu.net\/wp\/?p=59364&lang=fi","url_meta":{"origin":60913,"position":1},"title":"Voiko grillihiilist\u00e4 tuottaa s\u00e4hk\u00f6\u00e4? 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