{"id":54977,"date":"2025-10-26T05:45:12","date_gmt":"2025-10-25T20:45:12","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=54977"},"modified":"2025-10-26T05:45:12","modified_gmt":"2025-10-25T20:45:12","slug":"paljastamme-sahk-ilmion-salaisuuden-150-000-voltin-van-de-graaff-generaattorin-hammastyttava-totuus","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=54977&lang=fi","title":{"rendered":"Paljastamme \u201cS\u00e4hk!\u201d-ilmi\u00f6n salaisuuden \u2013 150 000 voltin Van de Graaff -generaattorin h\u00e4mm\u00e4stytt\u00e4v\u00e4 totuus!"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\">Olen Ken Kuwako, tiedekouluttaja. Joka p\u00e4iv\u00e4 on koe.<\/span><\/p>\n<p style=\"text-align: left;\">Talvella, kun kosket ovenkahvaan, tunnet sen tutun &#8220;t\u00e4r\u00e4hdyksen&#8221; ja sen kirpaisee, tai kuulet ne r\u00e4tisev\u00e4t \u00e4\u00e4net, kun riisut villapaidan. Kaikki t\u00e4m\u00e4 on aineen kyky\u00e4 varastoida s\u00e4hk\u00f6\u00e4 \u2013 staattisen s\u00e4hk\u00f6n temppuja. T\u00e4n\u00e4\u00e4n esittelen hieman salaper\u00e4isen, mutta \u00e4\u00e4rimm\u00e4isen hauskan tiedelaitteen, jonka avulla voimme tarkoituksella luoda t\u00e4t\u00e4 s\u00e4hk\u00f6\u00e4 ja jopa hallita sit\u00e4 (ehk\u00e4?).<\/p>\n<h3>&#8220;T\u00e4r\u00e4hdyksen&#8221; hallintaa? Mystinen pallo: Van de Graaff<\/h3>\n<p>Laitteen nimi on &#8220;<b>Van de Graaff<\/b>&#8220;. Etk\u00f6 ole n\u00e4hnyt tiedelaboratoriossa tai museossa, kuinka ihmisen hiukset nousevat pystyyn heid\u00e4n koskettaessaan hopeista palloa? Juuri se! T\u00e4m\u00e4 hieman hankala nimi juontaa juurensa itse keksij\u00e4lt\u00e4, tohtori <a href=\"https:\/\/ja.wikipedia.org\/wiki\/\u30ed\u30d0\u30fc\u30c8\u30fb\u30b8\u30a7\u30df\u30bd\u30f3\u30fb\u30f4\u30a1\u30f3\u30fb\u30c7\u30fb\u30b0\u30e9\u30d5\"><b>Robert Jemison Van de Graaffilta<\/b><\/a>.<\/p>\n<p>Mielenkiintoista on, ett\u00e4 t\u00e4t\u00e4 ei alun perin rakennettu tiedetuntien leluksi. Tohtori kehitti t\u00e4m\u00e4n korkeaj\u00e4nnitelaitteen osana &#8220;hiukkaskiihdytint\u00e4&#8221;, jolla hiukkasia isket\u00e4\u00e4n atomiytimiin suurella nopeudella. Toisin sanoen, se oli alun perin huipputason tutkimusv\u00e4line atomimaailman tutkimiseen! (Jos olet kiinnostunut, etsi &#8221; <a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%AD%E3%83%90%E3%83%BC%E3%83%88%E3%83%BB%E3%82%B8%E3%82%A7%E3%83%9F%E3%82%BD%E3%83%B3%E3%83%BB%E3%83%B4%E3%82%A1%E3%83%B3%E3%83%BB%E3%83%87%E3%83%BB%E3%82%B0%E3%83%A9%E3%83%95\"><b>Van de Graaffin kiihdytin<\/b><\/a>&#8220;, niin n\u00e4et kuinka mahtavasta laitteesta on kyse!)<\/p>\n<p>(Muuten, Edo-kauden staattisen s\u00e4hk\u00f6n generaattorin &#8220;Erekiterun&#8221; mekanismi on koottu t\u00e4h\u00e4n.)<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"jX3cS4u6Rr\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=34689\">\u300c\u9759\u96fb\u6c17\u300d\u306e\u79d1\u5b66\u3068\u3001\u6c5f\u6238\u6642\u4ee3\u306b\u300c\u5996\u8853\u300d\u3068\u547c\u3070\u308c\u305f\u5b9f\u9a13\u306e\u8a71\uff08\u30d0\u30f3\u30c7\u30b0\u30e9\u30d5\u30fb\u30a8\u30ec\u30ad\u30c6\u30eb\u30fb\u96f7\u96fb\u30d3\u30f3\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;\u300c\u9759\u96fb\u6c17\u300d\u306e\u79d1\u5b66\u3068\u3001\u6c5f\u6238\u6642\u4ee3\u306b\u300c\u5996\u8853\u300d\u3068\u547c\u3070\u308c\u305f\u5b9f\u9a13\u306e\u8a71\uff08\u30d0\u30f3\u30c7\u30b0\u30e9\u30d5\u30fb\u30a8\u30ec\u30ad\u30c6\u30eb\u30fb\u96f7\u96fb\u30d3\u30f3\uff09&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=34689&#038;embed=true#?secret=LUHpXWedV3#?secret=jX3cS4u6Rr\" data-secret=\"jX3cS4u6Rr\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>150 000 voltin maailma!<\/h3>\n<p>Minulla on henkil\u00f6kohtaisesti <b>Narikan valmistama Van de Graaff<\/b>. Se pystyy tuottamaan jopa 150 000 voltin j\u00e4nnitteen! (Ostin sen salaa perheelt\u00e4ni, mutta t\u00e4m\u00e4n kokoinen laite&#8230; se paljastui heti).<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/amzn.to\/4hvzUQl\">Saatavilla my\u00f6s Amazonista<\/a><\/p>\n<p>Kuullessasi 150 000 volttia, saatat ajatella: &#8220;Vaarallista s\u00e4hk\u00f6iskun sattuessa!&#8221; Mutta vaikka staattisen s\u00e4hk\u00f6n j\u00e4nnite (voltit) on korkea, virtaava s\u00e4hk\u00f6m\u00e4\u00e4r\u00e4 (ampeerit) on \u00e4\u00e4rimm\u00e4isen pieni, joten vaikka se tuntuu t\u00e4r\u00e4hdyksen\u00e4, suurta vaaraa ei ole. (Tietenkin heikkohermoisten tai syd\u00e4mentahdistinta k\u00e4ytt\u00e4vien on oltava varovaisia!) Yleens\u00e4 staattisen s\u00e4hk\u00f6n kokeet onnistuvat huonosti muulloin kuin talvisina, kuivina p\u00e4ivin\u00e4, mutta t\u00e4m\u00e4 laite on niin tehokas, ett\u00e4 kokeita voi tehd\u00e4 r\u00e4tisten ja paukkuen jopa kosteana p\u00e4iv\u00e4n\u00e4.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"lazy alignnone size-medium wp-image-22874 lazy-loaded\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f-300x246.jpg\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f-300x246.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f.jpg 371w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2015-10-06 23.21.10\" width=\"300\" height=\"246\" data-lazy-type=\"image\" data-lazy-src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f-300x246.jpg\" data-lazy-srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f-300x246.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/18f96bf741574f73a18c387af06b245f.jpg 371w\" data-lazy-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Van de Graaffia k\u00e4ytt\u00e4m\u00e4ll\u00e4 voit tehd\u00e4 kokeita, joissa hiukset nousevat pystyyn tai ker\u00e4tty s\u00e4hk\u00f6 purkautuu. Esimerkiksi, kun kosket Van de Graaffiin k\u00e4dell\u00e4si, s\u00e4hk\u00f6 varastoituu kehoosi, ja se purkautuu sormenp\u00e4\u00e4st\u00e4si &#8220;napsahduksena&#8221;. Hy\u00f6dynt\u00e4m\u00e4ll\u00e4 t\u00e4t\u00e4 mekanismia, voit tehd\u00e4 monia hauskoja staattisen s\u00e4hk\u00f6n kokeita!<\/p>\n<h3>Yll\u00e4tt\u00e4v\u00e4n yksinkertainen? Van de Graaffin &#8220;sisus&#8221;<\/h3>\n<p>Van de Graaff n\u00e4ytt\u00e4\u00e4 hieman &#8220;hullun tieteilij\u00e4n&#8221; laitteelta, mutta mit\u00e4 sen sis\u00e4ll\u00e4 on? Itse asiassa t\u00e4m\u00e4n pallon voi avata. Kurkataan sis\u00e4\u00e4n&#8230;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-29155 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/91940d7d58bddb1d8bcfe4b2f3105907.png\" alt=\"\" width=\"622\" height=\"429\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/91940d7d58bddb1d8bcfe4b2f3105907.png 884w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/91940d7d58bddb1d8bcfe4b2f3105907-300x207.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/09\/91940d7d58bddb1d8bcfe4b2f3105907-768x530.png 768w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/p>\n<p>Yll\u00e4tyitk\u00f6? Kyll\u00e4, sis\u00e4ll\u00e4 on vain kuljetushihnan kaltainen mekanismi. Jos tarkistan omistamani Narikan <a href=\"http:\/\/www.rika.com\/product\/prod_detail1.php?catalog_no=B10-1323\">Van de Graaffin tekniset tiedot heid\u00e4n verkkosivuiltaan&#8230;<\/a><\/p>\n<blockquote><p>Korkeaj\u00e4nnite-staattinen s\u00e4hk\u00f6 tuotetaan johtamalla kumitelan avulla syntynyt staattinen s\u00e4hk\u00f6 kupuun (ker\u00e4yspallo), miss\u00e4 se varastoidaan.<\/p>\n<p>\u25cf Syntyv\u00e4 j\u00e4nnite: enint\u00e4\u00e4n noin 150 000 V \u25cf Purkauset\u00e4isyys (noin): enint\u00e4\u00e4n 110 mm (kosteus 40 %), v\u00e4hint\u00e4\u00e4n 60 mm sadekaudella (mitattu arvo) \u25cf Ker\u00e4yspallo: \u03c6 noin 215 mm \u25cf Purkauspallo: \u03c6 noin 115 mm \u25cf Virtal\u00e4hde: AC100V 50\/60Hz \u25cf Koko: noin 270\u00d7210\u00d7620 mm (ker\u00e4yspallo), noin 150\u00d7130\u00d7490 mm (purkauspallo) \u25cf Paino: noin 5,6 kg<\/p><\/blockquote>\n<h3>Van de Graaffin syd\u00e4n! S\u00e4hk\u00f6n &#8220;kuljetuksen&#8221; h\u00e4mm\u00e4stytt\u00e4v\u00e4 mekanismi<\/h3>\n<p>Van de Graaffin periaate on lyhyesti sanottuna: &#8220;Luodaan s\u00e4hk\u00f6\u00e4 kitkan avulla ja varastoidaan se palloon hihnan avulla&#8221;. Kun Van de Graaffin pallo avataan, sis\u00e4ll\u00e4 n\u00e4kyy kumilenkki ja kaksi rullaa, yksi ylh\u00e4\u00e4ll\u00e4 ja yksi alhaalla. Itse asiassa juuri se, ett\u00e4 n\u00e4iden kahden rullan &#8220;materiaali&#8221; on erilainen, on Van de Graaffin suurin salaisuus. Katsotaanpa, miten s\u00e4hk\u00f6 varastoituu siit\u00e4 hetkest\u00e4 l\u00e4htien, kun virta kytket\u00e4\u00e4n p\u00e4\u00e4lle, kuljetushihnan liikkeen mukana.<\/p>\n<h4>\u2460 [Alaosa] Hankaa ja &#8220;luo&#8221; s\u00e4hk\u00f6\u00e4 (miinuksen synty)<\/h4>\n<p>Kun kuljetushihna alkaa liikkua, kumilenkki hankaa voimakkaasti alatelan A (akryylihartsista valmistettu) kanssa. Aineilla on j\u00e4rjestys sen suhteen, onko niill\u00e4 taipumus muuttua hankaamalla &#8220;positiivisiksi&#8221; vai &#8220;negatiivisiksi&#8221;. T\u00e4t\u00e4 kutsutaan &#8220;s\u00e4hk\u00f6istymisj\u00e4rjestykseksi&#8221;.<\/p>\n<p>Kumin ja akryylihartsin tapauksessa akryylihartsilla on taipumus muuttua positiiviseksi, ja kumilla negatiiviseksi. Toisin sanoen negatiivinen s\u00e4hk\u00f6 (elektronit) siirtyy akryylihartsista kumilenkkiin. T\u00e4m\u00e4n seurauksena kumilenkki varautuu negatiivisesti (\u2013).<\/p>\n<h4>\u2461 [Nousu] Kuljeta ja &#8220;varastoi&#8221; s\u00e4hk\u00f6\u00e4 (palloon)<\/h4>\n<p>Negatiivisella (\u2013) s\u00e4hk\u00f6ll\u00e4 lastattu kumilenkki nousee nopeasti kuin kuljetushihna. Se saapuu yl\u00e4p\u00e4\u00e4n pallon sis\u00e4ll\u00e4 olevaan metalliseen &#8220;ker\u00e4yslevyyn&#8221;. T\u00e4ll\u00f6in hihnan tuoma negatiivinen s\u00e4hk\u00f6 (elektronit) siirtyy metalliseen ker\u00e4yslevyyn purkautumalla r\u00e4tisten. Koska elektronit voivat liikkua vapaasti metallin sis\u00e4ll\u00e4, ne levi\u00e4v\u00e4t hetkess\u00e4 koko palloon ja varastoituvat sinne.<\/p>\n<h4>\u2462 [Yl\u00e4osa] Hankaa ja &#8220;nollaa&#8221; s\u00e4hk\u00f6 (plussan synty)<\/h4>\n<p>No niin, s\u00e4hk\u00f6n siirretty\u00e4\u00e4n &#8220;tyhj\u00e4ksi&#8221; tullut kumilenkki k\u00e4\u00e4ntyy ja laskeutuu alas. T\u00e4ll\u00f6in se hankaa yl\u00e4telaa B (valmistettu PVC-hartsista) vasten. T\u00e4ss\u00e4 &#8220;s\u00e4hk\u00f6istymisj\u00e4rjestys&#8221; astuu j\u00e4lleen kuvaan! Uusi kumppani on PVC-hartsi. PVC-hartsilla on kumia &#8220;viel\u00e4kin suurempi taipumus tulla negatiiviseksi&#8221;. Silloin, toisin kuin aiemmin, negatiivinen s\u00e4hk\u00f6 (elektronit) varastetaan kumilenkilt\u00e4 PVC-hartsiin. Elektronit menett\u00e4nyt kumilenkki varautuu suhteellisesti positiivisesti (+).<\/p>\n<h4>\u2463 [Lasku] Kuljetaan my\u00f6s vastakkainen s\u00e4hk\u00f6 (tukijalkaan)<\/h4>\n<p>Positiivisesti (+) varautunut kumilenkki laskeutuu suoraan alaosaan. Saavuttuaan ala-alueella olevaan toiseen ker\u00e4yslevyyn, se siirt\u00e4\u00e4 positiivisen s\u00e4hk\u00f6n sinne. T\u00e4m\u00e4 positiivinen s\u00e4hk\u00f6 varastoituu Van de Graaffin &#8220;tukijalkaan&#8221; (jalustaosa).<\/p>\n<h4>\u2464 [Toistuva sykli] Ja kohti korkeaa j\u00e4nnitett\u00e4&#8230;<\/h4>\n<p>Lenkki koskettaa suoraan alarullaa A (akryylihartsi) ja palaa takaisin vaiheeseen \u2460, jossa se &#8220;ker\u00e4\u00e4 miinuksen (\u2013)&#8221;. T\u00e4m\u00e4 sykli: &#8220;\u2460 Kuljeta miinus \u2192 \u2461 Varastoi palloon \u2192 \u2462 Kuljeta plussa \u2192 \u2463 Varastoi tukijalkaan&#8221; toistuu moottorin avulla suurella nopeudella.<\/p>\n<p>T\u00e4m\u00e4n seurauksena yl\u00e4p\u00e4\u00e4n palloon varastoituu yh\u00e4 enemm\u00e4n negatiivista (\u2013) s\u00e4hk\u00f6\u00e4, ja alap\u00e4\u00e4n tukijalkaan yh\u00e4 enemm\u00e4n positiivista (+) s\u00e4hk\u00f6\u00e4. Kun negatiivinen ja positiivinen s\u00e4hk\u00f6 ker\u00e4\u00e4ntyv\u00e4t suuria m\u00e4\u00e4ri\u00e4 eri paikkoihin, niiden v\u00e4lille syntyy voimakas &#8220;halu k\u00e4ytt\u00e4\u00e4 s\u00e4hk\u00f6\u00e4&#8221; (j\u00e4nnite), joka johtaa jopa 150 000 voltin korkeaan j\u00e4nnitteeseen.<\/p>\n<h4>Staattisella s\u00e4hk\u00f6ll\u00e4 voidaan luoda n\u00e4in voimakasta energiaa yhdist\u00e4m\u00e4ll\u00e4 pelk\u00e4n hankaamisen lis\u00e4ksi &#8220;materiaalin valinta&#8221; ja &#8220;kuljetusmekanismi&#8221;. Todellista tieteellist\u00e4 oivallusta!<\/h4>\n<p>T\u00e4m\u00e4 on usein v\u00e4\u00e4rinymm\u00e4rretty: elektronit eiv\u00e4t virtaa pistorasiasta sis\u00e4\u00e4n. Mekanismi on yll\u00e4tt\u00e4v\u00e4n yksinkertainen. Pistorasian virtaa k\u00e4ytet\u00e4\u00e4n vain moottorin py\u00f6ritt\u00e4miseen, ja s\u00e4hk\u00f6 itsess\u00e4\u00e4n syntyy &#8220;kitkasta&#8221;.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/web.thn.jp\/ninjinhouse\/r-s-vandegraaff.html\">Tarkempi mekanismi on kuvattu t\u00e4\u00e4ll\u00e4<\/a>.<\/p>\n<h3>Koe! Onko palloon varastoitunut s\u00e4hk\u00f6 + vai \u2013?<\/h3>\n<p>Emme voi tiet\u00e4\u00e4 varmasti ennen kuin kokeilemme! Siksi tutkimme, onko t\u00e4m\u00e4n staattisen s\u00e4hk\u00f6n generaattorin yl\u00e4pallo varautunut positiivisesti vai negatiivisesti.<\/p>\n<p>https:\/\/youtu.be\/1u3j8XRYNrg<\/p>\n<p>K\u00e4yt\u00e4mme &#8220;ilmapalloa&#8221;. <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34700 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/2916a0c67d435d30dc22ad4d816cd1d8.jpg\" alt=\"\" width=\"401\" height=\"294\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/2916a0c67d435d30dc22ad4d816cd1d8.jpg 870w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/2916a0c67d435d30dc22ad4d816cd1d8-300x220.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/2916a0c67d435d30dc22ad4d816cd1d8-768x563.jpg 768w\" sizes=\"auto, (max-width: 401px) 100vw, 401px\" \/><\/p>\n<p style=\"text-align: center;\">Hankaamalla ilmapalloa esimerkiksi silkkipaperilla, ilmapallo varautuu negatiivisesti.<\/p>\n<p>Aineilla on s\u00e4hk\u00f6n &#8220;+&#8221; ja &#8220;\u2013&#8221; varauksia, ja kun eri materiaaleja hierotaan yhteen, negatiivinen s\u00e4hk\u00f6 (elektronit) pyrkii siirtym\u00e4\u00e4n. Ilmapallon ja silkkipaperin tapauksessa elektronit siirtyv\u00e4t silkkipaperista palloon, jolloin pallo varautuu negatiivisesti.<\/p>\n<p>Tuodaan t\u00e4m\u00e4 negatiivinen ilmapallo nyt l\u00e4helle Van de Graaffia, kun virta on kytketty p\u00e4\u00e4lle. K\u00e4yt\u00e4n Narikan Van de Graaffia. Kun virta on p\u00e4\u00e4ll\u00e4 ja pallo on l\u00e4hell\u00e4&#8230;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34730 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e53a53d31787c1abd8516003b05cd95f.jpg\" alt=\"\" width=\"442\" height=\"303\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e53a53d31787c1abd8516003b05cd95f.jpg 1086w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e53a53d31787c1abd8516003b05cd95f-300x206.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e53a53d31787c1abd8516003b05cd95f-1024x702.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/e53a53d31787c1abd8516003b05cd95f-768x526.jpg 768w\" sizes=\"auto, (max-width: 442px) 100vw, 442px\" \/><\/p>\n<p style=\"text-align: center;\">Kun k\u00e4teni irrotin, pallo hylki sit\u00e4.<\/p>\n<p>Ilmapallo hylki palloa hienosti! Muista fysiikan peruss\u00e4\u00e4nt\u00f6: &#8220;Samantyyppiset s\u00e4hk\u00f6varaukset (\u2013 ja \u2013 tai + ja +) hylkiv\u00e4t toisiaan, ja erityyppiset s\u00e4hk\u00f6varaukset (+ ja \u2013) vet\u00e4v\u00e4t toisiaan puoleensa&#8221;. Koska negatiivinen ilmapallo hylki palloa, tied\u00e4mme, ett\u00e4 my\u00f6s t\u00e4ss\u00e4 Van de Graaffin pallossa on varastoitunut negatiivista s\u00e4hk\u00f6\u00e4!<\/p>\n<h3>[Sovellus] S\u00e4hk\u00f6 &#8220;karkaa&#8221;? S\u00e4hk\u00f6isen induktion ihme<\/h3>\n<p>T\u00e4ss\u00e4 tulee se hauska osuus: kytke Van de Graaffin virta pois p\u00e4\u00e4lt\u00e4 ja kosketa palloa k\u00e4dell\u00e4 kerran s\u00e4hk\u00f6n poistamiseksi (purkaminen). Nyt pallon pit\u00e4isi olla &#8220;neutraali&#8221; tila, ei positiivinen eik\u00e4 negatiivinen (tyhj\u00e4 s\u00e4hk\u00f6st\u00e4). Ent\u00e4 jos tuomme aiemmin k\u00e4ytetyn negatiivisen ilmapallon l\u00e4helle t\u00e4t\u00e4 &#8220;tyhj\u00e4\u00e4&#8221; palloa?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34743 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/86465468a0af21a89ba01485b42f868a.jpg\" alt=\"\" width=\"397\" height=\"340\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/86465468a0af21a89ba01485b42f868a.jpg 694w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/86465468a0af21a89ba01485b42f868a-300x257.jpg 300w\" sizes=\"auto, (max-width: 397px) 100vw, 397px\" \/><\/p>\n<p>Hui! Ilmapallo tarttui palloon kevyesti! Hassua, eik\u00f6? Vaikka pallon pit\u00e4isi olla tyhj\u00e4, miksi se vet\u00e4\u00e4 puoleensa negatiivista ilmapalloa (eli osoittaa positiivisia ominaisuuksia)? T\u00e4m\u00e4 on yksi staattisen s\u00e4hk\u00f6n mielenkiintoisimmista ilmi\u00f6ist\u00e4, jota kutsutaan &#8220;s\u00e4hk\u00f6iseksi induktioksi&#8221;.<\/p>\n<p>Pallo on valmistettu &#8220;metallista&#8221;. Metallissa on paljon vapaita negatiivisia s\u00e4hk\u00f6varauksia (vapaat elektronit), jotka voivat liikkua vapaasti. Kun negatiivinen ilmapallo tuodaan l\u00e4helle&#8230; Metallin vapaat elektronit reagoivat: &#8220;Vau! Miinus on tulossa!&#8221; ja pakenevat ilmapallosta kauimpana olevalle puolelle (t\u00e4ss\u00e4 kuvassa se puoli, johon k\u00e4teni koskettaa).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-34742 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/60f40895403030de9e01c42f4fe77200.jpg\" alt=\"\" width=\"431\" height=\"368\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/60f40895403030de9e01c42f4fe77200.jpg 698w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/60f40895403030de9e01c42f4fe77200-300x256.jpg 300w\" sizes=\"auto, (max-width: 431px) 100vw, 431px\" \/><\/p>\n<p style=\"text-align: center;\">Negatiivinen varaus siirtyi pallon vastakkaiselle puolelle (elektronit saattavat olla paenneet minun kehoani pitkin)<\/p>\n<p>T\u00e4m\u00e4n seurauksena ilmapalloa l\u00e4hell\u00e4 oleva puoli muuttuu &#8220;positiiviseksi&#8221;, koska elektronit ovat paenneet sielt\u00e4. Siksi se vet\u00e4\u00e4 puoleensa negatiivista ilmapalloa. T\u00e4m\u00e4 on sama periaate kuin se, ett\u00e4 hiukset, joita on hangattu viivaimella, tarttuvat sein\u00e4\u00e4n, vaikka sein\u00e4n ei pit\u00e4isi olla s\u00e4hk\u00f6isesti varautunut.<\/p>\n<h3>Staattinen s\u00e4hk\u00f6 on &#8220;miksi?&#8221; -kysymysten aarrearkku<\/h3>\n<p>Pieni asia, mutta ilmapallon liike muuttuu &#8220;hylkimisest\u00e4&#8221; &#8220;puoleensavet\u00e4miseen&#8221; riippuen siit\u00e4, onko virta kytketty P\u00c4\u00c4LLE vai POIS P\u00c4\u00c4LT\u00c4. T\u00e4llainen arkiel\u00e4m\u00e4n ilmi\u00f6iden miettiminen \u2013 miksi n\u00e4in tapahtui? \u2013 on staattisen s\u00e4hk\u00f6n kokeiden syvyys ja itse tieteen hauskuus.<\/p>\n<p>Kun tunnet &#8220;t\u00e4r\u00e4hdyksen&#8221; talvella, se on todiste siit\u00e4, ett\u00e4 elektronit (negatiivinen s\u00e4hk\u00f6) ovat hyp\u00e4nneet sinusta johonkin tai jotain on hyp\u00e4nnyt sinuun. Voi olla hauskaa ajatella: &#8220;Ahaa, nyt elektroni siirtyi&#8221;, kun se tapahtuu.<\/p>\n<h3>T\u00e4llaisia hauskoja kokeita voit tehd\u00e4 staattisen s\u00e4hk\u00f6n generaattorilla (Van de Graaff)!<\/h3>\n<p>Olen julkaissut my\u00f6s hauskoja Van de Graaffilla tehtyj\u00e4 kokeita. N\u00e4m\u00e4 sis\u00e4lt\u00e4v\u00e4t kokeita, joita tein TV-ohjelmassa muun muassa Suzu Hirosen, Ryohei Suzukin, Yasuko-sanin sek\u00e4 Chocolate Planetsin Osadan ja Matsuon kanssa. <a href=\"https:\/\/phys-edu.net\/wp\/?p=34632\">Katso lis\u00e4tietoja 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=\"257\" height=\"143\" \/><\/p>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" title=\"\u201c\u96fb\u6c17\u8cde\u72b6\uff01\u6cb8\u9a30\u30ef\u30fc\u30c9\uff11\uff10\u3067\u5e83\u702c\u3059\u305a\u3055\u3093\u304c\u4f53\u9a13\u3057\u305f\u9759\u96fb\u6c17\u5b9f\u9a13\u6388\u696d\u3010\u307e\u3068\u3081\u3011\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=34632&amp;embed=true#?secret=5FZ5KoqHpj#?secret=JlaHY6Eh81\" width=\"600\" height=\"209\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" sandbox=\"allow-scripts\" data-secret=\"JlaHY6Eh81\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p>\u203b Huomioithan, ett\u00e4 staattisen s\u00e4hk\u00f6n generaattorilla (Van de Graaff) teht\u00e4v\u00e4t kokeet on ehdottomasti teht\u00e4v\u00e4 asiantuntijan valvonnassa. Kokeile varoen. Jos sinulla on staattiseen s\u00e4hk\u00f6\u00f6n liittyvi\u00e4 pyynt\u00f6j\u00e4 (tiedetunteja, TV-konsultointia\/esiintymisi\u00e4 tms.), ota yhteytt\u00e4 <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4st\u00e4<\/a>.<\/p>\n<p style=\"text-align: center;\">\u3010Erikoisartikkeli\u3011<a href=\"https:\/\/phys-edu.net\/wp\/?p=34487\">Et voi lopettaa! 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_2511-1-300x225.jpg 300w, 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_2511-1-768x576.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>Tiedustelut ja pyynn\u00f6t<\/h3>\n<p>Tuo tieteen ihmeet ja hauskuus l\u00e4hemm\u00e4ksi! Olen koonnut selityksi\u00e4 hauskoista tiedekokeista, joita voit tehd\u00e4 kotona, sek\u00e4 vinkkej\u00e4 niiden tekemiseen. Etsi lis\u00e4\u00e4 tietoa! \u30fbScience Notebook -sis\u00e4lt\u00f6 on julkaistu kirjana. Lis\u00e4tietoja <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a> \u30fbTietoja yll\u00e4pit\u00e4j\u00e4 Ken Kuwakosta <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a> \u30fbMonenlaiset pyynn\u00f6t (kirjoittaminen, luennot, tiedetunnit, TV-konsultointi\/esiintyminen jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a> <span class=\"s2\">\u30fbArtikkelip\u00e4ivitykset <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>Kokeiluvideoita julkaistaan kanavalla <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Kagaku no Netacho Channel<\/a>!<\/p>\n<h3>\uff14\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=46937&amp;\">\u5149\u306e\u9b54\u6cd5CMY\u30a6\u30a9\u30fc\u30bf\u30fc\u30ad\u30e5\u30fc\u30d6<\/a>\uff1a\u5149\u306e\u9b54\u6cd5\u3092\u4f53\u9a13\u305b\u3088\uff01\u6c34\u3092\u6ce8\u3050\u3068\u65b0\u305f\u306a\u7acb\u65b9\u4f53\u304c\u51fa\u73fe\u3059\u308b\u9b54\u6cd5\u306e\u3088\u3046\u306a\u5b9f\u9a13\u3067\u3059\u3002<\/li>\r\n<\/ul>\r\n<img class=\"alignnone wp-image-47312 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c.jpg\" sizes=\"auto, (max-width: 267px) 100vw, 267px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c.jpg 1292w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-272x300.jpg 272w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-928x1024.jpg 928w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-768x848.jpg 768w\" alt=\"\" width=\"267\" height=\"294\" \/>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u30fb\u79d1\u5b66\u76e3\u4fee\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>4\u67089\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3 \uff09\u306e\u79d1\u5b66\u76e3\u4fee\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u591c7\u6642\u301c\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\r\n<\/ul>\r\n<h3><span style=\"font-size: medium;\"><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=61585\">\u30b5\u30af\u30bb\u30b915 \uff14\u6708\u53f7<\/a>\u306b\u3066\u3001\u91ce\u7403\u306e\u79d1\u5b66\u306b\u3064\u3044\u3066\u8a18\u4e8b\u3092\u57f7\u7b46\u3057\u307e\u3057\u305f\uff082026\/3\uff09<\/li>\r\n \t<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09\r\n<img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/>\r\n<\/strong><\/li>\r\n \t<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002\r\n<img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"font-size: medium;\"><b>\u8b1b\u5e2b\u30fb\u30b7\u30e7\u30fc\u30fb\u7814\u7a76\u7b49\u306e\u304a\u77e5\u3089\u305b<\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>3\/20\uff08\u91d1\uff09\u3000\u65e5\u672c\u7406\u79d1\u6559\u80b2\u5b66\u4f1a\u30aa\u30f3\u30e9\u30a4\u30f3\u5168\u56fd\u5927\u4f1a2026\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=60439\">\u6163\u6027\u306e\u6cd5\u5247\u306e\u6982\u5ff5\u5f62\u6210\u3092\u76ee\u6307\u3057\u305f\u63a2\u7a76\u7684\u306a\u5b66\u3073\u306e\u5b9f\u8df5\u300d<\/a>\u306b\u3064\u3044\u3066\u767a\u8868\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li>6\/14\uff08\u65e5\uff09\u3000\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n \t<li>7\/18\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n \t<li>10\/10\uff08\u571f\uff09\u3000\u79d8\u5bc6\u5175\u5668\u300c\u5e2f\u96fb\u30ac\u30f3\u300d\u304c\u70b8\u88c2\uff01\u30d3\u30ea\u30d3\u30ea\uff01\u30c9\u30ad\u30c9\u30ad\uff01\u9759\u96fb\u6c17\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\uff20\u5343\u8449\u5e02\u79d1\u5b66\u30d5\u30a7\u30b9\u30bf\uff08\u5348\u5f8c\u4e88\u5b9a\uff09<\/li>\r\n \t<li><span style=\"text-align: center;\">\u5404\u7a2eSNS\u3000<\/span><a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a><\/li>\r\n<\/ul>\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>\r\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 has-dates wp-block-latest-posts\"><li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62891&#038;lang=ko\" aria-label=\"\uba48\ucd98 \ub4ef\ud558\uc9c0\ub9cc \ub2e4\uac00\uc624\uace0 \uc788\ub2e4? &#8216;\ucf5c\ub9ac\uc804 \ucf54\uc2a4&#8217; \ud604\uc0c1\uc758 \uacf5\ud3ec\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62891&#038;lang=ko\">\uba48\ucd98 \ub4ef\ud558\uc9c0\ub9cc \ub2e4\uac00\uc624\uace0 \uc788\ub2e4? &#8216;\ucf5c\ub9ac\uc804 \ucf54\uc2a4&#8217; \ud604\uc0c1\uc758 \uacf5\ud3ec<\/a><time datetime=\"2026-04-30T04:31:27+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62889&#038;lang=es\" aria-label=\"\u00bfInm\u00f3vil o en rumbo de colisi\u00f3n? El peligro invisible de la velocidad relativa\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62889&#038;lang=es\">\u00bfInm\u00f3vil o en rumbo de colisi\u00f3n? El peligro invisible de la velocidad relativa<\/a><time datetime=\"2026-04-30T04:30:54+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62887&#038;lang=hi\" aria-label=\"\u0938\u094d\u0925\u093f\u0930 \u092a\u0930 \u091c\u093e\u0928\u0932\u0947\u0935\u093e: \u0915\u094b\u0932\u093f\u091c\u0928 \u0915\u094b\u0930\u094d\u0938 \u0915\u093e \u0916\u0924\u0930\u0928\u093e\u0915 \u0938\u091a\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62887&#038;lang=hi\">\u0938\u094d\u0925\u093f\u0930 \u092a\u0930 \u091c\u093e\u0928\u0932\u0947\u0935\u093e: \u0915\u094b\u0932\u093f\u091c\u0928 \u0915\u094b\u0930\u094d\u0938 \u0915\u093e \u0916\u0924\u0930\u0928\u093e\u0915 \u0938\u091a<\/a><time datetime=\"2026-04-30T04:30:07+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62885&#038;lang=zh\" aria-label=\"\u770b\u4f3c\u975c\u6b62\u537b\u5728\u903c\u8fd1\uff1f\u4ee4\u4eba\u6bdb\u9aa8\u609a\u7136\u7684\u300c\u78b0\u649e\u8def\u7dda\u300d\u73fe\u8c61\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62885&#038;lang=zh\">\u770b\u4f3c\u975c\u6b62\u537b\u5728\u903c\u8fd1\uff1f\u4ee4\u4eba\u6bdb\u9aa8\u609a\u7136\u7684\u300c\u78b0\u649e\u8def\u7dda\u300d\u73fe\u8c61<\/a><time datetime=\"2026-04-30T04:28:59+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62882&#038;lang=fi\" aria-label=\"Se n\u00e4ytt\u00e4\u00e4 seisovan, mutta l\u00e4hestyy \u2013 T\u00f6rm\u00e4yskurssin hyyt\u00e4v\u00e4 vaara\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62882&#038;lang=fi\">Se n\u00e4ytt\u00e4\u00e4 seisovan, mutta l\u00e4hestyy \u2013 T\u00f6rm\u00e4yskurssin hyyt\u00e4v\u00e4 vaara<\/a><time datetime=\"2026-04-30T04:25:30+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62880&#038;lang=en\" aria-label=\"Frozen in Sight, Racing to Impact: The Terror of the Collision Course\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/74ff8b011a242f6fb7ea0802cb36c952-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62880&#038;lang=en\">Frozen in Sight, Racing to Impact: The Terror of the Collision Course<\/a><time datetime=\"2026-04-30T04:24:38+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=39867\" aria-label=\"\u82b1\u3073\u3089\u306f\u672c\u5f53\u306b6\u679a\uff1f\u8eab\u8fd1\u306a\u30c1\u30e5\u30fc\u30ea\u30c3\u30d7\u3067\u63a2\u308b\u690d\u7269\u306e\u30eb\u30fc\u30eb\uff08\u690d\u7269\u56f3\u9451\uff09\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/04\/dad12b44e48bbe3ab6fd4da3be301101-150x150.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=39867\">\u82b1\u3073\u3089\u306f\u672c\u5f53\u306b6\u679a\uff1f\u8eab\u8fd1\u306a\u30c1\u30e5\u30fc\u30ea\u30c3\u30d7\u3067\u63a2\u308b\u690d\u7269\u306e\u30eb\u30fc\u30eb\uff08\u690d\u7269\u56f3\u9451\uff09<\/a><time datetime=\"2026-04-30T04:12:48+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=34400\" aria-label=\"\uff0b\u3068\u2212\u3067\u306a\u305c\u9006\uff1f\u30db\u30fc\u30eb\u52b9\u679c\u306e\u30e2\u30e4\u30e2\u30e4\u3092\u4e00\u6c17\u306b\u89e3\u6c7a\uff01\uff08\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\uff09\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/d0f315698bba7db67a7a11d57ad88e85-150x150.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=34400\">\uff0b\u3068\u2212\u3067\u306a\u305c\u9006\uff1f\u30db\u30fc\u30eb\u52b9\u679c\u306e\u30e2\u30e4\u30e2\u30e4\u3092\u4e00\u6c17\u306b\u89e3\u6c7a\uff01\uff08\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\uff09<\/a><time datetime=\"2026-04-30T04:00:25+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670830\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62870&#038;lang=fi\" aria-label=\"Paljasta n\u00e4kym\u00e4t\u00f6n voima! Tasapainon 3 ehtoa kokeellisesti \u2013 keski\u00f6ss\u00e4 suora vaikutusviiva.\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/0c363943316a3a32b1e6d1e43ff96e38-150x150.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=62870&#038;lang=fi\">Paljasta n\u00e4kym\u00e4t\u00f6n voima! Tasapainon 3 ehtoa kokeellisesti \u2013 keski\u00f6ss\u00e4 suora vaikutusviiva.<\/a><time datetime=\"2026-04-29T05:20:36+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670829\u65e5<\/time><\/li>\n<\/ul>&nbsp;","protected":false},"excerpt":{"rendered":"<p>Olen Ken Kuwako, tiedekouluttaja. Joka p\u00e4iv\u00e4 on koe. Talvella, kun kosket ovenkahvaan, tunnet sen tutun &#038;#8220 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":48190,"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":""},"categories":[1630],"tags":[],"class_list":["post-54977","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\/2020\/02\/c5dede3737f1cea6f947cf9cd724bbb3.jpg","jetpack-related-posts":[{"id":55046,"url":"https:\/\/phys-edu.net\/wp\/?p=55046&lang=fi","url_meta":{"origin":54977,"position":0},"title":"Tanssivat t\u00f6lkit!? Staattisen s\u00e4hk\u00f6n taika ja induktion salaisuus (Hauska Van de Graaff -kokeilu)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670827\u65e5","format":false,"excerpt":"T\u00e4ss\u00e4 on Keni Kuwako, tiedekouluttaja. 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