{"id":64619,"date":"2026-06-18T04:24:06","date_gmt":"2026-06-17T19:24:06","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=64619"},"modified":"2026-06-18T04:24:06","modified_gmt":"2026-06-17T19:24:06","slug":"miksi-jalat-puutuvat-seiza-asennossa-tieteen-selitys-jalkojen-risteys-10-sekuntia-menetelmalle","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=64619&lang=fi","title":{"rendered":"Miksi jalat puutuvat seiza-asennossa? Tieteen selitys &#8220;jalkojen risteys 10 sekuntia&#8221; -menetelm\u00e4lle"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Olen Ken Kuwako, tiedevalmentaja \u2013 el\u00e4m\u00e4 on yksi iso koe.<\/strong><\/span><\/p>\n<h3>Miksi jalat puutuvat seistess\u00e4 \u2013 ja miksi &#8220;ristiinasento 10 sekuntia&#8221; auttaa?<\/h3>\n<p>Kun istut pitk\u00e4\u00e4n japanilaisessa seiza-asennossa esimerkiksi hautajaisissa tai teseremonioissa, jalat alkavat pikku hiljaa pistell\u00e4. Monelle on tuttu se nolo hetki, kun yrit\u00e4t nousta pystyyn mutta jalat eiv\u00e4t tottelekaan.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-64608\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.21.jpeg\" alt=\"\" width=\"503\" height=\"395\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.21.jpeg 1020w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.21-300x236.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.21-768x604.jpeg 768w\" sizes=\"auto, (max-width: 503px) 100vw, 503px\" \/><\/p>\n<p>Mutta mit\u00e4 tuossa pistely-tuntemuksessa oikein tapahtuu? Kyseess\u00e4 ei ole sattuma \u2013 taustalla on hermojen ja verenkierron tarkka yhteistoiminta. T\u00e4ss\u00e4 artikkelissa selit\u00e4mme ilmi\u00f6n tieteellisesti auki. Lis\u00e4ksi pureudumme siihen mystiseen kikkaan, jonka n\u00e4et alla olevalla videolla: asettamalla toisen pohkeen toisen jalan p\u00e4\u00e4lle ja painamalla 10 sekuntia puutuminen h\u00e4vi\u00e4\u00e4. Mutta miksi?<\/p>\n<p><iframe loading=\"lazy\" title=\"\uff11\uff10\u79d2\u3067\u6b63\u5ea7\u3067\u3057\u3073\u308c\u305f\u8db3\u3092\u6cbb\u3059\u65b9\u6cd5\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/wH6yd8pPPSo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h3>Miksi seiza-asento aiheuttaa puutumisen?<\/h3>\n<p>Seiza-asennossa polvitaipeen ja nilkan verisuonet puristuvat kokoon, jolloin veri ei p\u00e4\u00e4se kunnolla kiert\u00e4m\u00e4\u00e4n jalkoihin. T\u00e4m\u00e4 johtaa hapen puutteeseen hermokudoksessa.<br \/>\nKun happi alkaa loppua, hermot l\u00e4hett\u00e4v\u00e4t aivoille h\u00e4lytyssignaalin: &#8220;Verenkierto on katkennut!&#8221; Jos puristus jatkuu tarpeeksi kauan, hermot menev\u00e4t v\u00e4liaikaisesti &#8220;pois p\u00e4\u00e4lt\u00e4&#8221; \u2013 ja jalka tuntuu t\u00e4ysin tuntemattomalta puupalikoilta.<br \/>\nSe kuuluisa pistely ja kirvelytys ei kuitenkaan tule puristuksen aikana \u2013 se iskee silloin, kun asento vapautuu ja veri tulvahtaa takaisin. Veri virtaa hermoihin yht\u00e4kkisesti, ja se laukaisee sen ter\u00e4v\u00e4n, kikattamaan laittavan kivun. Paradoksaalisesti siis pahimmillaan puutuminen tuntuu juuri silloin, kun se on paranemassa.<\/p>\n<h3>Miksi ristiinasento auttaa 10 sekunnissa?<\/h3>\n<p>On olemassa temppu: kun jalat puutuvat, aseta toinen pohje toisen jalan p\u00e4\u00e4lle ristiin ja pid\u00e4 asentoa noin 10 sekuntia. Kuulemma toimii! En ole itse kokeillut, mutta tieteellisesti ajatellen se kuulostaa varsin uskottavalta. Syit\u00e4 on kolme:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-64607 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.14.jpeg\" alt=\"\" width=\"519\" height=\"419\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.14.jpeg 1274w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.14-300x243.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.14-1024x828.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.14-768x621.jpeg 768w\" sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/><br \/>\n\u2460 Puristuspiste siirtyy<br \/>\nKun asento muuttuu, paino siirtyy pois polvitaipeesta. Puristus laukeaa hetkeksi, ja veri p\u00e4\u00e4see taas liikkumaan.<br \/>\n\u2461 Pohje toimii pumppuna<br \/>\nKun pohkeet painautuvat toisiaan vasten, lihaksiin kohdistuu sopiva paine. T\u00e4m\u00e4 aktivoi ns. lihaspomp puvaikutuksen, joka puskee laskimoverta takaisin syd\u00e4nt\u00e4 kohti. Pohkeet tunnetaan muutenkin kehon &#8220;toisena syd\u00e4men\u00e4&#8221; \u2013 ja t\u00e4ss\u00e4 tempussa tuo pumppu otetaan k\u00e4ytt\u00f6\u00f6n tarkoituksella.<\/p>\n<blockquote><p>Pohkeen lihakset ovat keskeisess\u00e4 roolissa laskimoveren palauttamisessa syd\u00e4meen. T\u00e4t\u00e4 kutsutaan lihaspomp pu vaikutukseksi: pohkeen lihakset supistuvat ja rentoutuvat vuorotellen, ty\u00f6nt\u00e4en verta yl\u00f6sp\u00e4in ja est\u00e4en sen takaisinvirtauksen. T\u00e4m\u00e4 muistuttaa syd\u00e4men pumppumekanismia \u2013 siksi pohkeet ovatkin saaneet lempinimen &#8220;toinen syd\u00e4n&#8221;. Erityisesti k\u00e4velless\u00e4 pohkeen lihakset liikkuvat voimakkaasti ja edist\u00e4v\u00e4t koko verenkiertoj\u00e4rjestelm\u00e4n toimintaa \u2013 t\u00e4st\u00e4 syyst\u00e4 sis\u00e4tautil\u00e4\u00e4k\u00e4rit suosittelevat k\u00e4vely\u00e4 niin innokkaasti.<br \/>\nL\u00e4hde: Ashiho Clinic \u2013 Miksi jalat ovat &#8220;toinen syd\u00e4n&#8221;?<\/p>\n<p>https:\/\/www.ashiho.clinic\/article\/second-heart<\/p><\/blockquote>\n<p>\u2462 Veri palaa ja hermot elpyv\u00e4t<br \/>\nKun happipitoinen veri virtaa takaisin, hermot saavat tarvitsemansa polttoaineen ja ep\u00e4normaali s\u00e4hk\u00f6inen signaali palautuu normaaliksi. Puutuminen h\u00e4vi\u00e4\u00e4.<br \/>\nT\u00e4m\u00e4 on sellainen pieni el\u00e4m\u00e4nhakkerointi, jonka aion ehdottomasti testata seuraavassa tilaisuudessa!<\/p>\n<h3>Ent\u00e4 miten puutumisen voi est\u00e4\u00e4 kokonaan?<\/h3>\n<p>Puutumisen p\u00e4\u00e4syyllinen on liikkumattomuus. N\u00e4ill\u00e4 vinkeill\u00e4 verenkierto pysyy paremmin k\u00e4ynniss\u00e4:<br \/>\nVaihda painopistett\u00e4 s\u00e4\u00e4nn\u00f6llisesti<br \/>\nJo se, ett\u00e4 siirr\u00e4t kehon painoa hieman puolelta toiselle tai heiluttelet varpaitasi noin viiden minuutin v\u00e4lein, pit\u00e4\u00e4 verenkierron k\u00e4ynniss\u00e4.<br \/>\nLaita tyyny nilkan alle<br \/>\nKun nilkkakulma on loivempi, verisuoniin kohdistuva paine pienenee merkitt\u00e4v\u00e4sti.<br \/>\nK\u00e4yt\u00e4 tuolia<br \/>\nJos puutuminen on sinulle yleinen vaiva, \u00e4l\u00e4 h\u00e4peile pyyt\u00e4\u00e4 tuolia \u2013 hautajaisissa, seremonioissa tai kokouksissa. Krooninen paine \u00e4\u00e4reishermoissa ei tee hyv\u00e4\u00e4, ja pakkoistuminen seiza-asennossa voi pitk\u00e4ll\u00e4 aikav\u00e4lill\u00e4 olla haitallista.<\/p>\n<h3>Arjen ilmi\u00f6ist\u00e4 syv\u00e4\u00e4n tieteeseen<\/h3>\n<p>Se tuttu jalkojen puutuminen on paljon monimutkaisempi ilmi\u00f6 kuin uskommekaan: taustalla on hermoston hapentunnistus, laskimoveren paluumekanismi ja hermoihin kohdistuvat kemialliset reaktiot. Kun pys\u00e4hdyt kysym\u00e4\u00e4n &#8220;miksi?&#8221; arjen pienille ihmeille, keho alkaa n\u00e4ytt\u00e4ytym\u00e4\u00e4n aivan uudessa, h\u00e4mm\u00e4stytt\u00e4v\u00e4ss\u00e4 valossa.<\/p>\n<h3>Yhteystiedot ja tilaukset<\/h3>\n<p>Tiedett\u00e4 hauskasti ja ymm\u00e4rrett\u00e4v\u00e4sti! Sivustollani on paljon kotona teht\u00e4vi\u00e4 tiedekokeiden ohjeita ja selityksi\u00e4 arjen ilmi\u00f6ille. Tutustu ja etsi vapaasti!<br \/>\n\u30fbArtikkeleistani on koottu kirja \u2013 lis\u00e4tietoja <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a><\/p>\n<p>\u30fbTietoa minusta, Ken Kuwakosta: <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a><\/p>\n<p>\u30fbTilaukset (kirjoitukset, luennot, tiedekokeet, TV-yhteisty\u00f6 jne.): <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><\/p>\n<p>\u30fbArtikkelip\u00e4ivitykset: <a href=\"https:\/\/x.com\/kuwako\">seuraa X:ss\u00e4!<\/a><\/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\">Tiedekanava \u2013 katso kokeVideot!<\/a><\/p>\n<h3>\uff16\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=64043\">\u30ec\u30e2\u30f3\u3084\u30aa\u30ec\u30f3\u30b8\u3067\u98a8\u8239\u3092\u5272\u308d\u3046\uff01\u30a4\u30f3\u30d1\u30af\u30c8\u304c\u629c\u7fa4\u306e\u30ea\u30e2\u30cd\u30f3\u98a8\u8239\u306e\u5b9f\u9a13<\/a><\/p>\r\n<p style=\"text-align: center;\"><img class=\"alignnone  wp-image-64045\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24.jpeg\" alt=\"\" width=\"406\" height=\"349\" \/><\/p>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>\uff16\u6708\uff13\u65e5\uff08\u6c34\uff0920:30\u301c\u3000\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=63950\"><wbr \/>\u30d0\u30ab\u30ea\u30ba\u30e0\u306e\u3061\u3087\u3063\u3068\u30d0\u30ab\u308a\u30cf\u30ab\u3063\u3066\u307f\u305f\uff01<\/a>\u300d\uff08\u30c6\u30ec\u30d3\u6771\u4eac\uff09\u3092\u79d1\u5b66\u76e3\u4fee\u30fb\u51fa\u6f14\u3057\u307e\u3059\u3002\u30c6\u30fc\u30de\u306f\u300c<wbr \/>\u305d\u3070\u306e\u51fa\u524d\u306f\u4f55\u4eba\u524d\u307e\u3067\u904b\u3079\u308b\u306e\u304b\u3001\u9650\u754c\u3092\u6e2c\u3063\u3066\u307f\u305f\u300d\u3067\u3059\u3002\u3000<\/li>\r\n<li>\uff16\u6708\uff14\u65e5(\u6728)\u30007:00\u301c\u3000\u300c<a href=\"https:\/\/www.ntv.co.jp\/toppa\/\">THE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb<\/a>\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306b\u3064\u3044\u3066\u79d1\u5b66\u76e3\u4fee\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\uff08\u65e5\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=63530\">\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d<\/a>\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=63067\">\u516c\u958b\u7814\u7a76\u4f1a\u300c\u8131\u4f5c\u696d\u5316\uff01\u30c7\u30b8\u30bf\u30eb\u5316\u3068\u6bb5\u968e\u7684\u6307\u5c0e\u3067\u5b9f\u73fe\u3059\u308b \u30aa\u30fc\u30e0\u306e\u6cd5\u5247\u306e\u63a2\u7a76\u300d<\/a><\/li>\r\n<li>\uff16\u670828\u65e5\uff08\u65e5\uff09\u3000<a href=\"https:\/\/www.davincimasters.jp\">\u30c0\u30d3\u30f3\u30c1\u30de\u30b9\u30bf\u30fc\u30ba\uff20\u662d\u548c\u5973\u5b50<\/a><\/li>\r\n<li>7\u670818\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09<br \/><img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><br \/><\/strong><\/li>\r\n<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002<br \/><img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\uff08\u65e5\u672c\u8a9e\uff09<\/p>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a>\uff08\u82f1\u8a9e\uff09<\/p>\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a 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href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\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<p>&nbsp;<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Olen Ken Kuwako, tiedevalmentaja \u2013 el\u00e4m\u00e4 on yksi iso koe. Miksi jalat puutuvat seistess\u00e4 \u2013 ja miksi &#8220;ris [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":64608,"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-64619","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-18-4.16.21.jpeg","jetpack-related-posts":[{"id":62046,"url":"https:\/\/phys-edu.net\/wp\/?p=62046&lang=fi","url_meta":{"origin":64619,"position":0},"title":"Valon upea duetto ja suuri kuoro! Kimaltelevan kiilteen v\u00e4rien salaisuudet paljastuvat","author":"\u6851\u5b50 \u7814","date":"2026\u5e744\u67081\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":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%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%88-2025-09-23-5.15.38.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%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%88-2025-09-23-5.15.38.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%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%88-2025-09-23-5.15.38.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%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%88-2025-09-23-5.15.38.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":59494,"url":"https:\/\/phys-edu.net\/wp\/?p=59494&lang=fi","url_meta":{"origin":64619,"position":1},"title":"Tieteen selitys liman hytin\u00e4lle! Miksi slime on niin pomppivaa \u2013 ja mik\u00e4 on \u201cs\u00e4hk\u00f6slime\u201d?","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670827\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":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-27-4.30.11.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-27-4.30.11.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-27-4.30.11.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-01-27-4.30.11.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":62199,"url":"https:\/\/phys-edu.net\/wp\/?p=62199&lang=fi","url_meta":{"origin":64619,"position":2},"title":"Taikatemppu siistiin kakkuun! \u201cPakastetut kynttil\u00e4t\u201d paljastavat yll\u00e4tt\u00e4v\u00e4n tieteen (parafiinin sulamis- ja kiehumispiste)","author":"\u6851\u5b50 \u7814","date":"2026\u5e744\u67088\u65e5","format":false,"excerpt":"Tervehdys! Olen Ken Kuwako, tiedevalmentajasi. Min\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\/04\/%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%88-2026-04-08-4.26.04.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/04\/%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%88-2026-04-08-4.26.04.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/04\/%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%88-2026-04-08-4.26.04.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/04\/%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%88-2026-04-08-4.26.04.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":56059,"url":"https:\/\/phys-edu.net\/wp\/?p=56059&lang=fi","url_meta":{"origin":64619,"position":3},"title":"Miksi kissat selvi\u00e4v\u00e4t korkeista pudotuksista? Hidastus paljastaa niiden \u201csuperlaskeutumisen\u201d fysiikan!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u670818\u65e5","format":false,"excerpt":"Olen tiedevalmentaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on\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\/04\/9c8f28bb07a1e2554651ba7cdcf7041c.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/9c8f28bb07a1e2554651ba7cdcf7041c.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/9c8f28bb07a1e2554651ba7cdcf7041c.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":52143,"url":"https:\/\/phys-edu.net\/wp\/?p=52143&lang=fi","url_meta":{"origin":64619,"position":4},"title":"Kuinka nopea reaktioaikasi on? Testaa se viivottimella! Koe 1 (n\u00e4k\u00f6aisti \u2192 aivot \u2192 selk\u00e4ydin \u2192 k\u00e4den liike)","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670814\u65e5","format":false,"excerpt":"Olen tiedeohjaaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on ko\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\/bd3aef3d1c22c2116e8a0b9ac4e156ed.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/bd3aef3d1c22c2116e8a0b9ac4e156ed.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/bd3aef3d1c22c2116e8a0b9ac4e156ed.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":55569,"url":"https:\/\/phys-edu.net\/wp\/?p=55569&lang=fi","url_meta":{"origin":64619,"position":5},"title":"Miksi taivas on sininen ja auringonlasku punainen? Paljasta salaisuus saippuakuplilla ja muovipullolla!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u67088\u65e5","format":false,"excerpt":"Terveisi\u00e4! Olen Kuwako Ken, tiedevalmentaja. Jokai\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2016-01-27 23.51.30","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/01\/6690af2d580198e1c976d350af5a151a.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/64619","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=64619"}],"version-history":[{"count":1,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/64619\/revisions"}],"predecessor-version":[{"id":64620,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/64619\/revisions\/64620"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/64608"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=64619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=64619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=64619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}