{"id":66719,"date":"2026-08-21T04:51:02","date_gmt":"2026-08-20T19:51:02","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=66719"},"modified":"2026-08-21T04:51:02","modified_gmt":"2026-08-20T19:51:02","slug":"onko-portaita-alas-kulkeva-jousi-elossa-toukan-tavoin-liikkuvan-lelun-fysiikan-salaisuus","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=66719&lang=fi","title":{"rendered":"Onko portaita alas kulkeva jousi elossa? Toukan tavoin liikkuvan lelun fysiikan salaisuus"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Olen Science Trainer Ken Kuwako. Joka p\u00e4iv\u00e4 on kokeilup\u00e4iv\u00e4.<\/strong><\/span><\/p>\n<p>Kun lapsesi p\u00e4\u00e4st\u00e4\u00e4 pitk\u00e4n muovisen jousen eli slinkyn varovasti putoamaan portaiden yl\u00e4p\u00e4\u00e4st\u00e4, tapahtuu jotain h\u00e4mm\u00e4stytt\u00e4v\u00e4\u00e4. Jousi alkaa laskeutua portaita yksi askel kerrallaan, aivan kuin sill\u00e4 olisi oma tahto. Liike on niin kiehtovaa katsottavaa, ett\u00e4 p\u00e4\u00e4tin itsekin tarkkailla sit\u00e4 hieman tarkemmin.<\/p>\n<p>Ja t\u00e4ytyy sanoa, ett\u00e4 liike on todella n\u00e4ytt\u00e4v\u00e4\u00e4. Katso video ja katso itse!<\/p>\n<p><iframe loading=\"lazy\" title=\"\u751f\u304d\u7269\u306e\u3088\u3046\u306b\u52d5\u304f\u300c\u30d0\u30cd\u300d\u304c\u9762\u767d\u3044!!\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/QWSObo5zXOs?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>Eik\u00f6 se n\u00e4yt\u00e4kin aivan silt\u00e4 kuin k\u00e4\u00e4rme tai toukka ry\u00f6misi portaita alas askel askeleelta? Ensin n\u00e4ytt\u00e4\u00e4 silt\u00e4, ett\u00e4 jousi putoaa yhden askelman. Sitten sen viimeinen osa venyy kiemurrellen seuraavalle askelmalle, ja muu osa seuraa per\u00e4ss\u00e4 ik\u00e4\u00e4n kuin sit\u00e4 vedett\u00e4isiin eteenp\u00e4in&#8230; T\u00e4m\u00e4n kummallisen liikkeen taustalla on itse asiassa <b>kokonainen joukko fysiikan lakeja<\/b>.<\/p>\n<h3>Toukkamaisen liikkeen salaisuus on painopisteen siirtymisess\u00e4<\/h3>\n<p>Kun katsot jousen liikett\u00e4 tarkasti, huomaat, ettei koko jousi putoa alasp\u00e4in kerralla. Ensin <b>jousen takaosa eli ylempi osa painuu kokoon ja vet\u00e4ytyy eteenp\u00e4in<\/b>. Sen j\u00e4lkeen <b>koko jousi putoaa seuraavalle askelmalle<\/b>. Sama liikesarja toistuu yh\u00e4 uudelleen.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-66707 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-21-4.35.15.jpeg\" alt=\"\" width=\"298\" height=\"349\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-21-4.35.15.jpeg 522w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-21-4.35.15-256x300.jpeg 256w\" sizes=\"auto, (max-width: 298px) 100vw, 298px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-66708 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-21-4.35.25.jpeg\" alt=\"\" width=\"296\" height=\"281\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-21-4.35.25.jpeg 646w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-21-4.35.25-300x284.jpeg 300w\" sizes=\"auto, (max-width: 296px) 100vw, 296px\" \/><\/p>\n<p>T\u00e4ss\u00e4 on jotain samaa kuin luonnon el\u00e4inten liikkumisessa. Esimerkiksi toukat ja mittarimadot liikkuvat supistamalla vartalonsa takaosaa, ojentamalla etuosaa ja vet\u00e4m\u00e4ll\u00e4 sitten takaosan eteen. My\u00f6s jousessa osa kierukasta painuu kokoon ja siirt\u00e4\u00e4 painopistett\u00e4 eteenp\u00e4in eli alasp\u00e4in. Sen seurauksena muu osa jousesta ik\u00e4\u00e4n kuin vedet\u00e4\u00e4n per\u00e4ss\u00e4.<\/p>\n<p>Onkin kiehtovaa ajatella, ett\u00e4 el\u00e4inten k\u00e4velyn ja pelk\u00e4n muovisen kierukan liikkeen taustalla voi olla n\u00e4in samanlaisia fysikaalisia mekanismeja.<\/p>\n<h3>Seurataanpa energian muuttumista<\/h3>\n<p>Kun tarkastelemme jousen liikett\u00e4 fysiikan n\u00e4k\u00f6kulmasta, siin\u00e4 tapahtuu seuraavanlaisia energian muunnoksia.<\/p>\n<p>Aluksi portaiden yl\u00e4osassa olevalla jousella on <b>painovoiman aiheuttamaa potentiaalienergiaa<\/b>. Mit\u00e4 korkeammalla jokin kappale on, sit\u00e4 enemm\u00e4n sill\u00e4 on potentiaalienergiaa.<\/p>\n<p>Kun jousi alkaa pudota, osa sen kierukasta painuu kokoon ja osa venyy. T\u00e4ll\u00f6in osa potentiaalienergiasta muuttuu <b>jousivoimaan liittyv\u00e4ksi potentiaalienergiaksi<\/b> eli elastiseksi energiaksi. Sama periaate toimii esimerkiksi venytetyss\u00e4 kuminauhassa tai jousessa: kun sit\u00e4 venytet\u00e4\u00e4n tai puristetaan, siihen varastoituu energiaa ja syntyy voima, joka pyrkii palauttamaan sen alkuper\u00e4iseen muotoonsa.<\/p>\n<p>Kun kokoon painunut jousi alkaa palautua alkuper\u00e4iseen muotoonsa, varastoitunut elastinen energia vapautuu nopeasti ja muuttuu <b>liike-energiaksi<\/b>. T\u00e4m\u00e4 saa yhden osan jousesta ponnahtamaan vauhdikkaasti seuraavalle askelmalle.<\/p>\n<p>Toisin sanoen jousi k\u00e4y portaita alas kulkiessaan jatkuvasti l\u00e4pi t\u00e4llaista energian muunnosketjua:<\/p>\n<p>Painovoiman potentiaalienergia \u2192 elastinen potentiaalienergia \u2192 liike-energia \u2192 (seuraavalla askelmalla taas) painovoiman potentiaalienergia&#8230;<\/p>\n<p>Energia siirtyy siis ik\u00e4\u00e4n kuin viestikapulana muodosta toiseen. Koska sama kierto toistuu jokaisella askelmalla, jousen liike n\u00e4ytt\u00e4\u00e4 niin el\u00e4v\u00e4lt\u00e4 ja muistuttaa el\u00e4imen askel askeleelta tapahtuvaa etenemist\u00e4.<\/p>\n<h3>Slinkyn fysiikka her\u00e4tti kiinnostusta jopa avaruudessa<\/h3>\n<p>Pieni sivuhuomio: t\u00e4m\u00e4 slinky-lelu on her\u00e4tt\u00e4nyt kiinnostusta my\u00f6s fysiikan maailmassa. On olemassa kuuluisa koe, jossa slinky\u00e4 pidet\u00e4\u00e4n pystysuorassa, sen alaosaa tuetaan k\u00e4dell\u00e4 ja yl\u00e4p\u00e4\u00e4st\u00e4\u00e4n se p\u00e4\u00e4stet\u00e4\u00e4n vapaaksi.<\/p>\n<p>Ensimm\u00e4isen\u00e4 voisi ajatella, ett\u00e4 koko jousi alkaa pudota samanaikaisesti heti, kun k\u00e4si irtoaa siit\u00e4. Todellisuudessa <b>alaosa pysyy hetken t\u00e4ysin paikallaan<\/b> eik\u00e4 l\u00e4hde putoamaan ennen kuin yl\u00e4osa on painunut kokoon ja saavuttanut sen.<\/p>\n<p>Ilmi\u00f6 johtuu siit\u00e4, ett\u00e4 jousen yl\u00e4osan kokoonpuristumisesta syntyv\u00e4 voima ei viel\u00e4 v\u00e4lity riitt\u00e4v\u00e4n nopeasti jousen alaosaan. Kyseess\u00e4 on eritt\u00e4in havainnollinen koe, joka n\u00e4ytt\u00e4\u00e4 konkreettisesti, ett\u00e4 my\u00f6s voiman v\u00e4littymisell\u00e4 on rajallinen nopeus.<\/p>\n<p>My\u00f6s t\u00e4m\u00e4nkertaisen portaissa tapahtuvan liikkeen voi n\u00e4hd\u00e4 saman ilmi\u00f6n sukulaisena. Kun ajattelemme, ett\u00e4 voiman v\u00e4littymiseen liittyy pieni viive, slinkyn kummallinen liike alkaa n\u00e4ytt\u00e4\u00e4 aivan uudella tavalla kiinnostavalta.<\/p>\n<h3>Yhteydenotot ja yhteisty\u00f6pyynn\u00f6t<\/h3>\n<p>Tehd\u00e4\u00e4n tieteen ihmeist\u00e4 ja hauskuudesta osa jokap\u00e4iv\u00e4ist\u00e4 el\u00e4m\u00e4\u00e4! Sivustolta l\u00f6yd\u00e4t helposti ymm\u00e4rrett\u00e4v\u00e4sti selitettyj\u00e4 hauskoja tiedekokeita, joita voi tehd\u00e4 my\u00f6s kotona, sek\u00e4 hy\u00f6dyllisi\u00e4 vinkkej\u00e4 niiden toteuttamiseen. Tutustu sivustoon ja kokeile erilaisia hakuja!<\/p>\n<p>\u30fbScience Note Book -sivuston sis\u00e4lt\u00f6 on nyt julkaistu my\u00f6s kirjana. Lis\u00e4tietoja l\u00f6yd\u00e4t <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbTietoa sivuston yll\u00e4pit\u00e4j\u00e4st\u00e4 Ken Kuwakosta l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbErilaisia yhteisty\u00f6- ja toimeksiantopyynt\u00f6j\u00e4 varten (kirjoittaminen, luennot, tiedekerhot, TV-ohjelmien tieteellinen valvonta, esiintyminen jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">ota yhteytt\u00e4 t\u00e4\u00e4ll\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbSaat tiedon uusista artikkeleista <a href=\"https:\/\/x.com\/kuwako\">X-palvelussa<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Note -kanavalla<\/a> julkaistaan tiedekokeisiin liittyvi\u00e4 videoita!<\/p>\n<h3><span style=\"color: #ff0000;\">NEW\u3000\u5206\u89e3\u554f\u984c\u96c6\u3000\u7406\u79d1<\/span><\/h3>\r\n<ul>\r\n \t<li>\uff17\u6708\uff12\uff11\u65e5\u767a\u58f2\uff01\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002\r\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone  wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a><\/li>\r\n<\/ul>\r\n<h3>\uff17\u30fb\uff18\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\">\u590f\u3067\u30d7\u30b7\u30e5\u30c3\u3068\u723d\u3084\u304b\u5b9f\u9a13\uff01<\/p>\r\n<img class=\"alignnone  wp-image-64964 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-30-4.31.58.jpeg\" alt=\"\" width=\"250\" height=\"310\" \/>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=206\">\u5c0f\u578b\u3067\u6301\u3061\u5e30\u308c\u308b\u3088\uff01\u30da\u30c3\u30c8\u30dc\u30c8\u30eb\u30ed\u30b1\u30c3\u30c8\u3092\u4f5c\u308d\u3046\uff01<\/a><\/p>\r\n\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>\uff17\u6708\uff13\uff10\u65e5\uff08\u6c34\uff09\u79d1\u5b66\u76e3\u4fee\u300c<a href=\"https:\/\/www.fujitv.co.jp\/onesongfes\/\">TIF presents ONE SONG FES<\/a>\u300d\uff08\u30d5\u30b8\u30c6\u30ec\u30d3\uff09\u00a026:15~27:15<\/li>\r\n \t<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=64825\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n \t<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09\r\n<img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><\/strong><\/li>\r\n \t<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002\r\n<img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\">\u3010\u65e5\u672c\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\u3000\u3010\u82f1\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a><\/p>\r\n\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Olen Science Trainer Ken Kuwako. Joka p\u00e4iv\u00e4 on kokeilup\u00e4iv\u00e4. Kun lapsesi p\u00e4\u00e4st\u00e4\u00e4 pitk\u00e4n muovisen jousen eli sl [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":38536,"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-66719","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack-related-posts":[{"id":57824,"url":"https:\/\/phys-edu.net\/wp\/?p=57824&lang=fi","url_meta":{"origin":66719,"position":0},"title":"Kun j\u00e4\u00e4kaapista tulee laboratorio: Jousilla ja magneeteilla piirtyv\u00e4 seisovien aaltojen kiehtova maailma","author":"\u6851\u5b50 \u7814","date":"2025\u5e7412\u670825\u65e5","format":false,"excerpt":"Olen fysiikan valmentaja Ken Kuwako. Jokainen p\u00e4iv\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/01\/f2a14a2cdd0b08e9b1d2681f12efa429.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":61612,"url":"https:\/\/phys-edu.net\/wp\/?p=61612&lang=fi","url_meta":{"origin":66719,"position":1},"title":"Voiko suihku ja leikkivesipy\u00f6r\u00e4 opettaa fysiikkaa? Hauska johdanto energiaan pingispallotykin avulla","author":"\u6851\u5b50 \u7814","date":"2026\u5e743\u670818\u65e5","format":false,"excerpt":"\u3054\u63d0\u793a\u3044\u305f\u3060\u3044\u305f\u7406\u79d1\u306e\u30d6\u30ed\u30b0\u8a18\u4e8b\u3092\u3001\u30d5\u30a3\u30f3\u30e9\u30f3\u30c9\u8a9e\u306b\u7ffb\u8a33\u3044\u305f\u3057\u307e\u3057\u305f\u3002\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u3068\u3063\u3066\u81ea\u7136\u3067\u3001\u79d1\u5b66\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/3038e7e4e115dbdc39235043604e2048.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/3038e7e4e115dbdc39235043604e2048.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/3038e7e4e115dbdc39235043604e2048.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/04\/3038e7e4e115dbdc39235043604e2048.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":54611,"url":"https:\/\/phys-edu.net\/wp\/?p=54611&lang=fi","url_meta":{"origin":66719,"position":2},"title":"\u201cMik\u00e4 on pitkitt\u00e4isaalto?\u201d Selitys yhdell\u00e4 iskulla! Jousi paljastaa aaltojen perusteet ja maanj\u00e4ristysh\u00e4lytysten salaisuudet","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670819\u65e5","format":false,"excerpt":"Olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 on koe\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\/2014\/04\/4b636635d8684417e12ce31de061741f.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/04\/4b636635d8684417e12ce31de061741f.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/04\/4b636635d8684417e12ce31de061741f.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":62067,"url":"https:\/\/phys-edu.net\/wp\/?p=62067&lang=fi","url_meta":{"origin":66719,"position":3},"title":"Varjot paljastavat fysiikan salaisuudet! Tasaisen ympyr\u00e4liikkeen ja yksinkertaisen harmonisen liikkeen yll\u00e4tt\u00e4v\u00e4 yhteys","author":"\u6851\u5b50 \u7814","date":"2026\u5e744\u67082\u65e5","format":false,"excerpt":"Ken Kuwako, tiedevalmentajasi t\u00e4ss\u00e4. Jokainen p\u00e4iv\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/ac6e22482b73255cab4a394316c38ad5.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/ac6e22482b73255cab4a394316c38ad5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/ac6e22482b73255cab4a394316c38ad5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/ac6e22482b73255cab4a394316c38ad5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":58081,"url":"https:\/\/phys-edu.net\/wp\/?p=58081&lang=fi","url_meta":{"origin":66719,"position":4},"title":"Meiji-kauden malleista huippuluokan sovelluksiin! Aaltojen todellinen luonne selvi\u00e4\u00e4 mehil\u00e4isten tanssin avulla (Poikittaisaalto, pitkitt\u00e4isaalto, superpositio)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7412\u670831\u65e5","format":false,"excerpt":"Olen Ken Kuwako, tiedevalmentajasi. Jokainen p\u00e4iv\u00e4\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\/08\/%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%88-2025-12-29-4.53.32.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/08\/%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%88-2025-12-29-4.53.32.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/08\/%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%88-2025-12-29-4.53.32.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/08\/%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%88-2025-12-29-4.53.32.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/08\/%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%88-2025-12-29-4.53.32.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/08\/%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%88-2025-12-29-4.53.32.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":54293,"url":"https:\/\/phys-edu.net\/wp\/?p=54293&lang=fi","url_meta":{"origin":66719,"position":5},"title":"Pieni universumi petrimaljassa: Koe kahvisokerin avulla diffuusion taika vain 10 minuutissa!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670813\u65e5","format":false,"excerpt":"Tervehdys! Olen tiedevalmentaja Ken Kuwako. Joka p\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-10-13-5.10.26.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-10-13-5.10.26.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-10-13-5.10.26.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-10-13-5.10.26.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/12\/22cb90ad036e924f697cf45ca21f614c.jpg","_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/66719","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=66719"}],"version-history":[{"count":0,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/66719\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/38536"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=66719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=66719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}