{"id":63358,"date":"2026-05-13T04:20:26","date_gmt":"2026-05-12T19:20:26","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=63358"},"modified":"2026-05-13T04:20:26","modified_gmt":"2026-05-12T19:20:26","slug":"miksi-valo-taipuu-aaltojen-salaisuus-jonka-nero-loysi-350-vuotta-sitten-huygensin-periaate","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=63358&lang=fi","title":{"rendered":"Miksi valo taipuu? Aaltojen salaisuus, jonka nero l\u00f6ysi 350 vuotta sitten (Huygensin periaate)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>T\u00e4\u00e4ll\u00e4 Science Trainer Kuwako Ken. Joka p\u00e4iv\u00e4 on uusi koe.<\/strong><\/span><\/p>\n<p>Oletko koskaan huomannut, ett\u00e4 valo n\u00e4ytt\u00e4\u00e4 \u201ctaipuvan\u201d? Uima-altaan pohja n\u00e4ytt\u00e4\u00e4 todellista l\u00e4hemp\u00e4n\u00e4 olevalta, tai pillin n\u00e4ytt\u00e4\u00e4 katkeavan veden pinnassa \u2014 kaikki n\u00e4m\u00e4 ilmi\u00f6t johtuvat siit\u00e4, ett\u00e4 valo muuttaa suuntaansa. Mutta yll\u00e4tt\u00e4v\u00e4n harva osaa selitt\u00e4\u00e4, miksi n\u00e4in oikeasti tapahtuu.<\/p>\n<p>T\u00e4ll\u00e4 kertaa sukellamme yli 350 vuotta vanhaan ideaan, jonka kehitti hollantilainen tiedemies. Sen avulla paljastuu, miksi valo taipuu. Katso ensin t\u00e4m\u00e4 video. Alhaalla on vett\u00e4, ylh\u00e4\u00e4ll\u00e4 ilmaa.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u5149\u7dda\u3092\u6c34\u306b\u5165\u308c\u3066\u307f\u308b\u3068\u2026!!\u3010\u5149\u306e\u5c48\u6298\u30fb\u53cd\u5c04\u30fb\u5168\u53cd\u5c04\u3011\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/CCO57Dh9RBU?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>Mik\u00e4 on Huygensin periaate?<\/h3>\n<p>Yksi tunnetuimmista tavoista selitt\u00e4\u00e4 valon taipuminen on <b>Huygensin periaate<\/b>. Hollantilainen tiedemies <b>Christiaan Huygens<\/b> esitti t\u00e4m\u00e4n ajatuksen vuonna 1678. Sen perusidea on, ett\u00e4 aallot levi\u00e4v\u00e4t pienten \u201cmini-aaltojen\u201d eli <b>alkuaaltojen<\/b> kautta. Jokainen aallon piste synnytt\u00e4\u00e4 uusia pieni\u00e4 aaltoja, ja niiden yhteinen muoto muodostaa seuraavan aallon.<\/p>\n<p>T\u00e4m\u00e4n periaatteen avulla voidaan selitt\u00e4\u00e4 paitsi valon taittuminen my\u00f6s johtaa sen lait matemaattisesti.<\/p>\n<h3>Mit\u00e4 alkuaallot oikein ovat?<\/h3>\n<p>Kun heit\u00e4t kiven lampeen, n\u00e4et py\u00f6reiden rengasaaltojen levi\u00e4v\u00e4n veden pinnalla. Jokainen n\u00e4ist\u00e4 laajenevista ympyr\u00f6ist\u00e4 voidaan ajatella <b>alkuaalloksi<\/b>.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35446\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/a494aa09e82aa199eb22b7af45a0e473.jpg\" alt=\"\" width=\"220\" height=\"217\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/a494aa09e82aa199eb22b7af45a0e473.jpg 518w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/a494aa09e82aa199eb22b7af45a0e473-300x297.jpg 300w\" sizes=\"auto, (max-width: 220px) 100vw, 220px\" \/><\/p>\n<p>Mutta miksi joskus aallot n\u00e4ytt\u00e4v\u00e4t suorilta viivoilta, kuten silloin kun veden pintaa ly\u00f6d\u00e4\u00e4n kepill\u00e4?<\/p>\n<p>Huygensin periaatteen mukaan t\u00e4m\u00e4 johtuu siit\u00e4, ett\u00e4 <b>lukemattomat alkuaallot limittyv\u00e4t toistensa kanssa<\/b>. Katso t\u00e4m\u00e4 video.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u898b\u308c\u3070\u4e00\u767a\uff01\u30db\u30a4\u30d8\u30f3\u30b9\u306e\u539f\u7406\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\" width=\"1140\" height=\"855\" src=\"https:\/\/www.youtube.com\/embed\/cP9EYKYwp6k?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>Videosta n\u00e4kee hienosti, miten pienist\u00e4 ympyr\u00e4aalloista syntyy yhdess\u00e4 suora aaltorintama. T\u00e4ss\u00e4 piilee Huygensin periaatteen kauneus: yhdell\u00e4 yksinkertaisella idealla voidaan selitt\u00e4\u00e4 valtava m\u00e4\u00e4r\u00e4 erilaisia aaltoilmi\u00f6it\u00e4.<\/p>\n<h3>Valon diffraktio \u2014 aallot kiert\u00e4v\u00e4t esteet<\/h3>\n<p>Kun aalto kulkee kapean aukon l\u00e4pi, se levi\u00e4\u00e4 aukon j\u00e4lkeen joka suuntaan. T\u00e4t\u00e4 ilmi\u00f6t\u00e4 kutsutaan <b>diffraktioksi<\/b>.<\/p>\n<p>Huygensin periaatteen mukaan aukosta kulkeva osa muuttuu uudeksi alkuaaltojen l\u00e4hteeksi. Siksi aalto alkaa levit\u00e4 py\u00f6re\u00e4sti ja n\u00e4ytt\u00e4\u00e4 \u201ckiert\u00e4v\u00e4n\u201d esteen taakse.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u30db\u30a4\u30d8\u30f3\u30b9\u306e\u539f\u7406\u3068\u6ce2\u306e\u56de\u6298\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u6559\u6750\" width=\"1140\" height=\"855\" src=\"https:\/\/www.youtube.com\/embed\/tvyv_D3_DaA?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>Valon heijastuminen \u2014 miksi tulokulma ja heijastuskulma ovat samat?<\/h3>\n<p>Kun valo osuu peiliin, se pomppaa takaisin t\u00e4sm\u00e4lleen samalla kulmalla. T\u00e4m\u00e4kin voidaan selitt\u00e4\u00e4 elegantisti Huygensin periaatteella.<\/p>\n<p>Peilin pintaan saapuvat alkuaallot synnytt\u00e4v\u00e4t uusia aaltoja yksi toisensa j\u00e4lkeen. N\u00e4iden yhteinen muoto muodostaa heijastuneen aallon, ja siit\u00e4 seuraa luonnollisesti, ett\u00e4 <b>tulokulma on yht\u00e4 suuri kuin heijastuskulma<\/b>.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u53cd\u5c04\u306e\u6cd5\u5247\u304c\u307e\u308b\u308f\u304b\u308a\uff01\u300c\u30db\u30a4\u30d8\u30f3\u30b9\u306e\u539f\u7406\u300d\" width=\"1140\" height=\"855\" src=\"https:\/\/www.youtube.com\/embed\/K238omzCh1M?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>Valon taittuminen \u2014 kun nopeus muuttuu, aalto k\u00e4\u00e4ntyy<\/h3>\n<p>Nyt p\u00e4\u00e4semme itse p\u00e4\u00e4asiaan: miksi valo taittuu?<\/p>\n<p>Ratkaiseva tekij\u00e4 on <b>aallon nopeus<\/b>. Valo kulkee vedess\u00e4 hitaammin kuin ilmassa. Kun aaltorintama saapuu rajapintaan vinosti, ensimm\u00e4isen\u00e4 veteen osuva osa hidastuu heti. Samaan aikaan ilmassa oleva osa liikkuu viel\u00e4 nopeammin eteenp\u00e4in.<\/p>\n<p>T\u00e4m\u00e4 nopeusero saa koko aallon v\u00e4hitellen muuttamaan suuntaansa \u2014 ja juuri sit\u00e4 taittuminen on.<\/p>\n<p><iframe loading=\"lazy\" title=\"[THE\u5b9a\u756a]\u5c48\u6298\u306e\u6cd5\u5247\u3068\u30db\u30a4\u30d8\u30f3\u30b9\u306e\u539f\u7406\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u6559\u6750\" width=\"1140\" height=\"855\" src=\"https:\/\/www.youtube.com\/embed\/QXBs2HdO8r0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>T\u00e4ss\u00e4 videossa n\u00e4kyy monta aallonl\u00e4hdett\u00e4 samanaikaisesti. Oppikirjoissa Huygensin periaate esitet\u00e4\u00e4n usein yksinkertaistetusti yhden t\u00e4rke\u00e4n aallonl\u00e4hteen avulla, jolloin siit\u00e4 voidaan johtaa taittumisen laki eli Snellin laki.<\/p>\n<p>Jos haluat kokeilla useiden aallonl\u00e4hteiden k\u00e4ytt\u00e4ytymist\u00e4 itse, voit testata sit\u00e4 my\u00f6s <a href=\"https:\/\/scratch.mit.edu\/projects\/216301701\/\">t\u00e4ss\u00e4 Scratch-ohjelmassa<\/a>.<\/p>\n<h3>Yksi periaate yhdist\u00e4\u00e4 kaiken<\/h3>\n<p>Diffraktio, heijastuminen ja taittuminen n\u00e4ytt\u00e4v\u00e4t ensi silm\u00e4yksell\u00e4 t\u00e4ysin erilaisilta ilmi\u00f6ilt\u00e4. Silti ne kaikki voidaan selitt\u00e4\u00e4 yhdell\u00e4 ja samalla Huygensin periaatteella.<\/p>\n<p>Yli 350 vuotta vanha idea toimii edelleen modernin fysiikan perustana. Kun seuraavan kerran huomaat valon taipuvan tai aaltojen levi\u00e4v\u00e4n oudosti, yrit\u00e4 kuvitella, miten aallot limittyv\u00e4t toisiinsa. Saatat alkaa n\u00e4hd\u00e4 arkiset ilmi\u00f6t aivan uudessa valossa.<\/p>\n<div class=\"g-ytsubscribe\" data-channelid=\"UCBoF1yPvFnXnSJ_Xe5AmXcw\" data-layout=\"full\" data-count=\"default\"><\/div>\n<h3>Yhteydenotot ja yhteisty\u00f6<\/h3>\n<p>Tiede kuuluu kaikille! Sivustolta l\u00f6yd\u00e4t hauskoja kotona teht\u00e4vi\u00e4 tiedekokeita ja helposti ymm\u00e4rrett\u00e4vi\u00e4 selityksi\u00e4 niiden taustalle. K\u00e4y tutkimassa lis\u00e4\u00e4!<\/p>\n<p>\u30fb\u201dKagakun Netach\u014d\u201d -sivuston sis\u00e4ll\u00f6ist\u00e4 on julkaistu my\u00f6s kirja. Lis\u00e4tiedot <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n\u30fbLis\u00e4\u00e4 Kuwako Kenist\u00e4 <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n\u30fbYhteisty\u00f6pyynn\u00f6t (kirjoitukset, luennot, tiedety\u00f6pajat, TV-valvonta ja esiintymiset) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbUusimmat artikkelip\u00e4ivitykset l\u00f6ytyv\u00e4t my\u00f6s <a href=\"https:\/\/x.com\/kuwako\">X:st\u00e4<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Kagakun Neta Channel<\/a> julkaisee jatkuvasti uusia tiedekoevideoita!<\/p>\n<p><strong>\u30bf\u30a4\u30c8\u30eb\u6848\uff1a<\/strong> Miksi valo taipuu? 350 vuotta vanha neron idea selitt\u00e4\u00e4 peilit, sateenkaaret ja veden oudot temput<\/p>\n<h3>\uff15\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p>\u30ad\u30fc\u30f3\u3068\u51b7\u3048\u308b\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\uff01\u6c17\u6e29\u304c\u4e0a\u304c\u3063\u3066\u304f\u308b\u3053\u306e\u6642\u671f\u30fb\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u3092\u4f7f\u3063\u305f\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\u306e\u5b9f\u9a13\u306f\u3044\u304b\u304c\uff1f<\/p>\r\n<p><img class=\"alignnone wp-image-39516 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg 1406w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-300x168.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-1024x572.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-768x429.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-320x180.jpg 320w\" alt=\"\" width=\"453\" height=\"253\" \/><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=39513\">\u6db2\u4f53\u30bc\u30ed\uff01\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u304c\u6d88\u3048\u308b\u307e\u3067\u306e\uff13\u6642\u9593\u3092\u79d1\u5b66\u3059\u308b\uff08\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\uff09<\/a><\/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>4\u670830\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306e<a href=\"https:\/\/phys-edu.net\/wp\/?p=62906\">\u79d1\u5b66\u76e3\u4fee\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<li>5\u67088\u65e5\uff08\u91d1\uff09<a href=\"https:\/\/phys-edu.net\/wp\/?p=62629\">\u7406\u79d1\u6559\u80b2\u30cb\u30e5\u30fc\u30b9<\/a>\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\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<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000\u5343\u8449\u5927\u5b66\u306e\u516c\u958b\u7814\u7a76\u4f1a\uff08\u4e2d\u5b66\u7406\u79d1\u306b\u3064\u3044\u3066\u6388\u696d\u516c\u958b\u4e88\u5b9a\uff09<\/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 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<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<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<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<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \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","protected":false},"excerpt":{"rendered":"<p>T\u00e4\u00e4ll\u00e4 Science Trainer Kuwako Ken. Joka p\u00e4iv\u00e4 on uusi koe. Oletko koskaan huomannut, ett\u00e4 valo n\u00e4ytt\u00e4\u00e4 \u201ctaipuv [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":63345,"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-63358","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\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-13-4.07.26.jpeg","jetpack-related-posts":[{"id":63266,"url":"https:\/\/phys-edu.net\/wp\/?p=63266&lang=fi","url_meta":{"origin":63358,"position":0},"title":"Yleisurheilup\u00e4iv\u00e4n py\u00f6rteest\u00e4 valon taittumiseen! T\u00e4ydellisen heijastumisen salaisuus selitettyn\u00e4 (Huygensin periaate)","author":"\u6851\u5b50 \u7814","date":"2026\u5e745\u670810\u65e5","format":false,"excerpt":"T\u00e4ss\u00e4 tiedeblogia pit\u00e4v\u00e4 Kuwako Ken. 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\/2020\/04\/584cbdc9b7f6924085f7e2737511121c.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/584cbdc9b7f6924085f7e2737511121c.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/584cbdc9b7f6924085f7e2737511121c.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/584cbdc9b7f6924085f7e2737511121c.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":55569,"url":"https:\/\/phys-edu.net\/wp\/?p=55569&lang=fi","url_meta":{"origin":63358,"position":1},"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":[]},{"id":52847,"url":"https:\/\/phys-edu.net\/wp\/?p=52847&lang=fi","url_meta":{"origin":63358,"position":2},"title":"Miksi banaani n\u00e4ytt\u00e4\u00e4 keltaiselta? Paljasta valon ja hajavaloheijastuksen salaisuudet kotona","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670821\u65e5","format":false,"excerpt":"Hei, olen tiedekouluttaja Ken Kuwako. Joka p\u00e4iv\u00e4 o\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/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%88-2025-09-21-17.24.26.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%88-2025-09-21-17.24.26.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%88-2025-09-21-17.24.26.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%88-2025-09-21-17.24.26.jpg?resize=700%2C400&ssl=1 2x, 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%88-2025-09-21-17.24.26.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":62015,"url":"https:\/\/phys-edu.net\/wp\/?p=62015&lang=fi","url_meta":{"origin":63358,"position":3},"title":"Luo auringonlasku muovipullolla! 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Jo\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\/08\/ebafc590c64c3822486e07c3afffa682.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/ebafc590c64c3822486e07c3afffa682.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/ebafc590c64c3822486e07c3afffa682.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/ebafc590c64c3822486e07c3afffa682.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/08\/ebafc590c64c3822486e07c3afffa682.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":60682,"url":"https:\/\/phys-edu.net\/wp\/?p=60682&lang=fi","url_meta":{"origin":63358,"position":4},"title":"Miksi aallot taipuvat? 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Jo\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\/2018\/04\/2d604cb7864fb470182569960ec46570.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/04\/2d604cb7864fb470182569960ec46570.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/04\/2d604cb7864fb470182569960ec46570.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/04\/2d604cb7864fb470182569960ec46570.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":52379,"url":"https:\/\/phys-edu.net\/wp\/?p=52379&lang=fi","url_meta":{"origin":63358,"position":5},"title":"Laatikko laatikon sis\u00e4ll\u00e4! Tee valon taianomainen CMY-vesikuutio! (Valon taittuminen ja v\u00e4ritrion v\u00e4rit)","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670816\u65e5","format":false,"excerpt":"Hei, olen tiedekouluttaja Ken Kuwako. Jokainen p\u00e4i\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\/571792d02ea591ad9643207cf5e606fb.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/571792d02ea591ad9643207cf5e606fb.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/571792d02ea591ad9643207cf5e606fb.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/571792d02ea591ad9643207cf5e606fb.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/63358","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=63358"}],"version-history":[{"count":1,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/63358\/revisions"}],"predecessor-version":[{"id":63359,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/63358\/revisions\/63359"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/63345"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=63358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=63358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=63358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}