{"id":64613,"date":"2026-06-18T04:20:59","date_gmt":"2026-06-17T19:20:59","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=64613"},"modified":"2026-06-18T04:20:59","modified_gmt":"2026-06-17T19:20:59","slug":"why-do-your-legs-go-numb-in-seiza-the-science-behind-the-leg-cross-10-second-cure","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=64613&lang=en","title":{"rendered":"Why Do Your Legs Go Numb in Seiza? The Science Behind the &#8220;Leg Cross 10-Second&#8221; Cure"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\">I&#8217;m Ken Kuwako, a science trainer. Every day is an experiment.<\/span><\/p>\n<h3>Why Do Your Feet Go Numb from Kneeling? The Science Behind the &#8220;Cross Your Legs&#8221; 10-Second Fix<\/h3>\n<p>If you&#8217;ve ever sat in seiza (the traditional Japanese kneeling position) for any length of time \u2014 at a funeral, a tea ceremony, or a formal dinner \u2014 you know that creeping, pins-and-needles feeling that eventually turns your feet into completely useless stumps. Most of us have had that mortifying moment where we try to stand up and nearly collapse. But what&#8217;s actually going on inside your legs when that happens?<\/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>It turns out the answer involves a fascinating interplay between your nerves and your circulatory system. And there&#8217;s a surprisingly elegant trick to fix it fast: cross one calf over the other and hold for about 10 seconds. But why on earth would that work? Let&#8217;s dig into the science.<br \/>\n<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>What&#8217;s Actually Happening When Your Foot Goes Numb<\/h3>\n<p>When you kneel in seiza, the blood vessels behind your knees and around your ankles get compressed, cutting off circulation to your feet. This creates a state of hypoxia \u2014 oxygen deprivation \u2014 in the nerves of your lower legs. Nerves are surprisingly sensitive to oxygen levels, and when they&#8217;re not getting enough, they start firing off alarm signals to the brain: &#8220;Something is wrong down here.&#8221;<br \/>\nIf the compression continues, the nerves eventually give up and temporarily shut down \u2014 and that&#8217;s when you lose feeling in your feet entirely. You&#8217;ve essentially put your own foot to sleep.<br \/>\nThe truly intense part, that sharp, electric tingling sensation, actually hits when the pressure is released and blood flow returns. The sudden rush of oxygenated blood re-stimulates the nerves all at once, triggering that unmistakable burst of prickling pain. In other words, the worst of the numbness doesn&#8217;t come while you&#8217;re kneeling \u2014 it hits right when you think you&#8217;re getting relief.<\/p>\n<h3>Why the &#8220;Cross Your Legs&#8221; Trick Actually Works<\/h3>\n<p>There&#8217;s a technique where you cross one calf over the other and hold the position for about 10 seconds to make the numbness go away faster (see the video above). I haven&#8217;t tried it myself yet, but from a physiological standpoint, it makes a lot of sense. Here are three reasons why:<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 Shifting the pressure point<br \/>\nCrossing your legs changes where your body weight is distributed, temporarily relieving the compression that was squeezing the blood vessels behind your knees.<br \/>\n\u2461 Activating the calf muscle pump<br \/>\nWhen the calves press against each other, it applies gentle external pressure to the muscles, which helps push venous blood back up toward the heart. Your calves are sometimes called &#8220;the second heart&#8221; for exactly this reason \u2014 they play a crucial role in pumping blood upward against gravity, especially when you&#8217;ve been still for a while.<\/p>\n<blockquote><p>The muscles of the calf play a vital role in returning blood to the heart through the veins. Known as the &#8220;muscle pump,&#8221; this mechanism works by the rhythmic contraction and relaxation of the calf muscles, which push blood upward while valves in the veins prevent it from flowing back down. Because this function is so similar to the pumping action of the heart itself, the lower legs are often called the &#8220;second heart.&#8221; Walking, in particular, activates this pump dramatically, which is why doctors so often recommend it for cardiovascular health.<br \/>\n\u2014 Why are the legs called &#8220;the second heart&#8221;?<\/p>\n<p>https:\/\/www.ashiho.clinic\/article\/second-heart<\/p><\/blockquote>\n<p>\u2462 Restoring blood flow to the nerves<br \/>\nOnce circulation resumes, oxygen reaches the nerves again and the abnormal electrical signals start to normalize \u2014 bringing you back to full sensation.<br \/>\nIt&#8217;s a clever little hack, and I&#8217;m definitely going to try it next time I find myself suffering through a long formal meal.<\/p>\n<h3>How to Prevent Numbness in the First Place<\/h3>\n<p>The root cause of seiza-induced numbness is simply staying still too long. A few small adjustments can keep blood flowing and spare you the agony:<br \/>\nShift your weight regularly<br \/>\nEvery five minutes or so, subtly rock your weight from side to side, or wiggle your toes a little. Even tiny movements help maintain circulation.<br \/>\nCushion your ankles<br \/>\nPlacing a thin cushion or folded cloth under your ankles reduces the angle of compression on the blood vessels, giving them more room to do their job.<br \/>\nUse a chair when you need to<br \/>\nIf you&#8217;re prone to numbness, don&#8217;t tough it out. Whether it&#8217;s a formal ceremony or a long meeting, sitting in a chair is the smart call. Repeatedly cutting off circulation to your peripheral nerves isn&#8217;t just uncomfortable \u2014 over time, it can cause real damage.<\/p>\n<h3>The Science Hidden in Everyday Life<\/h3>\n<p>A simple thing like a numb foot turns out to be a window into some remarkable physiology: oxygen-sensing nerves, venous return mechanisms, and the electrochemical recovery of neural tissue. Once you start asking &#8220;why?&#8221; about the little things your body does, the world gets a lot more interesting.<\/p>\n<h3>Contact &amp; Requests<\/h3>\n<p>Making science fun and accessible for everyone! Explore home experiments, science tips, and more on this site.<\/p>\n<p>This blog&#8217;s content is now available as a book \u2014 details here<br \/>\nLearn more about Ken Kuwako here<br \/>\nFor writing, speaking, experiment workshops, TV supervision\/appearances, and other inquiries, click here<br \/>\nFollow on X for updates!<\/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>Watch experiment videos on the <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Neta Channel<\/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>I&#8217;m Ken Kuwako, a science trainer. Every day is an experiment. Why Do Your Feet Go Numb from Kneeling? T [&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":[781],"tags":[],"class_list":["post-64613","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-en"],"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":62600,"url":"https:\/\/phys-edu.net\/wp\/?p=62600&lang=en","url_meta":{"origin":64613,"position":0},"title":"One LED, Seven Colors? Master the &#8220;Primary Colors of Light&#8221; with This Palm-Sized Experiment!","author":"\u6851\u5b50 \u7814","date":"2026\u5e744\u670821\u65e5","format":false,"excerpt":"I\u2019m Ken Kuwako, your science trainer. Every day is\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":61765,"url":"https:\/\/phys-edu.net\/wp\/?p=61765&lang=en","url_meta":{"origin":64613,"position":1},"title":"What on Earth Is It Called \u201cDog\u2019s Balls\u201d!? The Tiny Blue Flower Veronica persica and Its Shocking Survival Strategy [Viewer Discretion Advised!?]","author":"\u6851\u5b50 \u7814","date":"2026\u5e743\u670823\u65e5","format":false,"excerpt":"I'm Ken Kuwako, your Science Trainer. Every day is\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/03\/%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%88-2026-03-22-5.38.19.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/03\/%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%88-2026-03-22-5.38.19.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/03\/%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%88-2026-03-22-5.38.19.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/03\/%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%88-2026-03-22-5.38.19.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":59484,"url":"https:\/\/phys-edu.net\/wp\/?p=59484&lang=en","url_meta":{"origin":64613,"position":2},"title":"The Science Behind the Jiggle! 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Every day is an \u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"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":61959,"url":"https:\/\/phys-edu.net\/wp\/?p=61959&lang=en","url_meta":{"origin":64613,"position":3},"title":"Style Meets Science! 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