{"id":53342,"date":"2025-09-28T06:03:39","date_gmt":"2025-09-27T21:03:39","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=53342"},"modified":"2025-09-28T06:03:39","modified_gmt":"2025-09-27T21:03:39","slug":"the-magic-of-magnetism-how-a-spinning-top-defies-gravity-and-why-the-earth-and-temperature-matter","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=53342&lang=en","title":{"rendered":"The Magic of Magnetism: How a Spinning Top Defies Gravity (and Why the Earth and Temperature Matter)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I&#8217;m Ken Kuwako, your Science Trainer. Every Day is an Experiment!<\/strong><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-42238 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/44034e616a1ec17c465e94974736222a.jpg\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/44034e616a1ec17c465e94974736222a.jpg 1236w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/44034e616a1ec17c465e94974736222a-300x199.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/44034e616a1ec17c465e94974736222a-1024x678.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/44034e616a1ec17c465e94974736222a-768x508.jpg 768w\" alt=\"\" width=\"333\" height=\"220\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/amzn.to\/4pKxjqM\">Floating Top U-CAS<\/a> (Amazon)<\/p>\n<p>Have you ever seen a top float mysteriously in the air, as if by magic? At first glance, it might look like a superpower, but it&#8217;s actually a phenomenon that can be explained by science. Today, let me introduce you to the wondrous world of invisible forces through the challenge of the toy &#8220;Floating Top U-CAS,&#8221; where you can experience this scientific magic firsthand.<\/p>\n<h3>Is It Magic? The Secret to the Floating Top<\/h3>\n<p>Recently, I tried out the &#8220;Floating Top U-CAS&#8221; with my science club students. The U-CAS has magnets embedded in both the top and the base. As you know, magnets have North and South poles: like poles (N and N, S and S) repel each other, and unlike poles (N and S) attract. The U-CAS uses this magnetic repulsive force to suspend the top in the air, making it a truly fascinating toy.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-42240 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/30f83e369f3a25a291a1e810b2a2ff04.jpg\" alt=\"\" width=\"752\" height=\"336\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/30f83e369f3a25a291a1e810b2a2ff04.jpg 1358w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/30f83e369f3a25a291a1e810b2a2ff04-300x134.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/30f83e369f3a25a291a1e810b2a2ff04-1024x457.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/30f83e369f3a25a291a1e810b2a2ff04-768x343.jpg 768w\" sizes=\"auto, (max-width: 752px) 100vw, 752px\" \/><\/p>\n<p>However, making the top float is much harder than you might think! For the top to hover perfectly, the downward pull of the Earth\u2014Gravity\u2014must be precisely balanced by the upward push\u2014the Repulsive Force\u2014from the base magnet, like a perfect tug-of-war. The real thrill, and the difficulty, of this experiment lies in finding that precise, exquisite balance by adjusting the included weights.<\/p>\n<h3>Why the Spin? The Key to Stability is the &#8220;Gyroscope Effect&#8221;<\/h3>\n<p>After much struggle, the moment of success finally arrived!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-42241 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/7f48dd9eeebf5d1e477042cb4cf5a400.jpg\" alt=\"\" width=\"538\" height=\"318\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/7f48dd9eeebf5d1e477042cb4cf5a400.jpg 538w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/7f48dd9eeebf5d1e477042cb4cf5a400-300x177.jpg 300w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/p>\n<p><iframe loading=\"lazy\" title=\"\u91cd\u529b\u306b\u9006\u3089\u3063\u3066\u6d6e\u304f\u30b3\u30de\u300c\u6d6e\u904a\u30b4\u30deU-CAS\u300d\u306b\u6311\u6226\uff01\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/TQRcIg1YB2w?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>Now, doesn&#8217;t a new question pop into your mind? &#8220;Why do we have to spin the top?&#8221;<\/p>\n<p>The truth is, if you simply rely on the magnetic repulsion, the top will immediately lose its balance and fall over. This is where the &#8220;Gyroscope Effect&#8221; produced by spinning comes into play. A rotating object has the tendency to maintain its axis of rotation. The reason a fast-moving bicycle is hard to tip over is also thanks to the gyroscope effect of the spinning wheels. By spinning the top, its posture stabilizes, allowing it to maintain the delicate balance between magnetic force and gravity and continue to float beautifully.<\/p>\n<h3>Is Earth a Magnet, Too? The Mystery of Floating Conditions Changing Daily<\/h3>\n<p>What&#8217;s even more fascinating is that this perfect balance subtly changes depending on the latitude and temperature.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-42239 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/eba3bb8b5e85d95ccd3c72cf4cc5ac53.jpg\" alt=\"\" width=\"452\" height=\"540\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/eba3bb8b5e85d95ccd3c72cf4cc5ac53.jpg 452w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/02\/eba3bb8b5e85d95ccd3c72cf4cc5ac53-251x300.jpg 251w\" sizes=\"auto, (max-width: 452px) 100vw, 452px\" \/><\/p>\n<p>When we conducted the experiment at Chiba University Junior High School (on January 28th, room temperature 10\u00b0C), we succeeded by adding a total of 8.4g of weight: two large metal pieces (3g x 2), two medium metal pieces (1g x 2), two medium plastic pieces (0.2g x 2), plus a small rubber stopper.<\/p>\n<p>The truth is, the Earth we live on is itself a giant magnet (geomagnetism). Because of this, the magnetic influence the top receives changes slightly depending on the location (latitude). Furthermore, because magnets have the property of becoming slightly weaker when the temperature rises, the optimal weight also changes depending on the room temperature.<\/p>\n<p>Later, when we used this for a science show at school, the students managed to succeed through their efforts, but we still needed to readjust the weight to match the day&#8217;s environment. The Floating Top, whose condition changes daily, is almost like a living thing. Interacting with the invisible laws of nature to achieve a single successful phenomenon\u2014that might be the true essence of what makes science experiments so fun.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/amzn.to\/4pKxjqM\">Floating Top U-CAS<\/a> (Amazon)<\/p>\n<p>Next, let&#8217;s try spinning the Perpetual Top.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"2oiJEXChSw\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=48633\">\u4e00\u5ea6\u56de\u3057\u305f\u3089\u6570\u6642\u9593\u6b62\u307e\u3089\u305a\u56de\u308a\u7d9a\u3051\u308b\u6700\u5f37\u30b3\u30de\uff01\u300c\u6c38\u4e45\u30b4\u30de\u300d\u306e\u8b0e\uff08\u30d9\u30a4\u30d6\u30ec\u30fc\u30c9\u8d85\u3048\uff01\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u4e00\u5ea6\u56de\u3057\u305f\u3089\u6570\u6642\u9593\u6b62\u307e\u3089\u305a\u56de\u308a\u7d9a\u3051\u308b\u6700\u5f37\u30b3\u30de\uff01\u300c\u6c38\u4e45\u30b4\u30de\u300d\u306e\u8b0e\uff08\u30d9\u30a4\u30d6\u30ec\u30fc\u30c9\u8d85\u3048\uff01\uff09&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=48633&#038;embed=true#?secret=yoXt5jjB7E#?secret=2oiJEXChSw\" data-secret=\"2oiJEXChSw\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>Contact and Requests<\/h3>\n<p>Bringing the wonders and fun of science closer to you! I&#8217;ve put together easy-to-understand tips and fun science experiments you can do at home. Feel free to search around!<br \/>\n\u30fbAbout the administrator, Ken Kuwako: <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">Click here<\/a><br \/>\n\u30fbFor various requests (writing, lectures, science workshops, TV supervision, appearances, etc.): <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">Click here<\/a><br \/>\n<span class=\"s2\">\u30fbArticle updates are delivered on <a href=\"https:\/\/x.com\/kuwako\">X (formerly Twitter)<\/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>We post experiment videos on the <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Topic Channel<\/a>!<\/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 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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> \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>I&#8217;m Ken Kuwako, your Science Trainer. Every Day is an Experiment! Floating Top U-CAS (Amazon) Have you e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":42241,"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":[781],"tags":[],"class_list":["post-53342","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\/2023\/02\/7f48dd9eeebf5d1e477042cb4cf5a400.jpg","jetpack-related-posts":[{"id":56876,"url":"https:\/\/phys-edu.net\/wp\/?p=56876&lang=en","url_meta":{"origin":53342,"position":0},"title":"Lift It with Just One Chopstick!? The Science Magic of Rice and a Plastic Bottle (Unleashing the Power of Friction!)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7412\u67087\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\/2025\/10\/%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%88-2025-10-14-4.44.16.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/10\/%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%88-2025-10-14-4.44.16.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/10\/%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%88-2025-10-14-4.44.16.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":54555,"url":"https:\/\/phys-edu.net\/wp\/?p=54555&lang=en","url_meta":{"origin":53342,"position":1},"title":"It\u2019s Not Magic! 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