{"id":57885,"date":"2025-12-27T04:45:16","date_gmt":"2025-12-26T19:45:16","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=57885"},"modified":"2025-12-27T04:47:25","modified_gmt":"2025-12-26T19:47:25","slug":"%e3%80%90quiz%e3%80%91which-is-heavier-after-the-cut-a-carrot-at-the-balance-point-exploring-torque-with-vegetables","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=57885&lang=en","title":{"rendered":"\u3010Quiz\u3011Which Is Heavier After the Cut? A Carrot at the Balance Point! \u2013 Exploring Torque with Vegetables"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I\u2019m Ken Kuwako, your Science Trainer. Every day is an experiment!<\/strong><\/span><\/p>\n<p>Sometimes, our intuition gets &#8220;tricked&#8221; by the laws of physics. For instance, imagine a single carrot perfectly balanced on a string. If you were to cut that carrot right at the balancing point, wouldn&#8217;t you think both sides would weigh the same? Surprisingly, this simple scenario hides a secret of physics that supports our daily lives. Today, I\u2019ve got a &#8220;Physics Quiz&#8221; that might make your brain itch a little. Let\u2019s think through it together!<\/p>\n<h3>Quick Quiz Time! Ta-da!<\/h3>\n<p>Suppose we hang a carrot by a string like this. (Try to visualize the diagram!)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6601 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/06\/5151c76a5135c91255b85625631fe474-300x196.jpg\" alt=\"Screenshot 2014-06-08 7.09.28\" width=\"429\" height=\"280\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/06\/5151c76a5135c91255b85625631fe474-300x196.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2014\/06\/5151c76a5135c91255b85625631fe474.jpg 356w\" sizes=\"auto, (max-width: 429px) 100vw, 429px\" \/><\/p>\n<p>In this setup, we tied the string slightly to the right of the center, on the thicker side, to keep it perfectly horizontal. Now, here is the challenge: If we were to slice the carrot in two exactly where the string is, which part would be heavier: the left side (the thin end) or the right side (the thick end)?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-46847 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/e3976bca95cadf9651f9482429b4abc1.jpg\" alt=\"\" width=\"441\" height=\"262\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/e3976bca95cadf9651f9482429b4abc1.jpg 1254w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/e3976bca95cadf9651f9482429b4abc1-300x178.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/e3976bca95cadf9651f9482429b4abc1-1024x608.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/e3976bca95cadf9651f9482429b4abc1-768x456.jpg 768w\" sizes=\"auto, (max-width: 441px) 100vw, 441px\" \/><\/p>\n<p>Take a moment to think about it. Got an answer? Let\u2019s reveal the truth! I&#8217;ll explain the answer in this video.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u4eba\u53c2\u3092\u3064\u308a\u5408\u3044\u306e\u4f4d\u7f6e\u3067\u5207\u308b\u3068\u3001\u3069\u3061\u3089\u304c\u91cd\u3044\uff1f\u3000I cut a carrot at a position of the balance\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/zX9WPATDleY?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>A Surprising Result! The weights were actually different?<\/h3>\n<p>Believe it or not, they aren&#8217;t equal! One side is clearly heavier. &#8220;Wait, which one?&#8221; you might ask. This is a classic masterpiece in the world of physics puzzles. Let&#8217;s break down why the weights differ. The keyword here is Moment of Force (or Torque).<\/p>\n<p>For the thick side:<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-46845\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2a723fa5718edb7f82477271ab8e8efe.jpg\" alt=\"\" width=\"481\" height=\"438\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2a723fa5718edb7f82477271ab8e8efe.jpg 974w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2a723fa5718edb7f82477271ab8e8efe-300x274.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2a723fa5718edb7f82477271ab8e8efe-768x700.jpg 768w\" sizes=\"auto, (max-width: 481px) 100vw, 481px\" \/><\/p>\n<p style=\"text-align: center;\">68g<\/p>\n<p>And for the thin side: <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-46846 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2f8333b9f28917325cbf0f57295ffd25.jpg\" alt=\"\" width=\"487\" height=\"375\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2f8333b9f28917325cbf0f57295ffd25.jpg 1166w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2f8333b9f28917325cbf0f57295ffd25-300x231.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2f8333b9f28917325cbf0f57295ffd25-1024x789.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/10\/2f8333b9f28917325cbf0f57295ffd25-768x591.jpg 768w\" sizes=\"auto, (max-width: 487px) 100vw, 487px\" \/><\/p>\n<p style=\"text-align: center;\">56g<\/p>\n<p>That\u2019s right\u2014the thick side is heavier!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/23d88018f233b1d119a6c9c8440f8484-300x198.jpg\" alt=\"Screenshot 2013-12-07 18.43.40\" width=\"356\" height=\"235\" \/><\/p>\n<p style=\"text-align: center;\">The thick side is heavier, while the thin side is lighter.<\/p>\n<p>Why does this happen? Let&#8217;s use a bit of mathematical logic to solve this mystery.<\/p>\n<h3>What is the &#8220;Turning Force&#8221;? Understanding Moments<\/h3>\n<p>Imagine trying to loosen a rusty bolt with a wrench. If you want to apply the strongest force possible, where do you grab the wrench? Instinctively, you probably grab the very end of the handle. This is because the further you are from the center (the axis of rotation), the more &#8220;turning power&#8221; you generate with less effort. This concept is called a Moment. Mathematically, it looks like this:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/db707bbf93d4ae3e52cdf380ec3f2c6b.jpg\" alt=\"Screenshot 2013-12-07 18.43.15\" width=\"433\" height=\"218\" \/><\/p>\n<p style=\"text-align: center;\">M = F \u00d7 L<\/p>\n<p style=\"text-align: center;\">Moment = Force \u00d7 Arm Length<\/p>\n<p>This formula is vital! It&#8217;s not just about the &#8220;weight (force)&#8221;; the &#8220;distance from the center (arm length)&#8221; is what ultimately determines the rotational strength.<\/p>\n<h3>When Moments Balance Out<\/h3>\n<p>Let&#8217;s make a simple mobile using a light rod and two identical weights. In this case, if you tie the string exactly in the middle of the rod, it stays perfectly level.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/b1a58eab5a631d4255b7deab281b5224-300x126.jpg\" alt=\"Screenshot 2013-12-07 18.43.19\" width=\"400\" height=\"168\" \/><\/p>\n<p>If we calculate the moments around the string (the axis), they are equal on both sides:<\/p>\n<p>Left side: 2N \u00d7 10cm = 20N\u00b7cm (Counter-clockwise)<\/p>\n<p>Right side: 2N \u00d7 10cm = 20N\u00b7cm (Clockwise)<\/p>\n<p>When the clockwise and counter-clockwise moments are equal, the object stops rotating and stays still. We call this &#8220;Moment Equilibrium.&#8221;<\/p>\n<h3>What happens when we hang different weights?<\/h3>\n<p>Now, let&#8217;s get to the heart of the matter. Let&#8217;s hang two different weights: a heavy 6N ball and a light 2N ball. To make them balance, you can&#8217;t tie the string in the middle; you have to shift it closer to the heavier side.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/d349d9bc212a778faca964ed2b21f674-300x101.jpg\" alt=\"Screenshot 2013-12-07 18.43.24\" width=\"300\" height=\"101\" \/><\/p>\n<p>In practice, they will balance at a point like this:<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/c75575ddeff2921e85b6e7682ad729cb-300x134.jpg\" alt=\"Screenshot 2013-12-07 18.43.30\" width=\"300\" height=\"134\" \/><\/p>\n<p>Left side: 6N \u00d7 5cm = 30N\u00b7cm<\/p>\n<p>Right side: 2N \u00d7 15cm = 30N\u00b7cm<\/p>\n<p>The math checks out\u2014the moments are identical! But if we were to snip the rod right at the string&#8230;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/abdea3b7e4f5f5c2b200ab2d8fffd5a8.jpg\" alt=\"Screenshot 2013-12-07 18.43.36\" width=\"294\" height=\"142\" \/><\/p>\n<p>Naturally, the left piece (carrying the 6N weight) is much heavier than the right piece (carrying the 2N weight).<\/p>\n<h3>The Carrot Mystery Solved!<\/h3>\n<p>Now, let&#8217;s go back to our original carrot.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/e5741d259bf9fef45cc83c40c62c5a17.jpg\" alt=\"Screenshot 2013-12-07 18.41.39\" width=\"257\" height=\"159\" \/><\/p>\n<p>The string was tied much closer to the thick end than the thin end. This is exactly the same situation as our &#8220;6N vs 2N&#8221; experiment.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/23d88018f233b1d119a6c9c8440f8484-300x198.jpg\" alt=\"Screenshot 2013-12-07 18.43.40\" width=\"168\" height=\"111\" \/><\/p>\n<p>Because the thin, long part is far from the center (the string), even a small weight can generate a large moment (turning force). Conversely, because the thick part is so close to the center, it has to be significantly heavier to maintain the balance. Therefore, the answer is: The thick half is heavier! When you visualize the forces, it looks something like this:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1214 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/3d7e909a63ec95c7eec71192cba11722.jpg\" alt=\"Screenshot 2013-12-07 18.41.39 3\" width=\"257\" height=\"239\" \/><\/p>\n<p>When you look through the lens of physics, even a single vegetable in the supermarket becomes a gateway to a world of beautiful equations and balance. I\u2019ve shared many more fascinating problems like this in my textbook for the Science Proficiency Test. Check it out if you\u2019re curious!<\/p>\n<h3>Inquiries &amp; Requests<\/h3>\n<p>Bringing the wonder and fun of science closer to you! I&#8217;ve compiled plenty of fun experiments you can do at home and the tips to make them work. Feel free to explore!<\/p>\n<p>My &#8220;Science Notebook&#8221; content is now a book! Details <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a>.<\/p>\n<p>Learn more about the author, Ken Kuwako, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a>.<\/p>\n<p>For requests (writing, speaking, science workshops, TV supervision\/appearances, etc.), click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a>. <span class=\"s2\">&#8211; Get the latest updates 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> Watch experiment videos on the <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Material Channel<\/a>!<\/p>\n<h3>\uff13\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<ul>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=44853\">\u62bc\u3057\u82b1\u3092\u4f5c\u308d\u3046\uff01<\/a>\uff1a\u6885\u3084\u685c\u306e\u82b1\u306e\u62bc\u3057\u82b1\u3092\u4f5c\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u7279\u5225\u306a\u30b1\u30fc\u30b9\u306b\u5165\u308c\u308b\u3068\u3001\u9577\u304f\u4fdd\u5b58\u3067\u304d\u3066\u3001\u3057\u304a\u308a\u306b\u3082\u306a\u308a\u307e\u3059\u3002<\/li>\r\n<\/ul>\r\n<p><a href=\"https:\/\/phys-edu.net\/wp\/?p=44853\"><img class=\"alignnone wp-image-45250 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/6f7f8f2c6502a509617154ad6401e859.jpg\" alt=\"\" width=\"291\" height=\"302\" \/><\/a><\/p>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u30fb\u79d1\u5b66\u76e3\u4fee\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=59767\">\u6708\u66dc\u304b\u3089\u591c\u66f4\u304b\u3057<\/a>\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306b\u3066\u79d1\u5b66\u76e3\u4fee\u30fb\u51fa\u6f14\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=60859\">2\u670827\u65e5\u653e\u9001\u4e88\u5b9a\u300c\u30c1\u30b3\u3061\u3083\u3093\u306b\u53f1\u3089\u308c\u308b\u300d\uff08NHK\uff09\u306e\u79d1\u5b66\u76e3\u4fee\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<\/ul>\r\n<h3><span style=\"font-size: medium;\"><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>1\/27 <a href=\"https:\/\/phys-edu.net\/wp\/?p=59153\">\u300e\u898b\u3048\u306a\u3044\u529b\u3068\u904a\u307c\u3046\uff01\u96fb\u6c17\u30fb\u78c1\u77f3\u30fb\u71b1\u306e\u5b9f\u9a13\u300f\uff08\u5de5\u5b66\u793e\uff09\u3092\u57f7\u7b46\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=58878\">\u30b5\u30af\u30bb\u30b915 \uff12\u6708\u53f7<\/a>\u306b\u3066\u300c\u6d78\u900f\u5727\u300d\u306b\u95a2\u3059\u308b\u79d1\u5b66\u8a18\u4e8b\u3092\u57f7\u7b46\u3057\u307e\u3057\u305f\u3002<\/li>\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 <a href=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg\"><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\" \/><\/a> <\/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 <a href=\"https:\/\/amzn.to\/4aNldWh\"><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\" \/><\/a><\/li>\r\n<\/ul>\r\n<h3><span style=\"font-size: medium;\"><b>\u8b1b\u5e2b\u30fb\u30b7\u30e7\u30fc\u30fb\u305d\u306e\u4ed6\u304a\u77e5\u3089\u305b<\/b><\/span><\/h3>\r\n<ul>\r\n<li>3\/20\uff08\u91d1\uff09\u3000\u65e5\u672c\u7406\u79d1\u6559\u80b2\u5b66\u4f1a\u30aa\u30f3\u30e9\u30a4\u30f3\u5168\u56fd\u5927\u4f1a2026\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=60439\">\u6163\u6027\u306e\u6cd5\u5247\u306e\u6982\u5ff5\u5f62\u6210\u3092\u76ee\u6307\u3057\u305f\u63a2\u7a76\u7684\u306a\u5b66\u3073\u306e\u5b9f\u8df5\u300d\u306b\u3064\u3044\u3066\u767a\u8868<\/a>\u3057\u307e\u3059\u3002B\u4f1a\u5834 \u7b2c\uff13\u30bb\u30c3\u30b7\u30e7\u30f3\uff1a 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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","protected":false},"excerpt":{"rendered":"<p>I\u2019m Ken Kuwako, your Science Trainer. Every day is an experiment! Sometimes, our intuition gets &#8220;tricked [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":57890,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","vkexunit_cta_each_option":"","footnotes":""},"categories":[781],"tags":[],"class_list":["post-57885","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\/12\/5151c76a5135c91255b85625631fe474-300x196-1.jpg","jetpack-related-posts":[{"id":57379,"url":"https:\/\/phys-edu.net\/wp\/?p=57379&lang=en","url_meta":{"origin":57885,"position":0},"title":"Magical Art Born from Physics \u2014 Lose Yourself in the Beauty of the Pendulum Wave","author":"\u6851\u5b50 \u7814","date":"2025\u5e7412\u670816\u65e5","format":false,"excerpt":"Have You Heard of the Pendulum Wave? Have you ever\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\/12\/%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%88-2025-12-16-4.35.58.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-16-4.35.58.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-16-4.35.58.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-16-4.35.58.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-16-4.35.58.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":59110,"url":"https:\/\/phys-edu.net\/wp\/?p=59110&lang=en","url_meta":{"origin":57885,"position":1},"title":"Everyday Objects Become Magic Wands! Catching a \u201cGiant Wave\u201d with a Bicycle Rope and Rubber Hose","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670821\u65e5","format":false,"excerpt":"I am Ken Kuwako, your Science Trainer. Every day i\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\/2015\/09\/IMG_6566.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/09\/IMG_6566.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/09\/IMG_6566.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/09\/IMG_6566.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/09\/IMG_6566.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/09\/IMG_6566.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":57093,"url":"https:\/\/phys-edu.net\/wp\/?p=57093&lang=en","url_meta":{"origin":57885,"position":2},"title":"Like Magic! 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Every\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\/2019\/08\/IMG_0268.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/08\/IMG_0268.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/08\/IMG_0268.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/08\/IMG_0268.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":54798,"url":"https:\/\/phys-edu.net\/wp\/?p=54798&lang=en","url_meta":{"origin":57885,"position":3},"title":"Your Pocket Lab: Unlocking Physics Secrets with the Smartphone Sensors You Already Own","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670822\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\/2015\/10\/4.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/4.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/4.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/4.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":55834,"url":"https:\/\/phys-edu.net\/wp\/?p=55834&lang=en","url_meta":{"origin":57885,"position":4},"title":"The Secret Science of Sway: How Danish Mobiles Nail the &#8220;Equilibrium of Moments&#8221;","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u670813\u65e5","format":false,"excerpt":"I'm Ken Kuwako, a Science Trainer. 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\/2016\/03\/1e9d416cbfded48e496eb55ddd0e3334.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/03\/1e9d416cbfded48e496eb55ddd0e3334.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/03\/1e9d416cbfded48e496eb55ddd0e3334.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":57218,"url":"https:\/\/phys-edu.net\/wp\/?p=57218&lang=en","url_meta":{"origin":57885,"position":5},"title":"See the Hidden Shapes of Sound! Exploring Resonance with a Tablet and Water (Air Column Resonance Experiment)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7412\u670813\u65e5","format":false,"excerpt":"Hello, this is Ken Kuwako, your Science Trainer. W\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\/2017\/01\/feeb7836754a34f6129295a1dddc58cc.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/57885","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=57885"}],"version-history":[{"count":0,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/57885\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/57890"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=57885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=57885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=57885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}