{"id":63286,"date":"2026-05-11T04:31:08","date_gmt":"2026-05-10T19:31:08","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=63286"},"modified":"2026-05-11T04:31:08","modified_gmt":"2026-05-10T19:31:08","slug":"why-does-a-stretched-balloon-get-hot-a-mind-blowing-home-temperature-experiment-using-thermography","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=63286&lang=en","title":{"rendered":"Why Does a Stretched Balloon Get Hot!? A Mind-Blowing Home Temperature Experiment Using Thermography"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I\u2019m science trainer Ken Kuwako. Every day is an experiment.<\/strong><\/span><\/p>\n<p style=\"text-align: left;\">Stretch a balloon, and it heats up. Let it snap back, and suddenly it feels cold. It sounds like a simple little trick, but this tiny experiment is actually tied directly to some of the deepest ideas in physics. Today, let\u2019s uncover the fascinating connection between heat and energy with an experiment you can try right now at home.<\/p>\n<h3>Try Stretching a Balloon<\/h3>\n<p style=\"text-align: left;\">Here\u2019s a super easy experiment. Grab a balloon, press it lightly against your face, and then <b>pull the balloon quickly while keeping it touching your skin.<\/b><\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" class=\"lazy alignnone wp-image-24843 aligncenter lazy-loaded\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/a14ff09b9878e3b92feb457248af7ae1.jpg\" sizes=\"auto, (max-width: 411px) 100vw, 411px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/a14ff09b9878e3b92feb457248af7ae1.jpg 431w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/a14ff09b9878e3b92feb457248af7ae1-300x287.jpg 300w\" alt=\"Screenshot 2016-04-27 19.19.04\" width=\"218\" height=\"208\" data-lazy-type=\"image\" data-lazy-src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/a14ff09b9878e3b92feb457248af7ae1.jpg\" data-lazy-srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/a14ff09b9878e3b92feb457248af7ae1.jpg 431w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2016\/04\/a14ff09b9878e3b92feb457248af7ae1-300x287.jpg 300w\" data-lazy-sizes=\"(max-width: 411px) 100vw, 411px\" \/> <\/p>\n<p style=\"text-align: left;\">Did you notice anything? <b>Did the balloon feel warm?<\/b> Now keep the balloon stretched for a moment, let it return to its original shape, and touch it to your face again. This time, it feels cool. Take a look at this thermal camera video showing the effect in action.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u30ca\u30f3\u30b8\u30e3\u30b3\u30ea\u30e3\uff01\u98a8\u8239\u3092\u9854\u306b\u3064\u3051\u305f\u307e\u307e\u5f15\u3063\u5f35\u308b\u3068\uff01\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/hj4rK7TR8Rk?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>The Thermal Camera Makes It Obvious<\/h3>\n<p>Seen through a thermal camera, the temperature change is impossible to miss.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-33301 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1734.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1734.jpg 400w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1734-300x225.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-33298 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1751.jpg\" alt=\"\" width=\"500\" height=\"375\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1751.jpg 500w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1751-300x225.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>When stretched, the balloon\u2019s surface temperature rises to about <b>40\u00b0C (104\u00b0F)<\/b>. But when the stretched rubber snaps back:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-33300 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1749.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1749.jpg 400w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1749-300x225.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-33299 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1752.jpg\" alt=\"\" width=\"500\" height=\"375\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1752.jpg 500w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/05\/IMG_1752-300x225.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>the temperature drops to around <b>27\u00b0C (80.6\u00b0F)<\/b>, about 1\u00b0C cooler than the room temperature of roughly 28\u00b0C. Pretty amazing that a single balloon can swing in temperature so dramatically, isn\u2019t it?<\/p>\n<p>For these measurements, I used the thermal camera below. It\u2019s compact, easy to use, and surprisingly handy.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-63123 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-07-4.09.55.jpeg\" sizes=\"auto, (max-width: 321px) 100vw, 321px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-07-4.09.55.jpeg 508w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-07-4.09.55-300x233.jpeg 300w\" alt=\"\" width=\"321\" height=\"249\" \/> <\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/amzn.to\/4dEBDEu\">FLIR one PRO<\/a> (Amazon)<\/p>\n<p style=\"text-align: center;\">It\u2019s also available on Rakuten \u2192 <a href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/28de88df.34f59940.28de88e0.b338631c\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Fhaikanshop%2F1025747%2F&amp;link_type=text&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJ0ZXh0Iiwic2l6ZSI6IjQwMHg0MDAiLCJuYW0iOjEsIm5hbXAiOiJyaWdodCIsImNvbSI6MSwiY29tcCI6ImRvd24iLCJwcmljZSI6MSwiYm9yIjoxLCJjb2wiOjEsImJidG4iOjEsInByb2QiOjAsImFtcCI6ZmFsc2V9\" target=\"_blank\" rel=\"nofollow sponsored noopener\">FLIR ONE Pro<\/a><\/p>\n<h3>Why Does It Get Hot \u2014 and Then Cold?<\/h3>\n<p>There\u2019s a real scientific reason behind this strange effect. When you stretch the balloon\u2019s rubber, the <b>mechanical energy you apply is converted into heat energy<\/b>. It\u2019s similar to how the valve area of a bicycle tire gets warm after pumping in air \u2014 a process related to what physicists call adiabatic compression.<\/p>\n<p>But when the stretched rubber suddenly contracts, the opposite happens. The rubber absorbs heat from its surroundings as it snaps back.<\/p>\n<p>This is similar to adiabatic expansion, which causes the temperature to drop. In fact, this same principle is deeply connected to how refrigerators and air conditioners work. Inside those machines, a refrigerant repeatedly compresses and expands to move heat from one place to another.<\/p>\n<p>It\u2019s pretty incredible to think that a simple balloon experiment on your kitchen table relies on the exact same physics as modern cooling technology.<\/p>\n<h3>The Strange Nature of Rubber: Heat Makes It Shrink!?<\/h3>\n<p>Here\u2019s another surprising twist. Rubber behaves <b>completely differently from most metals and liquids.<\/b><\/p>\n<p>Most materials expand when heated. Rubber, however, tends to contract when it gets warmer. Why? Because the long molecular chains inside rubber curl up more tightly as temperature increases. Physicists call this phenomenon \u201centropic elasticity.\u201d<\/p>\n<p>For such an everyday material, rubber hides a remarkably deep world of physics inside it.<\/p>\n<p>Give this experiment a try for yourself. With just one balloon, you can become a scientist today.<\/p>\n<h3>Contact &#038; Requests<\/h3>\n<p>Bringing the wonder of science closer to everyday life! I share fun science experiments you can do at home, along with easy-to-understand explanations and tips. Feel free to explore more!<\/p>\n<p>\u30fbThe \u201cScience Notebook\u201d series has been published as a book. Learn more <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a><br \/>\n\u30fbAbout science trainer Ken Kuwako <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a><br \/>\n\u30fbFor requests such as writing, lectures, science workshops, TV supervision, or appearances, click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a><br \/>\n<span class=\"s2\">\u30fbFollow updates on new articles on <a href=\"https:\/\/x.com\/kuwako\">X<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Idea Channel<\/a> features experiment videos as well!<\/p>\n<p><strong>Suggested Title:<\/strong><br \/> \u201cThe Balloon That Heats Up and Cools Down: A Tiny Experiment With Big Physics\u201d<\/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>I\u2019m science trainer Ken Kuwako. Every day is an experiment. Stretch a balloon, and it heats up. Let it snap ba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":33299,"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-63286","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\/2019\/05\/IMG_1752.jpg","jetpack-related-posts":[{"id":56304,"url":"https:\/\/phys-edu.net\/wp\/?p=56304&lang=en","url_meta":{"origin":63286,"position":0},"title":"Can You Touch Sound? The Simple Home Experiments That Prove Sound Is Energy","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u670824\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\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":55439,"url":"https:\/\/phys-edu.net\/wp\/?p=55439&lang=en","url_meta":{"origin":63286,"position":1},"title":"The Love-Hate Relationship of Electrons: Make Your Hair Float with Just a Balloon!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7411\u67085\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\/11\/%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%88-2025-11-05-4.47.47.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/11\/%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%88-2025-11-05-4.47.47.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/11\/%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%88-2025-11-05-4.47.47.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/11\/%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%88-2025-11-05-4.47.47.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/11\/%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%88-2025-11-05-4.47.47.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":54241,"url":"https:\/\/phys-edu.net\/wp\/?p=54241&lang=en","url_meta":{"origin":63286,"position":2},"title":"Static Magic: Make a Butterfly Hover in Mid-Air with Just a Balloon!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670812\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\/2020\/03\/9288ae82a41dcc1b493ea206aa83a6a9.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/9288ae82a41dcc1b493ea206aa83a6a9.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/9288ae82a41dcc1b493ea206aa83a6a9.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":54555,"url":"https:\/\/phys-edu.net\/wp\/?p=54555&lang=en","url_meta":{"origin":63286,"position":3},"title":"It\u2019s Not Magic! The Science Behind the Balloon That Bends Water (Static Electricity Experiment)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670818\u65e5","format":false,"excerpt":"Hi, I'm Ken Kuwako, your Science Trainer. 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Every da\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\/02\/906564686d1f2ab361fe6c370421dc7d.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/906564686d1f2ab361fe6c370421dc7d.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/906564686d1f2ab361fe6c370421dc7d.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":53673,"url":"https:\/\/phys-edu.net\/wp\/?p=53673&lang=en","url_meta":{"origin":63286,"position":5},"title":"The Invisible Force: How to Make Static Electricity Dance with Just a Balloon!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67083\u65e5","format":false,"excerpt":"Hi, I'm Ken Kuwako, your Science Trainer. 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