{"id":60065,"date":"2026-02-05T05:14:20","date_gmt":"2026-02-04T20:14:20","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=60065"},"modified":"2026-02-05T05:14:20","modified_gmt":"2026-02-04T20:14:20","slug":"from-circles-to-waves-exploring-the-mysterious-beauty-of-sine-waves-with-scratch-physics-math-learning-tool","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=60065&lang=en","title":{"rendered":"From Circles to Waves? Exploring the Mysterious Beauty of Sine Waves with Scratch (Physics &#038; Math Learning Tool)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I am Ken Kuwako, a Science Trainer. Every day is an experiment.<\/strong><\/span><\/p>\n<p>Circles and Waves. When you hear these two words, what shapes do you imagine?<\/p>\n<p>One might be the looping silhouette of a Ferris wheel, while the other is a rhythmic wall of water rolling across the ocean. At first glance, they seem like entirely different creatures. However, in the worlds of science and mathematics, they are actually inseparable <b>twins<\/b>.<\/p>\n<p>In this post, I will introduce a self-made digital teaching tool that lets you intuitively understand the mysterious connection of how a swirl turns into a ripple. Even if you feel a bit intimidated by physics or math, just watching the visuals will make you say, &#8220;Aha! I get it!&#8221;<\/p>\n<h3>Visualizing the Moment a Swirl Becomes a Wave<\/h3>\n<p>In a physics class, explaining circular motion or sine waves using only words and formulas is, quite frankly, an exhausting task. Abstract concepts are notoriously difficult to build solely inside the mind. To solve this, I used <b>Pyonkee<\/b>\u2014the iPad version of the Scratch app\u2014to create a simulation where anyone can understand the mechanism at a glance.<\/p>\n<p>The tool is designed to be projected onto a chalkboard so the whole class can discuss questions like, &#8220;How is this ball moving right now?&#8221; It is flexible enough for a teacher to <b>slow down the motion<\/b> or <b>reset mid-way<\/b> to match the flow of the lesson.<\/p>\n<p>When you view circular motion from the side as a shadow, it reveals a pattern of regular up-and-down movement known as Simple Harmonic Motion. First, take a look at this video capturing that phenomenon.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u5186\u904b\u52d5\u306e\u5f71\u3068\u5358\u632f\u52d5\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u6559\u6750\uff08\u6851\u5b50\u7814\uff09\" width=\"1140\" height=\"855\" src=\"https:\/\/www.youtube.com\/embed\/ZeC47dzpvPg?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>At first, it looks like a simple ball spinning in a circle&#8230;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-31700 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/66749246be6e7ff6773e13514e4d15f1.png\" alt=\"\" width=\"509\" height=\"385\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/66749246be6e7ff6773e13514e4d15f1.png 952w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/66749246be6e7ff6773e13514e4d15f1-300x227.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/66749246be6e7ff6773e13514e4d15f1-768x581.png 768w\" sizes=\"auto, (max-width: 509px) 100vw, 509px\" \/><\/p>\n<p>But when you flip the light switch in the simulation, a shadow is cast on the wall. Suddenly, the circular motion transforms into an oscillating vertical wobble.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-31699 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/697bed8c0970ca1dd518e618ad5f9f27.png\" alt=\"\" width=\"457\" height=\"344\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/697bed8c0970ca1dd518e618ad5f9f27.png 946w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/697bed8c0970ca1dd518e618ad5f9f27-300x226.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/07\/697bed8c0970ca1dd518e618ad5f9f27-768x578.png 768w\" sizes=\"auto, (max-width: 457px) 100vw, 457px\" \/><\/p>\n<p>On the screen, the <b>black arrow indicates velocity<\/b>, while the <b>red arrow shows acceleration<\/b>. Since the speed can be adjusted with a single button, you can observe closely while asking, &#8220;Where is the ball moving the fastest?&#8221; or &#8220;Is there a moment where the movement stops?&#8221; By using an electronic blackboard, you can draw values like period or angular velocity directly over the motion, helping your mental image grow even clearer.<\/p>\n<p>Feel free to try it out for yourself here: <a href=\"https:\/\/scratch.mit.edu\/projects\/235282757\">https:\/\/scratch.mit.edu\/projects\/235282757<\/a><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/scratch.mit.edu\/projects\/235282757\/embed\" width=\"485\" height=\"402\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>Here are the accompanying materials:<\/p>\n<p><b>Displacement (Change in Position)<\/b><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33708\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/654ddcc3e0421ca24773709f47dc11c3.jpg\" alt=\"\" width=\"536\" height=\"223\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/654ddcc3e0421ca24773709f47dc11c3.jpg 850w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/654ddcc3e0421ca24773709f47dc11c3-300x125.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/654ddcc3e0421ca24773709f47dc11c3-768x320.jpg 768w\" sizes=\"auto, (max-width: 536px) 100vw, 536px\" \/><\/p>\n<p><b>Velocity<\/b><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33709\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/d5deeb5e7afca463b66071f9886f6d37.jpg\" alt=\"\" width=\"500\" height=\"215\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/d5deeb5e7afca463b66071f9886f6d37.jpg 856w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/d5deeb5e7afca463b66071f9886f6d37-300x129.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/d5deeb5e7afca463b66071f9886f6d37-768x330.jpg 768w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><b>Acceleration<\/b><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33710\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/7762e233a0475ff7abd6ed5c3b09c9e9.jpg\" alt=\"\" width=\"499\" height=\"218\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/7762e233a0475ff7abd6ed5c3b09c9e9.jpg 870w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/7762e233a0475ff7abd6ed5c3b09c9e9-300x131.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/09\/7762e233a0475ff7abd6ed5c3b09c9e9-768x335.jpg 768w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/p>\n<p>Next, I\u2019ll show you a tool that demonstrates how circular motion draws a beautiful wave pattern\u2014a sine wave.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/scratch.mit.edu\/projects\/206995993\/\">Click here to use it<\/a>.<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"\/\/scratch.mit.edu\/projects\/embed\/206995993\/?autostart=false\" width=\"485\" height=\"402\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" title=\"\u5186\u904b\u52d5\u3068\u6b63\u5f26\u6ce2\u306e\u95a2\u4fc2\u304c\u3088\u304f\u308f\u304b\u308b\uff01\u30d4\u30e7\u30f3\u30ad\u30fc\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\" width=\"1140\" height=\"855\" src=\"https:\/\/www.youtube.com\/embed\/P6zZnfVvhdQ?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 Three Colored Balls: Unmasking the Identity of Motion<\/h3>\n<p>In this simulation, three balls with distinct personalities work together to reveal the true nature of the movement.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-31108 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/c32a538c643eb4ca0ab8634af0d69003-300x224.png\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/c32a538c643eb4ca0ab8634af0d69003-300x224.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/c32a538c643eb4ca0ab8634af0d69003-768x574.png 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/c32a538c643eb4ca0ab8634af0d69003.png 940w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><b>The Orange Ball<\/b>: It\u2019s in charge of <b>Uniform Circular Motion<\/b>, spinning at a constant speed on the left. It is the source of all the action.<\/p>\n<p><b>The Green Ball<\/b>: It faithfully follows only the height of the orange ball, demonstrating <b>Simple Harmonic Motion<\/b>. It is essentially the shadow of the circular motion.<\/p>\n<p><b>The Blue Ball<\/b>: By adding the passage of time (horizontal movement) to this vertical oscillation, it draws a beautiful <b>Sine Wave (y-t graph)<\/b>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-31109 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/cc9d543eadb4e10bbe0677f41ac721ad-300x217.png\" alt=\"\" width=\"300\" height=\"217\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/cc9d543eadb4e10bbe0677f41ac721ad-300x217.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/cc9d543eadb4e10bbe0677f41ac721ad-768x556.png 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/03\/cc9d543eadb4e10bbe0677f41ac721ad.png 958w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>By watching this step-by-step, it becomes easy to understand that circular motion and waves are actually the same phenomenon viewed from different angles. It\u2019s not just a key to unlocking deep physics; it also helps you visualize what <b>trigonometric functions (sine and cosine)<\/b> actually represent in math.<\/p>\n<p><span style=\"font-size: 14px;\">Creating this tool required a lot of trial and error. Thinking about how to issue the right commands to get that perfect, natural movement felt a bit like <\/span><b style=\"font-size: 14px;\">kneading clay into a shape<\/b><span style=\"font-size: 14px;\">.<\/span><\/p>\n<p>My ultimate goal is not just for me to create these, but for <b>students themselves to express physical phenomena through programming<\/b>.<\/p>\n<p>Beyond just memorizing facts from a textbook, building the motion yourself, adjusting the values, and recreating the phenomenon\u2014that is the kind of hands-on knowledge you will never forget. I will continue to master Scratch and explore new forms of learning with all of you.<\/p>\n<h3>Inquiries and Requests<\/h3>\n<p>Let\u2019s make the wonders of science more accessible! I have compiled many fun experiments you can do at home, along with tips to make them successful. Feel free to search around! \u30fbMy book &#8220;Science Material Notebook&#8221; is now available. Details <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a>. \u30fbLearn more about the administrator, Ken Kuwako, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a>. \u30fbFor requests (writing, lectures, workshops, TV supervision, etc.), click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a>. <span class=\"s2\">\u30fbUpdates are posted on <a href=\"https:\/\/x.com\/kuwako\">X (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>The <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Material Channel<\/a> features ongoing experiment videos!<\/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 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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 am Ken Kuwako, a Science Trainer. Every day is an experiment. Circles and Waves. When you hear these two wor [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":31699,"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-60065","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\/2018\/07\/697bed8c0970ca1dd518e618ad5f9f27.png","jetpack-related-posts":[{"id":62255,"url":"https:\/\/phys-edu.net\/wp\/?p=62255&lang=en","url_meta":{"origin":60065,"position":0},"title":"Reveal the True Nature of Sound! 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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\/2019\/11\/e89f3f454d87a26d5e9e8212b0b70d63.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/11\/e89f3f454d87a26d5e9e8212b0b70d63.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/11\/e89f3f454d87a26d5e9e8212b0b70d63.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/11\/e89f3f454d87a26d5e9e8212b0b70d63.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/11\/e89f3f454d87a26d5e9e8212b0b70d63.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/11\/e89f3f454d87a26d5e9e8212b0b70d63.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":58744,"url":"https:\/\/phys-edu.net\/wp\/?p=58744&lang=en","url_meta":{"origin":60065,"position":1},"title":"A Secret Line on the Water! Discover Wave Magic Circles by Tossing Two Stones (Observing Wave Interference Patterns)","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670812\u65e5","format":false,"excerpt":"I am Ken Kuwako, your Science Trainer. To me, 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\/2024\/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%88-2026-01-12-5.27.57.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/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%88-2026-01-12-5.27.57.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/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%88-2026-01-12-5.27.57.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/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%88-2026-01-12-5.27.57.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/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%88-2026-01-12-5.27.57.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":62393,"url":"https:\/\/phys-edu.net\/wp\/?p=62393&lang=en","url_meta":{"origin":60065,"position":2},"title":"Master the Toughest Topic in Physics: Helical Motion! 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