{"id":62955,"date":"2026-05-02T05:28:43","date_gmt":"2026-05-01T20:28:43","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=62955"},"modified":"2026-05-02T05:28:43","modified_gmt":"2026-05-01T20:28:43","slug":"bye-bye-bulbs-ammeters-my-ultra-sleek-science-setup","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=62955&lang=en","title":{"rendered":"Bye-Bye Bulbs &#038; Ammeters! My Ultra-Sleek Science Setup."},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>This is Kuwako Lab, your science trainer\u2014where every day is an experiment.<\/strong><\/span><\/p>\n<p> <span style=\"font-size: 14px;\">Have you ever wondered, \u201cDoes electricity get used up as it flows?\u201d It\u2019s a simple question, but one that often trips up students in science class. When current passes through a resistor or a small light bulb, does it decrease? Or does it stay the same? In this lesson, as preparation for an experiment on <strong>Ohm\u2019s Law<\/strong>, we explore a hands-on activity to investigate the basic properties of electric current. This is a record from the fourth lesson in our electricity unit. If you\u2019d like to see how we got here, check out the earlier lessons below.<\/span> <\/p>\n<ul>\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=34839\">Pencil Circuit<\/a> Lesson 1<\/li>\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=62695\">How to Draw Circuit Diagrams<\/a> Lesson 2<\/li>\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=26658\">How to Use an Ammeter<\/a> Lesson 3<\/li>\n<\/ul>\n<h3>Let\u2019s Test It with a Light Bulb! Battery and Circuit Experiment<\/h3>\n<p> In this fourth lesson, we built a simple circuit using a familiar combination: <strong>a battery and a small light bulb<\/strong>. By changing the number of batteries, we adjusted the voltage and measured the current before and after the bulb using an ammeter. The key question: \u201cDoes the current change as it passes through the bulb?\u201d <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-62945 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.01.jpeg\" alt=\"\" width=\"661\" height=\"200\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.01.jpeg 1508w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.01-300x91.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.01-1024x310.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.01-768x232.jpeg 768w\" sizes=\"auto, (max-width: 661px) 100vw, 661px\" \/><\/p>\n<p>Before experimenting, we made predictions. Let\u2019s call the current before the bulb I1 and after the bulb I2. About two-thirds of the class predicted that I1 would be greater than I2, reasoning that the bulb \u201cuses up\u201d electricity. About one-third thought I1 and I2 would be equal, comparing it to blood flow\u2014something that continues steadily through the body. A few students even suggested I2 might be larger, recalling that current direction can be counterintuitive.<\/p>\n<p>This year, we introduced a compact ammeter called the <a href=\"https:\/\/amzn.to\/48CLcAC\">Petit Meter<\/a>. It made our circuits much cleaner and easier to read\u2014what a difference!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-62943 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.32.jpeg\" alt=\"\" width=\"555\" height=\"451\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.32.jpeg 1216w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.32-300x244.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.32-1024x832.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.32-768x624.jpeg 768w\" sizes=\"auto, (max-width: 555px) 100vw, 555px\" \/><\/p>\n<p>Here\u2019s what happened when we actually ran the experiment:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-62946 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.10.jpeg\" alt=\"\" width=\"593\" height=\"231\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.10.jpeg 1474w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.10-300x117.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.10-1024x399.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.07.10-768x299.jpeg 768w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/p>\n<p><strong>The current does not change before and after the light bulb.<\/strong> Electricity isn\u2019t \u201cused up\u201d and disappearing. Instead, energy is being converted into light and heat, while the electric charges (electrons) keep flowing through the circuit continuously. It\u2019s just like water flowing through a pipe\u2014it doesn\u2019t vanish halfway through.<\/p>\n<p>We repeated the same experiment, this time replacing the bulb with a <strong>resistor<\/strong>. The result? Exactly the same. <strong>The current remained constant before and after the resistor.<\/strong> This property is sometimes described as the conservation of current. In a series circuit, current is the same everywhere\u2014an essential foundation for understanding Ohm\u2019s Law.<\/p>\n<h3>From Light Bulbs to Resistors\u2014How Tools Shape Experiments<\/h3>\n<p> Light bulbs are intuitive and easy to use, but they have a drawback: <strong>they burn out if the voltage gets too high<\/strong>. That makes them less suitable for repeated experiments with varying voltages. So from here on, we\u2019ll switch to more reliable <strong>resistors<\/strong>. Time to say goodbye to light bulbs! <\/p>\n<h3>Control Voltage Freely with the Power Supply (Petit-X)<\/h3>\n<p> Another major upgrade is the introduction of the <strong>Petit-X power supply<\/strong>.<\/h3>\n<p style=\"text-align: center;\">Petit-X Power Supply<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-62949 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-02-4.55.09.jpeg\" alt=\"\" width=\"311\" height=\"235\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-02-4.55.09.jpeg 532w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-02-4.55.09-300x227.jpeg 300w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"OO2iRq3hKt\"><p><a href=\"https:\/\/www.rika.com\/petit-x\">\u96fb\u6e90\u88c5\u7f6e Petit-X\uff08\u30d7\u30c1\u30a8\u30c3\u30af\u30b9\uff09\u30b7\u30ea\u30fc\u30ba<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u96fb\u6e90\u88c5\u7f6e Petit-X\uff08\u30d7\u30c1\u30a8\u30c3\u30af\u30b9\uff09\u30b7\u30ea\u30fc\u30ba&#8221; &#8212; \u682a\u5f0f\u4f1a\u793e\u30ca\u30ea\u30ab\u3000\u7406\u79d1\u30c9\u30c3\u30c8\u30b3\u30e0\" src=\"https:\/\/www.rika.com\/petit-x\/embed#?secret=QcClLDdIkW#?secret=OO2iRq3hKt\" data-secret=\"OO2iRq3hKt\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>With batteries, voltage can only be adjusted in 1.5V steps. But with a power supply, you can fine-tune the voltage freely. This allows us to plot smooth graphs showing the relationship between voltage and current, making the proportional beauty of Ohm\u2019s Law (Voltage = Current \u00d7 Resistance) clearly visible.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-62944 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00.jpeg\" alt=\"\" width=\"588\" height=\"433\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00.jpeg 1594w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00-300x221.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00-1024x754.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00-768x566.jpeg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00-1536x1131.jpeg 1536w\" sizes=\"auto, (max-width: 588px) 100vw, 588px\" \/>Using the Petit-X also keeps the entire circuit compact and tidy compared to large power supplies. It becomes much easier to see how everything is connected.<\/p>\n<p>When we ran the same 1.5V experiment using the Petit-X, we confirmed that the results matched those with batteries. Unlike batteries, which run out and need replacing, the Petit-X keeps going\u2014another reason to make the switch.<\/p>\n<p>Having the right tools improves both the accuracy of experiments and students\u2019 understanding. It\u2019s a perfect example of how the tools you use can transform the experiment itself.<\/p>\n<h3>Contact &#038; Requests<\/h3>\n<p> Let\u2019s bring the wonder of science closer to everyday life! This site shares fun, easy-to-follow science experiments you can try at home, along with helpful tips. Feel free to explore!<\/p>\n<p>\u30fbOur science idea collection is now available as a book. Learn more <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a><br \/>\n\u30fbAbout the author, Kuwako Lab: <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a><br \/>\n\u30fbFor requests (writing, lectures, workshops, TV supervision, appearances, etc.): <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a><br \/>\n<span class=\"s2\">\u30fbGet updates on new articles via <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!<\/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=\"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>This is Kuwako Lab, your science trainer\u2014where every day is an experiment. Have you ever wondered, \u201cDoes elect [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":62944,"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-62955","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\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-01-11.08.00.jpeg","jetpack-related-posts":[{"id":62813,"url":"https:\/\/phys-edu.net\/wp\/?p=62813&lang=en","url_meta":{"origin":62955,"position":0},"title":"The Lunch Box Mystery: The Moment Scientific Laws Are Born.","author":"\u6851\u5b50 \u7814","date":"2026\u5e744\u670827\u65e5","format":false,"excerpt":"I\u2019m Kuwako Ken, a science trainer\u2014every 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\/2017\/07\/9ac0f662de5f7e1315318d4676ca2013.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/07\/9ac0f662de5f7e1315318d4676ca2013.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/07\/9ac0f662de5f7e1315318d4676ca2013.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2017\/07\/9ac0f662de5f7e1315318d4676ca2013.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":62707,"url":"https:\/\/phys-edu.net\/wp\/?p=62707&lang=en","url_meta":{"origin":62955,"position":1},"title":"Shocking Truth: Can Humans Conduct Electricity? Let\u2019s Try the Human Circuit Experiment! [Tamesu-kun]","author":"\u6851\u5b50 \u7814","date":"2026\u5e744\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\/2020\/03\/3c79d3032be1ac0cb7eb6766ca21a5da.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3c79d3032be1ac0cb7eb6766ca21a5da.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3c79d3032be1ac0cb7eb6766ca21a5da.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3c79d3032be1ac0cb7eb6766ca21a5da.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":55174,"url":"https:\/\/phys-edu.net\/wp\/?p=55174&lang=en","url_meta":{"origin":62955,"position":2},"title":"The Coil&#8217;s Secret: How to Catch the &#8220;Hold On a Minute!&#8221; Lag of Self-Induction","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670830\u65e5","format":false,"excerpt":"I'm Ken Kuwako, Science Trainer. Every Day is an E\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\/11\/eb22bf7a906b7f73af3d68cd620dade71.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/11\/eb22bf7a906b7f73af3d68cd620dade71.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/11\/eb22bf7a906b7f73af3d68cd620dade71.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/11\/eb22bf7a906b7f73af3d68cd620dade71.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/11\/eb22bf7a906b7f73af3d68cd620dade71.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":53921,"url":"https:\/\/phys-edu.net\/wp\/?p=53921&lang=en","url_meta":{"origin":62955,"position":3},"title":"Unleash Your Inner Superhero: Become the &#8216;Electric Human&#8217; and Light Up a Bulb!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67086\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\/03\/86d9225729b234879c7000b3790126a6.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/03\/86d9225729b234879c7000b3790126a6.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/03\/86d9225729b234879c7000b3790126a6.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/03\/86d9225729b234879c7000b3790126a6.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":58936,"url":"https:\/\/phys-edu.net\/wp\/?p=58936&lang=en","url_meta":{"origin":62955,"position":4},"title":"Two Sides of the Same Coin! Can a Motor Light a Bulb? 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