{"id":66784,"date":"2026-08-23T05:01:53","date_gmt":"2026-08-22T20:01:53","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=66784"},"modified":"2026-08-23T05:01:53","modified_gmt":"2026-08-22T20:01:53","slug":"we-measured-every-second-of-splash-mountains-altitude-and-acceleration-disneyland-physics","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=66784&lang=en","title":{"rendered":"We Measured Every Second of Splash Mountain&#8217;s Altitude and Acceleration! ~Disneyland Physics~"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I&#8217;m Ken Kuwako, your Science Trainer. Every day is an experiment.<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14px;\">The other day, I was scheduled to accompany my students on a school trip to <\/span><b style=\"font-size: 14px;\">Tokyo Disneyland<\/b><span style=\"font-size: 14px;\">. I&#8217;ve always thought that <\/span><b style=\"font-size: 14px;\">Disneyland is a treasure trove of teaching materials<\/b><span style=\"font-size: 14px;\">, so this was the perfect opportunity. Since I was going anyway, I decided to turn the roller coasters into a science lesson and borrowed a GoDirect <\/span><b style=\"font-size: 14px;\">accelerometer<\/b><span style=\"font-size: 14px;\"> from Narika, an educational science equipment company.<\/span><\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39085\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968.jpg\" alt=\"\" width=\"392\" height=\"201\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968.jpg 2235w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968-300x154.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968-1024x525.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968-768x393.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968-1536x787.jpg 1536w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/IMG_3968-2048x1049.jpg 2048w\" sizes=\"auto, (max-width: 392px) 100vw, 392px\" \/><\/p>\n<p style=\"text-align: center;\">This is the accelerometer. Besides acceleration, it can also measure altitude. It can be connected to an iPad for data collection.<\/p>\n<p>I slipped it into my pocket and collected altitude and acceleration data while riding Splash Mountain, Big Thunder Mountain, and Space Mountain. There was just one small problem: <b>I&#8217;m not a fan of roller coasters<\/b>, and it had been decades since I&#8217;d last ridden one. I was scared, so I recruited another teacher to ride with me.<br \/>\nExperiments don&#8217;t always work on the first try\u2014that&#8217;s practically part of the fun. Unfortunately, my measurements didn&#8217;t work out the first time, so <b>we ended up riding each attraction twice. (Sigh.) My colleague kindly went along with me, too.<\/b> Luckily, because Tokyo Disneyland was operating with reduced capacity due to COVID-19 at the time, we were able to get on each attraction in about 15 minutes. That was a pleasant surprise, especially since I had been prepared to wait two hours!<\/p>\n<h3>Let&#8217;s start with the Splash Mountain data<\/h3>\n<p>Let&#8217;s begin with the data from Splash Mountain. The upper graph shows acceleration along the x-axis (the direction of travel), while the lower graph shows altitude.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39078\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/624b6aa6902e474c8f85480e979057b4.jpg\" alt=\"\" width=\"523\" height=\"797\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/624b6aa6902e474c8f85480e979057b4.jpg 1032w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/624b6aa6902e474c8f85480e979057b4-197x300.jpg 197w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/624b6aa6902e474c8f85480e979057b4-671x1024.jpg 671w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/624b6aa6902e474c8f85480e979057b4-768x1171.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/624b6aa6902e474c8f85480e979057b4-1007x1536.jpg 1007w\" sizes=\"auto, (max-width: 523px) 100vw, 523px\" \/><\/p>\n<p>I&#8217;ll share the data with you later. Looking at the altitude data as a whole, we can see that Splash Mountain has four drops\u2014and you can definitely feel them while riding. The ride lasts about six minutes, which is remarkably long for a roller coaster. Here&#8217;s a video released by someone who actually rode the attraction. It might be fun to watch it while referring to the graph above.<\/p>\n<p><iframe loading=\"lazy\" title=\"\ud83d\udd34\u6771\u4eac\u30c7\u30a3\u30ba\u30cb\u30fc\u30e9\u30f3\u30c9 \u30b9\u30d7\u30e9\u30c3\u30b7\u30e5\u30de\u30a6\u30f3\u30c6\u30f3\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/AmPPm3O-mWA?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>Even this data alone tells us quite a lot. According to the official guidebook, <a href=\"https:\/\/phys-edu.net\/wp\/?p=231\">the maximum drop is 16 m<\/a>, and the actual measurement came out at 16.2 m\u2014almost exactly the same! Looks like the altimeter was doing its job.<br \/>\nThe total height above the loading area, rather than the drop height, is 17.1 m. And yes, that is pretty intimidating.<br \/>\nUsing only these data and the conservation of mechanical energy, we can calculate the maximum speed. <a href=\"https:\/\/phys-edu.net\/wp\/?p=231\">The theoretical value comes out to about 64 km\/h (see here for the calculation).<\/a><br \/>\nThe official website lists the speed as 62 km\/h, probably because of factors such as friction. The fact that the theoretical calculation and the official figure came out so close was one of those moments when I couldn&#8217;t help saying, &#8220;Wow!&#8221; while doing the math.<\/p>\n<h3>An unexpected pitfall revealed by integrating the acceleration data<\/h3>\n<p>I also analyzed the acceleration data during the big finale\u2014the final drop down the waterfall\u2014and calculated the speed by integrating the acceleration. The result is shown in the graph below.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39074 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/ee9e8e4ec5c7ea92421a77de86a2ec70.jpg\" alt=\"\" width=\"492\" height=\"304\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/ee9e8e4ec5c7ea92421a77de86a2ec70.jpg 1198w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/ee9e8e4ec5c7ea92421a77de86a2ec70-300x185.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/ee9e8e4ec5c7ea92421a77de86a2ec70-1024x633.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/ee9e8e4ec5c7ea92421a77de86a2ec70-768x474.jpg 768w\" sizes=\"auto, (max-width: 492px) 100vw, 492px\" \/><\/p>\n<p>The red line shows altitude [m], the yellow line shows the measured acceleration [m\/s2], and the blue line shows the speed [m\/s] obtained by integrating the acceleration data.<br \/>\nWhen I integrated the acceleration data to calculate the speed, the maximum came out to just 8 m\/s (28 km\/h). But when we calculate the maximum speed from the drop height using conservation of mechanical energy, the theoretical value is about 63 km\/h. That&#8217;s quite a substantial difference from the actual speed.<br \/>\nThe most likely reason is that <b>the sensor only measured acceleration along the x-axis<\/b>. <b>I really wish I&#8217;d measured the acceleration along the y- and z-axes as well and combined all three afterward. (Crying.) I&#8217;ll have to try again someday.<\/b><br \/>\nIn reality, while the ride is falling, the vehicle\u2014and our bodies\u2014experience complicated accelerations not only forward and backward, but also vertically and sideways. This was a perfect hands-on reminder that measuring motion in just one direction doesn&#8217;t give you the full picture.<\/p>\n<h3>Were we briefly in a &#8220;weightless&#8221; state!?<\/h3>\n<p>One particularly interesting finding was that the sensor recorded an acceleration of 10 m\/s\u00b2 at the point where the altitude was dropping rapidly. When I calculated the vertical acceleration from the altitude data as well, I got a value of around 12 m\/s\u00b2. So, at least when it comes to vertical acceleration, could it possibly have exceeded the acceleration due to gravity (9.8 m\/s\u00b2)?<br \/>\nIn any case, based on the data we have, <strong>it looks as though Splash Mountain briefly approaches a state of weightlessness, with riders floating for about 0.1 seconds.<\/strong> Some of you may have experienced that light, floating sensation when an elevator suddenly drops. The same phenomenon is happening during the roller coaster&#8217;s descent\u2014only much more intensely.<br \/>\nThe data also show that the ride brakes very suddenly, probably because of the water. This is a feature that you don&#8217;t see on other roller coasters, and it seems likely that the strong resistance of the water acts as the boat hits the water&#8217;s surface.<br \/>\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=39227\">For an analysis of Big Thunder Mountain, check out this article. We discovered all sorts of facts that you won&#8217;t find in a guidebook.<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"BXvGWBbcRa\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=39227\">\u7406\u79d1\u6559\u5e2b\u304c\u7d76\u53eb\u30de\u30b7\u30f3\u306b\u30bb\u30f3\u30b5\u30fc\u3092\u4ed5\u8fbc\u3093\u3067\u307f\u305f ~\u30d3\u30c3\u30af\u30b5\u30f3\u30c0\u30fc\u30de\u30a6\u30f3\u30c6\u30f3\u7de8~<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u7406\u79d1\u6559\u5e2b\u304c\u7d76\u53eb\u30de\u30b7\u30f3\u306b\u30bb\u30f3\u30b5\u30fc\u3092\u4ed5\u8fbc\u3093\u3067\u307f\u305f ~\u30d3\u30c3\u30af\u30b5\u30f3\u30c0\u30fc\u30de\u30a6\u30f3\u30c6\u30f3\u7de8~\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=39227&amp;embed=true#?secret=LnbLSeRmT6#?secret=BXvGWBbcRa\" data-secret=\"BXvGWBbcRa\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>I&#8217;m sharing the data\u2014and promising a rematch next time!<\/h3>\n<p>I&#8217;m also making the original data from both Splash Mountain and Big Thunder Mountain available here.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.dropbox.com\/sh\/ks1q9ctm9meo2zb\/AADQqsIqNC4g3ENnpWwEuJZua?dl=0\">GoDirect data<\/a><\/p>\n<p style=\"text-align: center;\">Data exported to a spreadsheet<\/p>\n<p><a href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1oj_VH7XUh0qkqI_n-xil9L383DMtSjiYBgBwkSMrr0c\/edit?usp=sharing\">Original altitude and acceleration data for Splash Mountain<\/a><br \/>\n<a href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1avvXRmorXKPqqzGJKx4lES1JnlF_lcV9OSqyu49GHeA\/edit?usp=sharing\">Original altitude and acceleration data for Big Thunder Mountain<\/a><br \/>\nAnalyzed data<br \/>\n<a href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1wuROYyPdmAnfPdmmWZtXbRg8SzrJW7g8MQ9-7zHzoJQ\/edit?usp=sharing\">Analyzed altitude and acceleration data for Big Thunder Mountain<\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1U_OXPBmEZrKXoQdsR8izFplgv2BAVY5Dc_PdRQaDA-w\/edit?usp=sharing\">Analyzed altitude and acceleration data for Splash Mountain<\/a><\/p>\n<p>For anyone who might be brave enough to take a GoDirect accelerometer onto a roller coaster in the future (is anyone really going to do that!?), here&#8217;s some useful information about the settings. I set the <b>sampling rate to record data every 0.1 seconds<\/b>. <b>The default setting is 0.02 seconds<\/b>, but I found that recording at such a high rate for a long period can sometimes cause errors.<br \/>\nYou also need to set the recording to stop manually. Otherwise, it will automatically stop after one minute. Because of these settings issues, we ended up riding each attraction twice&#8230; Since Splash Mountain takes about six minutes, even at a sampling interval of 0.1 seconds, you end up with around 6,000 data points.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39079\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/e7545f22eb67ea2a7315918d818869e4.jpg\" alt=\"\" width=\"545\" height=\"491\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/e7545f22eb67ea2a7315918d818869e4.jpg 822w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/e7545f22eb67ea2a7315918d818869e4-300x270.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/e7545f22eb67ea2a7315918d818869e4-768x691.jpg 768w\" sizes=\"auto, (max-width: 545px) 100vw, 545px\" \/><\/p>\n<p>And <b>if I ever get the chance to go again, I&#8217;d like to turn on the x-, y-, and z-axis acceleration sensors as well as the altitude sensor<\/b>.<br \/>\nIf we can record all three directions instead of just one, we&#8217;ll be able to see the true magnitude and direction of the forces acting on the body. I&#8217;m sure we&#8217;ll be able to solve some of the mysteries that remained unanswered this time.<br \/>\nI&#8217;ve also put together an explanation of how to calculate the theoretical maximum speed. Take a look here.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"86m4SAyp9w\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=231\">\u843d\u5dee16m\u306e\u6050\u6016\u3001\u7406\u79d1\u3067\u89e3\u660e\uff01\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5\u30de\u30a6\u30f3\u30c6\u30f3\u3092\u6570\u5f0f\u3067\u306e\u305e\u304f\u3010\u30c7\u30a3\u30ba\u30cb\u30fc\u30e9\u30f3\u30c9\u7269\u7406\u5b66\u3011<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u843d\u5dee16m\u306e\u6050\u6016\u3001\u7406\u79d1\u3067\u89e3\u660e\uff01\u30b9\u30d7\u30e9\u30c3\u30b7\u30e5\u30de\u30a6\u30f3\u30c6\u30f3\u3092\u6570\u5f0f\u3067\u306e\u305e\u304f\u3010\u30c7\u30a3\u30ba\u30cb\u30fc\u30e9\u30f3\u30c9\u7269\u7406\u5b66\u3011\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=231&amp;embed=true#?secret=EMSwHga4Ma#?secret=86m4SAyp9w\" data-secret=\"86m4SAyp9w\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>And why not try calculating the speeds of Splash Mountain and FUJIYAMA yourself?<\/p>\n<h3>Contact and inquiries<\/h3>\n<p>Bring the wonder and excitement of science a little closer to everyday life! I share fun science experiments you can do at home, along with easy-to-understand tips and explanations. Have a look around and see what you can discover!<br \/>\n\u30fbThe content from \u79d1\u5b66\u306e\u30cd\u30bf\u5e33 is now available as a book. For more information, <a href=\"https:\/\/amzn.to\/42PMCEL\">click here<\/a><br \/>\n\u30fbFor more information about Ken Kuwako, the creator of this site, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">click here<\/a><br \/>\n\u30fbFor inquiries and requests, including writing, lectures, science workshops, TV science supervision, and TV appearances, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">click here<\/a><br \/>\n<span class=\"s2\">\u30fbFollow <a href=\"https:\/\/x.com\/kuwako\">X<\/a> for the latest article updates!<\/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\">The \u79d1\u5b66\u306e\u30cd\u30bf channel<\/a> features videos of science experiments!<\/p>\n<h3><span style=\"color: #ff0000;\">NEW\u3000\u5206\u89e3\u554f\u984c\u96c6\u3000\u7406\u79d1<\/span><\/h3>\r\n<ul>\r\n \t<li>\uff17\u6708\uff12\uff11\u65e5\u767a\u58f2\uff01\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002\r\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone  wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a><\/li>\r\n<\/ul>\r\n<h3>\uff17\u30fb\uff18\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\">\u590f\u3067\u30d7\u30b7\u30e5\u30c3\u3068\u723d\u3084\u304b\u5b9f\u9a13\uff01<\/p>\r\n<img class=\"alignnone  wp-image-64964 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-30-4.31.58.jpeg\" alt=\"\" width=\"250\" height=\"310\" \/>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=206\">\u5c0f\u578b\u3067\u6301\u3061\u5e30\u308c\u308b\u3088\uff01\u30da\u30c3\u30c8\u30dc\u30c8\u30eb\u30ed\u30b1\u30c3\u30c8\u3092\u4f5c\u308d\u3046\uff01<\/a><\/p>\r\n\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 \t<li>\uff17\u6708\uff13\uff10\u65e5\uff08\u6c34\uff09\u79d1\u5b66\u76e3\u4fee\u300c<a href=\"https:\/\/www.fujitv.co.jp\/onesongfes\/\">TIF presents ONE SONG FES<\/a>\u300d\uff08\u30d5\u30b8\u30c6\u30ec\u30d3\uff09\u00a026:15~27:15<\/li>\r\n \t<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=64825\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n \t<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\r\n<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\" \/><\/strong><\/li>\r\n \t<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\r\n<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;\">\u3010\u65e5\u672c\u8a9e\u3011<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>\u3000\u3010\u82f1\u8a9e\u3011<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><\/p>\r\n\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<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 \t<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 \t<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 \t<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 \t<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 \t<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 \t<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>","protected":false},"excerpt":{"rendered":"<p>I&#8217;m Ken Kuwako, your Science Trainer. Every day is an experiment. The other day, I was scheduled to acco [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":39074,"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":"","jetpack_post_was_ever_published":false},"categories":[781],"tags":[],"class_list":["post-66784","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-en"],"jetpack-related-posts":[{"id":51883,"url":"https:\/\/phys-edu.net\/wp\/?p=51883&lang=en","url_meta":{"origin":66784,"position":0},"title":"Uncovering the Physics of Mermaid Lagoon: A DisneySea Adventure","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670810\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\/70422edfa369d782b1384f5db6e22b6b.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/70422edfa369d782b1384f5db6e22b6b.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2015\/10\/70422edfa369d782b1384f5db6e22b6b.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":54798,"url":"https:\/\/phys-edu.net\/wp\/?p=54798&lang=en","url_meta":{"origin":66784,"position":1},"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":51496,"url":"https:\/\/phys-edu.net\/wp\/?p=51496&lang=en","url_meta":{"origin":66784,"position":2},"title":"The Physics of Splash Mountain: Decoding a 16-Meter Terrifying Drop Through Science! \u3010Physics of Disneyland\u3011","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u67084\u65e5","format":false,"excerpt":"I'm Ken Kuwako, the 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\/2023\/10\/d81af24e207aa30be0c19eb93966a2fe.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/10\/d81af24e207aa30be0c19eb93966a2fe.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/10\/d81af24e207aa30be0c19eb93966a2fe.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/10\/d81af24e207aa30be0c19eb93966a2fe.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":52909,"url":"https:\/\/phys-edu.net\/wp\/?p=52909&lang=en","url_meta":{"origin":66784,"position":3},"title":"Science at Minnie\u2019s House!? The Magical Physics of the Volumatronics at Disneyland","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670823\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\/2025\/05\/d569ab47826e1ac376104e9818a70fac.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/d569ab47826e1ac376104e9818a70fac.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/d569ab47826e1ac376104e9818a70fac.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/d569ab47826e1ac376104e9818a70fac.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":66757,"url":"https:\/\/phys-edu.net\/wp\/?p=66757&lang=en","url_meta":{"origin":66784,"position":4},"title":"A Science Teacher Rigged a Roller Coaster with Sensors ~Big Thunder Mountain Edition~","author":"\u6851\u5b50 \u7814","date":"2026\u5e748\u670822\u65e5","format":false,"excerpt":"I\u2019m 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\/2022\/01\/074ca5961754141bfdd8bb8d0ccb083d-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":63141,"url":"https:\/\/phys-edu.net\/wp\/?p=63141&lang=en","url_meta":{"origin":66784,"position":5},"title":"Gravity Challenge: Do Feathers and Steel Balls Really Fall at the Same Speed?","author":"\u6851\u5b50 \u7814","date":"2026\u5e745\u67087\u65e5","format":false,"excerpt":"I\u2019m 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\/2018\/05\/df07526fd281a9622afd02d0e43e294a.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/05\/df07526fd281a9622afd02d0e43e294a.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/05\/df07526fd281a9622afd02d0e43e294a.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/05\/df07526fd281a9622afd02d0e43e294a.png?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/01\/ee9e8e4ec5c7ea92421a77de86a2ec70.jpg","_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/66784","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=66784"}],"version-history":[{"count":0,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/66784\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/39074"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=66784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=66784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}