{"id":14737,"date":"2025-04-11T23:20:49","date_gmt":"2025-04-11T23:20:49","guid":{"rendered":"https:\/\/topat10.com\/?p=14737"},"modified":"2025-04-11T23:20:49","modified_gmt":"2025-04-11T23:20:49","slug":"this-famous-physics-experiment-shows-why-the-government-should-support-useless-science","status":"publish","type":"post","link":"https:\/\/topat10.com\/?p=14737","title":{"rendered":"This Famous Physics Experiment Shows Why the Government Should Support \u2018Useless\u2019 Science"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<p class=\"paywall\">The lighter creates a tiny spark that jumps from one wire to the other in the front pair. This spark creates electromagnetic waves, with the two wires serving as transmission antennas to amplify the waves. The two wires in back are the receiving antennas, and they will produce an electric current just like with Hertz\u2019s loop of wire. Instead of creating a spark on the receiver, on my device the light bulb will turn on. The neon bulb is really nice since it&#8217;s high-voltage but low-current, which is exactly what we need.<\/p>\n<p class=\"paywall\">OK, lights out! Here&#8217;s what it looks like when you fire that spark.<\/p>\n<figure class=\"AssetEmbedWrapper-eVDQiB byBkf asset-embed\">\n<div class=\"AssetEmbedAssetContainer-eJxoAx dBHGoQ asset-embed__asset-container\"><span class=\"SpanWrapper-umhxW kGxnNB responsive-asset AssetEmbedResponsiveAsset-cXBNxi eCxVQK asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-cWuUZO dUOtEa AssetEmbedResponsiveAsset-cXBNxi eCxVQK asset-embed__responsive-asset responsive-image\"><noscript><img decoding=\"async\" alt=\"\" class=\"ResponsiveImageContainer-eybHBd fptoWY responsive-image__image lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_1600%2Cc_limit\/sparkradio.gif\" data-sizes=\"auto\" data-srcset=\"https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_120,c_limit\/sparkradio.gif 120w, https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_240,c_limit\/sparkradio.gif 240w, https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_320,c_limit\/sparkradio.gif 320w, https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_640,c_limit\/sparkradio.gif 640w, https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_960,c_limit\/sparkradio.gif 960w, https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_1280,c_limit\/sparkradio.gif 1280w, https:\/\/media.wired.com\/photos\/67e58e0dc7f8eb1ec3463166\/master\/w_1600,c_limit\/sparkradio.gif 1600w\" sizes=\"100vw\"\/><\/noscript><\/picture><\/span><\/div>\n<\/figure>\n<p class=\"paywall\">It might seem trivial, but it&#8217;s not. You are actually both sending <em>and<\/em> receiving electromagnetic waves.<\/p>\n<h2 class=\"paywall\">Science, What Is It Good For?<\/h2>\n<p class=\"paywall\">When Hertz showed his experimental verification of Maxwell&#8217;s equations, the science community knew it was cool, and the general public got curious. Journalists, naturally\u2014ever the pragmatists\u2014asked him what it could be used for. His reply:<\/p>\n<p class=\"paywall\">\u201cIt&#8217;s of no use whatsoever \u2026 this is just an experiment that proves Maestro Maxwell was right\u2014we just have these mysterious electromagnetic waves that we cannot see with the naked eye. But they are there.\u201d<\/p>\n<p class=\"paywall\">Why waste money on experiments if they\u2019re not useful? Well, the honest truth is, that\u2019s not why we do science. Human nature makes us explorers. We ask questions and seek answers. It&#8217;s just one of the things that make us who we are. Sometimes the answers are wrong (turns out the sun does <em>not<\/em> cross the sky in a chariot drawn by white horses), but we\u2019re always looking for better ones.<\/p>\n<p class=\"paywall\">And sometimes science is accidentally useful. In fact, you are likely using the results of Hertz\u2019s experiment right now. He not only showed that Maxwell&#8217;s equations were legit, he effectively invented the first radio transmitter. (Radio waves are just a slice of the electromagnetic spectrum.) This was then used for the wireless telegraph that allowed people to communicate with ships out at sea using Morse code. After that, people figured out how to send music and soap operas and commercials via radio waves, such that we now just call it \u201cradio.\u201d There was also this thing called television that could broadcast moving pictures through space.<\/p>\n<p class=\"paywall\">But it doesn\u2019t stop there! Since the device sends out electromagnetic waves that reflect off objects, you can measure how long it takes for the signal to come back, which tells you how far away they are\u2014i.e., radar and lidar, which is used in self-driving cars.  And of course, cell phone transmissions, Wi-Fi, and Bluetooth are all electromagnetic waves. It&#8217;s literally everywhere\u2014you\u2019re swimming in a sea of electromagnetic waves.<\/p>\n<p class=\"paywall\">So if the US spends money on science, will it boost profits and economic growth? Sometimes yes, sometimes no. There are many cool discoveries with no real application. I mean, look at gravitational waves detected from colliding black holes. Will that lead to a new type of internet or something? Probably not. But we\u2019re definitely richer for knowing about it.<\/p>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>The lighter creates a tiny spark that jumps from one wire to the other in the front pair. This spark creates electromagnetic waves, with the two wires serving as transmission antennas to amplify the waves. The two wires in back are the receiving antennas, and they will produce an electric current just like with Hertz\u2019s [&hellip;]<\/p>\n","protected":false},"author":269,"featured_media":14738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[703],"tags":[1211,3674,915],"class_list":["post-14737","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","tag-dot-physics","tag-electricity","tag-physics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>This 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Allain","author_link":"https:\/\/topat10.com\/?author=269"},"uagb_comment_info":0,"uagb_excerpt":"The lighter creates a tiny spark that jumps from one wire to the other in the front pair. This spark creates electromagnetic waves, with the two wires serving as transmission antennas to amplify the waves. 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