{"id":86763,"date":"2025-05-09T07:24:07","date_gmt":"2025-05-09T07:24:07","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/86763\/"},"modified":"2025-05-09T07:24:07","modified_gmt":"2025-05-09T07:24:07","slug":"eggs-less-likely-to-crack-when-dropped-side-on-research-reveals","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/86763\/","title":{"rendered":"Eggs less likely to crack when dropped side-on, research reveals"},"content":{"rendered":"<p>            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.europesays.com\/uk\/wp-content\/uploads\/2025\/05\/drop-egg.jpg\" alt=\"drop egg\" title=\"Credit: Pixabay\/CC0 Public Domain\" width=\"800\" height=\"530\"\/><\/p>\n<p>                Credit: Pixabay\/CC0 Public Domain<\/p>\n<p>Eggs are less likely to crack when dropped on their side than when dropped vertically, finds research published in Communications Physics. Controlled trials simulating the &#8220;egg drop challenge,&#8221; a common classroom science experiment, found that the shell of an egg can better withstand an impact when dropped side-on.<\/p>\n<p>The goal of the &#8220;egg drop challenge&#8221; is for students to prevent an egg from cracking when dropped from a set height. A common belief is that an egg is stronger and less likely to crack when dropped vertically, with this assumption often seen in teaching guidance from schools and among popular science communicators.<\/p>\n<p>Tal Cohen and colleagues conducted a series of 180 drop tests to compare how <a href=\"https:\/\/phys.org\/tags\/chicken+eggs\/\" rel=\"tag noopener\" class=\"textTag\" target=\"_blank\">chicken eggs<\/a> break when oriented vertically or side-on.<\/p>\n<p>After dropping 60 eggs from each of three different heights\u20148, 9, and 10 millimeters\u2014on to a hard surface, the authors observed that, on average, eggs dropped vertically broke at lower <a href=\"https:\/\/phys.org\/tags\/drop\/\" rel=\"tag noopener\" class=\"textTag\" target=\"_blank\">drop<\/a> heights. More than half of the eggs dropped vertically from 8 millimeters cracked, with which end of the egg pointed downwards making no difference.<\/p>\n<p>However, less than 10% of horizontally-dropped eggs cracked from the same height. A further 60 eggs were subjected to compression tests, which measured the <a href=\"https:\/\/phys.org\/tags\/force\/\" rel=\"tag noopener\" class=\"textTag\" target=\"_blank\">force<\/a> required to crack the eggs vertically and horizontally.<\/p>\n<p>While 45 newtons of force was required to break the eggs in both orientations, the horizontally-loaded eggs could compress further before cracking. The authors suggest that this means that eggs are more flexible around their <a href=\"https:\/\/phys.org\/tags\/equator\/\" rel=\"tag noopener\" class=\"textTag\" target=\"_blank\">equator<\/a>, and therefore able to absorb more energy in this orientation before breaking.<\/p>\n<p>The authors conclude that the reason behind the common misassumption that an egg dropped vertically is less likely to crack is a confusion between the physical properties of stiffness, strength, and toughness.<\/p>\n<p>Eggs are stiffer when compressed vertically, but the authors say that this does not necessarily mean that eggs are also tougher in that direction. The authors also suggest that future research could explore the application of these findings to engineering scenarios, such as how structures respond to dynamic loads.<\/p>\n<p><strong>More information:<\/strong><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tChallenging common notions on how eggs break and the role of strength versus toughness, Communications Physics (2025). <a data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1038\/s42005-025-02087-0\" target=\"_blank\" rel=\"noopener\">DOI: 10.1038\/s42005-025-02087-0<\/a><\/p>\n<p>\n\t\t\t\t\t\t\t\t\t\t\t\t\tProvided by<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/phys.org\/partners\/nature-publishing-group\/\" target=\"_blank\" rel=\"noopener\">Nature Publishing Group<\/a><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"icon_open\" href=\"https:\/\/www.nature.com\/\" target=\"_blank\" rel=\"nofollow noopener\"><\/p>\n<p>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t\t\t\t\t\t\t\t<strong>Citation<\/strong>:<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tEggs less likely to crack when dropped side-on, research reveals (2025, May 8)<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tretrieved 9 May 2025<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tfrom https:\/\/phys.org\/news\/2025-05-eggs-side-reveals.html\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n<p>\n\t\t\t\t\t\t\t\t\t\t\t This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n\t\t\t\t\t\t\t\t\t\t\t part may be reproduced without the written permission. The content is provided for information purposes only.\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n","protected":false},"excerpt":{"rendered":"Credit: Pixabay\/CC0 Public Domain Eggs are less likely to crack when dropped on their side than when dropped&hellip;\n","protected":false},"author":2,"featured_media":86764,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3845],"tags":[75,76,74,71,70,72,53,73,16,15],"class_list":{"0":"post-86763","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-physics","8":"tag-materials","9":"tag-nanotech","10":"tag-physics","11":"tag-physics-news","12":"tag-science","13":"tag-science-news","14":"tag-technology","15":"tag-technology-news","16":"tag-uk","17":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/114476683411006897","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/86763","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=86763"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/86763\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/86764"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=86763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=86763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=86763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}