{"id":160192,"date":"2023-03-13T18:22:56","date_gmt":"2023-03-13T23:22:56","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/03\/the-sharpest-object-in-the-world-cant-cut-anything"},"modified":"2023-03-13T18:22:56","modified_gmt":"2023-03-13T23:22:56","slug":"the-sharpest-object-in-the-world-cant-cut-anything","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/03\/the-sharpest-object-in-the-world-cant-cut-anything","title":{"rendered":"The Sharpest Object In The World Can\u2019t Cut Anything"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/LK5cPn6eGbc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Head to <a href=\"https:\/\/linode.com\/scishow\">https:\/\/linode.com\/scishow<\/a> to get a $100 60-day credit on a new Linode account. Linode offers simple, affordable, and accessible Linux cloud solutions and services.<\/p>\n<p>Scientists like to measure things, but they\u2019ve had a heck of a time doing that with sharpness. And even if no one agrees on exactly how to measure it, our search for better tools has recently led to some of the sharpest objects we\u2019ve ever created.<\/p>\n<p>Hosted by: Hank Green (he\/him)<br \/> \u2014\u2014\u2014<br \/> Support SciShow by becoming a patron on Patreon: <a href=\"https:\/\/www.patreon.com\/scishow\">https:\/\/www.patreon.com\/scishow<\/a>.<br \/> \u2014\u2014\u2014<br \/> Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tom\u00e1s Lagos Gonz\u00e1lez, Jacob, Christoph Schwanke, Sam Lutfi, Bryan Cloer.<br \/> \u2014\u2014\u2014<br \/> Looking for SciShow elsewhere on the internet?<br \/> SciShow Tangents Podcast: <a href=\"https:\/\/scishow-tangents.simplecast.com\/\">https:\/\/scishow-tangents.simplecast.com\/<\/a><br \/> TikTok: <a href=\"https:\/\/www.tiktok.com\/@scishow\">https:\/\/www.tiktok.com\/@scishow<\/a>.<br \/> Twitter: <a href=\"http:\/\/www.twitter.com\/scishow\">http:\/\/www.twitter.com\/scishow<\/a>.<br \/> Instagram: <a href=\"http:\/\/instagram.com\/thescishowFacebook:\">http:\/\/instagram.com\/thescishowFacebook:<\/a> <a href=\"http:\/\/www.facebook.com\/scishow\">http:\/\/www.facebook.com\/scishow<\/a>.<\/p>\n<p>#SciShow #science #education #learning #complexly.<br \/> \u2014\u2014\u2014<br \/> Sources:<br \/>\n<a href=\"https:\/\/www.tf.uni-kiel.de\/matwis\/amat\/iss\/kap_c\/backbone\/rc_2_4.html\">https:\/\/www.tf.uni-kiel.de\/matwis\/amat\/iss\/kap_c\/backbone\/rc_2_4.html<\/a>.<br \/>\n<a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/j.1524-4725.1982.tb01093.x\">https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/j.1524-4725.1982.tb01093.x<\/a>.<br \/>\n<a href=\"https:\/\/www.proquest.com\/openview\/ecab7dfbc6c1cfec6fabf4d0f7a9c53d\/1?cbl=44644&pq-origsite=gscholar\">https:\/\/www.proquest.com\/openview\/ecab7dfbc6c1cfec6fabf4d0f7\u2026e=gscholar<\/a>.<br \/>\n<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0003687006000238\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0003687006000238<\/a><br \/>\n<a href=\"https:\/\/physics.aps.org\/articles\/v9\/155\">https:\/\/physics.aps.org\/articles\/v9\/155<\/a><br \/>\n<a href=\"https:\/\/www.guinnessworldrecords.com\/world-records\/sharpest-object-man-made\">https:\/\/www.guinnessworldrecords.com\/world-records\/sharpest-object-man-made<\/a>.<br \/>\n<a href=\"https:\/\/books.google.com\/books?id=gDflDwAAQBAJ&pg=PA71&lpg=PA71&dq=brubacher+edge+sharpness+scale&source=bl&ots=TnEgek-zRV&sig=ACfU3U1V9cHUJ-It0ZUQh9Rjg5G4W9dbqg&hl=en&sa=X&ved=2ahUKEwilpOrJ4eX7AhXTmIkEHajNCYM4KBDoAXoECB0QAw#v=onepage&q=brubacher%20edge%20sharpness%20scale&f=false\">https:\/\/books.google.com\/books?id=gDflDwAAQBAJ&amp;pg=PA71&amp;lpg=P\u2026le&amp;f=false<\/a>.<br \/>\n<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12124714\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/12124714\/<\/a><br \/>\n<a href=\"https:\/\/www.jstor.org\/stable\/44159720?read-now=1#page_scan_tab_contents\">https:\/\/www.jstor.org\/stable\/44159720?read-now=1#page_scan_tab_contents<\/a>.<br \/>\n<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3380774\/\">https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3380774\/<\/a><br \/>\n<a href=\"https:\/\/www.sciencefocus.com\/science\/whats-the-sharpest-knife-in-the-world\/\">https:\/\/www.sciencefocus.com\/science\/whats-the-sharpest-knife-in-the-world\/<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"MuuujR3Oid\"><p><a href=\"https:\/\/scienceofsharp.com\/\">scienceofsharp<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;scienceofsharp&#8221; &#8212; scienceofsharp\" src=\"https:\/\/scienceofsharp.com\/embed\/#?secret=UuOSDfIW9N#?secret=MuuujR3Oid\" data-secret=\"MuuujR3Oid\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><br \/>\n<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0924013604007022\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0924013604007022<\/a><br \/>\n<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0013794406004073\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0013794406004073<\/a><br \/>\n<a href=\"https:\/\/www.scientific.net\/KEM.293-294.769\">https:\/\/www.scientific.net\/KEM.293-294.769<\/a><br \/>\n<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0020740318322665\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0020740318322665<\/a><br \/>\n<a href=\"https:\/\/www.cambridge.org\/core\/journals\/robotica\/article\/abs\/modeling-of-blade-sharpness-and-compression-cut-of-biomaterials\/33FA54D15E757B60A146F47BAFBA8B6F\">https:\/\/www.cambridge.org\/core\/journals\/robotica\/article\/abs\u20267BAFBA8B6F<\/a><br \/>\n<a href=\"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s10816-022-09596-0.pdf?pdf\">https:\/\/link.springer.com\/content\/pdf\/10.1007\/s10816-022\u2026;0.pdf?pdf<\/a>.<\/p>\n<p>Images:<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:\">https:\/\/commons.wikimedia.org\/wiki\/File:<\/a> Crater_knife_edge.jpg.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"pTCtf27oP3\"><p><a href=\"https:\/\/scienceofsharp.com\/2021\/06\/15\/dual-grit-sharpening\/\">Dual Grit Sharpening<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Dual Grit Sharpening&#8221; &#8212; scienceofsharp\" src=\"https:\/\/scienceofsharp.com\/2021\/06\/15\/dual-grit-sharpening\/embed\/#?secret=SD7p2WCouy#?secret=pTCtf27oP3\" data-secret=\"pTCtf27oP3\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><br \/>\n<a href=\"https:\/\/www.researchgate.net\/figure\/Artificial-sapphire-scalpel-a-physical-map-b-OCT-image_fig1_354874023\">https:\/\/www.researchgate.net\/figure\/Artificial-sapphire-scal\u2026_354874023<\/a><br \/>\n<a href=\"https:\/\/www.southampton.ac.uk\/biu\/galleries\/sem.page\">https:\/\/www.southampton.ac.uk\/biu\/galleries\/sem.page<\/a>.<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:\">https:\/\/commons.wikimedia.org\/wiki\/File:<\/a> Obsidian_blade_mounted_in_ornamental_handle,_from_Admiralty_Wellcome_M0015133.jpg.<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Blade_MET_VS1994_35_468.jpeg\">https:\/\/commons.wikimedia.org\/wiki\/File:Blade_MET_VS1994_35_468.jpeg<\/a>.<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Macro_sewing_machine_needles.jpg\">https:\/\/commons.wikimedia.org\/wiki\/File:Macro_sewing_machine_needles.jpg<\/a>.<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Beveled_tip_of_a_hypodermic_needle_20090714_005.JPG\">https:\/\/commons.wikimedia.org\/wiki\/File:Beveled_tip_of_a_hyp\u202614_005.JPG<\/a><br \/>\n<a href=\"https:\/\/www.researchgate.net\/figure\/SEM-image-of-a-carbon-nanotube-nanoneedle-a-A-tungsten-tip-and-b-an-AFM-tip-Scale_fig2_51450738\">https:\/\/www.researchgate.net\/figure\/SEM-image-of-a-carbon-na\u20262_51450738<\/a><br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Scanning_Tunneling_Microscope_schematic.svg\">https:\/\/commons.wikimedia.org\/wiki\/File:Scanning_Tunneling_M\u2026ematic.svg<\/a>.<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:%D0%9E%D0%B4%D0%BD%D0%BE%D1%80%D0%B0%D0%B7%D0%BE%D0%B2%D0%BE%D0%B5_%D0%BB%D0%B5%D0%B7%D0%B2%D0%B8%D0%B5_%D0%B4%D0%BB%D1%8F_%D0%BC%D0%B8%D0%BA%D1%80%D0%BE%D1%82%D0%BE%D0%BC%D0%B0.jpg\">https:\/\/commons.wikimedia.org\/wiki\/File:%D0%9E%D0%B4%D0%BD%D\u2026%D0%B0.jpg<\/a>.<br \/>\n<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Prehistoric_Denmark_Stone_Knives_%26_Spears_(28471451010).jpg\">https:\/\/commons.wikimedia.org\/wiki\/File:Prehistoric_Denmark_\u202651010).jpg<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Head to https:\/\/linode.com\/scishow to get a $100 60-day credit on a new Linode account. Linode offers simple, affordable, and accessible Linux cloud solutions and services. Scientists like to measure things, but they\u2019ve had a heck of a time doing that with sharpness. And even if no one agrees on exactly how to measure it, our [\u2026]<\/p>\n","protected":false},"author":599,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,32],"tags":[],"class_list":["post-160192","post","type-post","status-publish","format-standard","hentry","category-computing","category-education"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/160192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/599"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=160192"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/160192\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=160192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=160192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=160192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}