{"version":"1.0","provider_name":"Autonotion","provider_url":"https:\/\/www.autonocion.com\/us","author_name":"Luis Reyes","author_url":"https:\/\/www.autonocion.com\/us\/author\/luisreyes\/","title":"A 464-ton German machine named Caroline is grinding through chalk 135 feet under the Thames, and scattered through that chalk are flint nodules harder than the concrete rings she bolts up behind herself, some of them at 145,000 psi","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"FVYJBsDUom\"><a href=\"https:\/\/www.autonocion.com\/us\/german-machine-caroline-thames-flint\/\">A 464-ton German machine named Caroline is grinding through chalk 135 feet under the Thames, and scattered through that chalk are flint nodules harder than the concrete rings she bolts up behind herself, some of them at 145,000 psi<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.autonocion.com\/us\/german-machine-caroline-thames-flint\/embed\/#?secret=FVYJBsDUom\" width=\"600\" height=\"338\" title=\"&#8220;A 464-ton German machine named Caroline is grinding through chalk 135 feet under the Thames, and scattered through that chalk are flint nodules harder than the concrete rings she bolts up behind herself, some of them at 145,000 psi&#8221; &#8212; Autonotion\" data-secret=\"FVYJBsDUom\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.autonocion.com\/us\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.autonocion.com\/us\/wp-content\/uploads\/2026\/08\/Caroline-TBM-Grain-to-Tilbury-768x432.jpg","thumbnail_width":600,"thumbnail_height":338}