Missing: radioactive capsule the size of a pea

<p>A radioactive capsule the size of a pencil eraser fell of a truck in Western Australia. The capsule was part of a machine used in mining for iron ore. That led mining giant Rio Tinto and the Australian government to search a 1,400-kilometer stretch of desolate highway, searching for something the size of a pea. Plus, learn the phrasal verb "set off."</p> <p>--</p> <p>At Plain English, we make English lessons for the modern world.</p> <p>-- Today’s full English lesson, including a free transcript, can be found at: <a href= "https://plainenglish.com/550">https://plainenglish.com/550</a></p> <p>-- Learning English should be fun! That’s why our lessons are about current events and trending topics you care about: business, travel, technology, health, science, politics, the environment, and so much more. Our free English lessons always include English expressions and phrasal verbs, too.</p> <p>-- Learn even more English at <a href= "https://www.plainenglish.com/">PlainEnglish.com</a>, where we have fast and slow audio, translations, videos, online English courses, and a supportive community of English learners like you. Sign up free at <a href= "https://www.plainenglish.com/join">PlainEnglish.com/Join</a></p> <p>-- Aprende inglés gratis en línea con nuestro curso de inglés. Se habla a una velocidad lenta para que todos entiendan. ¡Aprende ingles con nosotros ahora! | Aprenda Inglês online grátis com o Plain English, a uma velocidade menor, para que todos possam entender.</p> <p>Contact: E-mail <a href= "mailto:jeff@plainenglish.com">jeff@plainenglish.com</a> | WhatsApp <a href="https://wa.me/13129678757">+1 312 967 8757</a> | Facebook <a href= "https://www.facebook.com/PlainEnglishPod">PlainEnglishPod</a> | Instagram <a href= "https://www.instagram.com/PlainEnglishPod">PlainEnglishPod</a> | Twitter <a href= "https://www.twitter.com/PlainEnglishPod">@PlainEnglishPod</a></p>