I've been practicing my listening online, and yet there are still tons of vocabulary that I don't understand. <br/>So unfortunately here I ago again<br/><br/><div class='ytl __responsive' style='visibility: inherit; '><iframe class='youtube-player' type='text/html' width='640' height='393' src='https://www.youtube.com/embed/55BbRET4NiY?autoplay=0&amp;wmode=opaque allowfullscreen' frameborder = '0'></iframe></div><br/><br/>From 2:27 on. "We talk about nuclear fusion in our microwaves, string theory and <i>________</i>, all these scientic things."