Impossible Engineering English Subtitles

1<br>00:00:01,590 --> 00:00:05,150<br>In this episode,<br>the need for speed.<br><br>2<br>00:00:05,160 --> 00:00:08,020<br>The unique challenges of making<br>the world's railroads<br><br>3<br>00:00:08,030 --> 00:00:10,230<br>run faster than ever...<br><br>4<br>00:00:10,230 --> 00:00:13,360<br>When you see tiny, little pods<br>moving at incredible speed<br><br>5<br>00:00:13,360 --> 00:00:15,230<br>down these tubes,<br>you can really see<br>