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They use a tunnel boring machine to bore a tunnel with a 45° slope. They do go into the mechanics of how they make this insanely massive machine drive up a gra
by tifik 2y ago
They use a tunnel boring machine to bore a tunnel with a 45° slope.
They do go into the mechanics of how they make this insanely massive machine drive up a grade that steep, and how they ensure it doesn't slide backward.
I was glued to the screen more than with most movies.
If you like channels like Practical Engineering, you will enjoy this.
- em-bee 2y agoI was glued to the screen more than with most movies i was going to say something similar. this was better than the action movie i saw earlier.
- etrautmann 2y agoAgreed - most interesting YouTube video I’ve seen in many months.
- baq 2y agoI watched this at 2x expecting a mildly interesting educational video. This was a mistake. Almost forgot to blink.