2 ms·
For 1. There was a full writeup posted on HN about this a year or two ago. The answer is pretty much that the tube is far deeper than any other competing system
by hyperhopper 3y ago
For 1. There was a full writeup posted on HN about this a year or two ago. The answer is pretty much that the tube is far deeper than any other competing system and also is below things that can't be disturbed for ventilation shafts.
It's getting like 1-2 degrees hotter each year