Tunnel of love (32489303638).jpg
From Underfoot
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Summary
| Description |
A key insight of the new rigs for digging tunnels, geothermal heat exchangers and deep-sea oil-well-drilling robots is the dramatic cost reduction obtained by a smaller tunnel. If you imagine a tunnel that will only allow for EVs (vehicles or sleds), you don't have to deal with the massive air-handling pipes to evacuate toxic diesel exhausts. At the limit, I wonder if CO2 scrubbers, as used in <a href="https://www.flickr.com/photos/jurvetson/6300700751/in/photolist-28oKQve-MCYPMo-YBjuYY-aALJPz-5tk6C-Y6V1co-BWtEHS-XYQ4Er-Z15cFc-Z15cA2-XYQ4z6-YBjv4Y-XYQ4uX">submarines and spacecraft</a>, could locally purify like a scuba rebreather. "The current standard for a one-lane tunnel is approximately 28 feet. By placing vehicles on a stabilized electric skate, the diameter can be reduced to less than 14 feet. Reducing the diameter in half reduces tunneling costs by 3-4 times." — Boring <a rel="noreferrer nofollow">FAQ</a> |
| Date | Taken on 13 December 2018, 16:31 |
| Source | tunnel of love |
| Author | Steve Jurvetson from Menlo Park, USA |
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This image was originally posted to Flickr by jurvetson at https://flickr.com/photos/44124348109@N01/32489303638. It was reviewed on 24 December 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:22, 24 December 2018 | | 5,472 × 3,648 (3.68 MB) | wikimediacommons>BugWarp | Transferred from Flickr via #flickr2commons |
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