https://wiki.opensourceecology.org/index.php?action=history&feed=atom&title=Tunnels 2026-04-10T13:25:30Z Revision history for this page on the wiki MediaWiki 1.39.13 https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276068&oldid=prev 2022-09-12T00:14:32Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 00:14, 12 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6">Line 6:</td> <td colspan="2" class="diff-lineno">Line 6:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;html>&lt;blockquote class="twitter-tweet">&lt;p lang="en" dir="ltr">This is how subway tunnels are made; the future of transportation &lt;a href="https://t.co/H26YxUe1Fq">pic.twitter.com/H26YxUe1Fq&lt;/a>&lt;/p>&amp;mdash; Vala Afshar (@ValaAfshar) &lt;a href="https://twitter.com/ValaAfshar/status/1568767275636854784?ref_src=twsrc%5Etfw">September 11, 2022&lt;/a>&lt;/blockquote> &lt;script async src="https://platform.twitter.com/widgets.js" charset="utf-8">&lt;/script>&lt;/html></ins></div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276056&oldid=prev 2022-09-11T03:17:01Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 03:17, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Wikipedia on large tunnel-boring machines - [https://en.wikipedia.org/wiki/Tunnel_boring_machine]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Wikipedia on large tunnel-boring machines - [https://en.wikipedia.org/wiki/Tunnel_boring_machine]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Virgin is also into alt transport with underground Hyperloops [https://www.costar.com/article/1623931237/virgin-hyperloop-expands-downtown-los-angeles-headquarters-with-relocation]</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Cost - Boring Company is predicting $5M/mile [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html] and a mile per week boring distance. [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Cost - Boring Company is predicting $5M/mile [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html] and a mile per week boring distance. [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276055&oldid=prev 2022-09-11T03:14:27Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 03:14, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Wikipedia on large tunnel-boring machines - [https://en.wikipedia.org/wiki/Tunnel_boring_machine]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Wikipedia on large tunnel-boring machines - [https://en.wikipedia.org/wiki/Tunnel_boring_machine]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Cost - Boring Company is predicting $5M/mile [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html] and a mile per week boring distance. [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276053&oldid=prev 2022-09-11T03:11:00Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 03:11, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Wikipedia on large tunnel-boring machines - [https://en.wikipedia.org/wiki/Tunnel_boring_machine]</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276050&oldid=prev 2022-09-11T02:44:41Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 02:44, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l2">Line 2:</td> <td colspan="2" class="diff-lineno">Line 2:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Rock bolts are used to stabilize a tunnel - [https://www.youtube.com/watch?v=xNDppVTVUss]</ins></div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276049&oldid=prev 2022-09-11T02:36:33Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 02:36, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*In soft rock Youtube - digging for gold [https://www.youtube.com/watch?v=BRS1aoomuSc&amp;t=49s]</ins></div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276048&oldid=prev 2022-09-11T02:32:34Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 02:32, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Boring machines - called moles - cost a million. They work like this [https://science.howstuffworks.com/engineering/structural/tunnel.htm#:~:text=Tunneling%20through%20soft%20rock%20and,moles%2C%20to%20create%20the%20tunnel.]</ins></div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276045&oldid=prev 2022-09-11T02:08:30Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 02:08, 11 September 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]<ins style="font-weight: bold; text-decoration: none;">. The Boring Company was supposed to do $10M/mile</ins></div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=Tunnels&diff=276044&oldid=prev 2022-09-11T02:07:59Z

<p>Created page with &quot;*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-...&quot;</p> <p><b>New page</b></p><div>*There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]</div>

Marcin