Sunday, March 28, 2021

Construction by Destruction

 



11 comments:

  1. Somehow mesmerizing and satisfying. Next stop the fence around the capital

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    1. AMEN to THAT!

      We are not SUBJECTS!

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    2. Alternatively, we leave the fence, move the guard outside, and not let the criminals out.

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  2. Sadly in a few years given the way education is going there won't be anyone with the skills to understand how to do that....at least not if they were born and educated in the US.

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    1. Nay. They who will know will be them who work as underground sappers. Some might call them amateurs but they will have learned the skills one way or another. You know, the monkey wrench gang.

      This in response to those who make peaceful revolution impossible, make violent revolution inevitable.

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  3. No. Weld the gates shut and cut the power.

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  4. Is it IR drop why all charges don't go at exact same time?

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  5. The bridge charges are connected either by detonating cord, or blast tubes - the more recent analog. If you stretch out a long enough piece of cord or tube, you can see the detonation propagate from one end to another. It's not as fast as an electrical current. The stuff I used in the Corps was more basic/primitive. My longest-serving friend (he's not my oldest friend, but he's been my friend the longest) is a blaster in a commercial quarry, and the electrical blasting caps he has available to him can come with various delays (between receiving the electrical jolt and setting off the charge). Those allow him to set off a series of charges like opening a zipper. As you see in these two flicks. Side note: if we had to blast something underwater or buried, we would always use det cord from the charge up to the surface, to avoid having the blasting cap submerged or buried. Not only would it be bad to get it wet, but if the charge doesn't go off you don't want to be digging or diving to get down to the cap, so you can replace it. It would be bad to have a hangfire and be right down there with it.

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  6. That's det cord, burns at 26,000 ft per second. I was a demolitions specialist with the 54th Combat Engr Bn in Wildlfecken Germany. We built bridges, then blew em up. Most people don't know it but after WWII most of the major highways in Europe were designed with blow-out provisions. That is, manholes located where they shouldn't be for the purpose of loading them with demolitions and blowing them out at the right time. These locations were in places where it would be difficult or impossible for armor or large troop or supply movement to go around. Inneresting stuff, but I would not touch any of it any more. I got old and less dumb.

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  7. This bridge implosion took place, in Marble Falls TX.

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  8. Just a silly question. Do they, or how do they clean up the steel ? Would be terrible for navigation.

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