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9/11 qin-shi-huangdi-fireball

Building implosion

In the controlled demolition industry, building implosion is the strategic placing of explosive material and timing of its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate surroundings. Despite its terminology, building implosion also includes the controlled demolition of other structures, like bridges, smokestacks, towers, and tunnels. This is typically done to save time and money of what would otherwise be an extensive demolition process with construction equipment, as well as to reduce construction workers exposure to infrastructure that is in severe disrepair.

Building implosion, which reduces to seconds a process which could take months or years to achieve by other methods, typically occurs in urban areas[citation needed] and often involves large landmark structures.

The actual use of the term "implosion" to refer to the destruction of a building is a misnomer. This had been stated of the destruction of 1515 Tower in West Palm Beach, Florida. "What happens is, you use explosive materials in critical structural connections to allow gravity to bring it down.

The term "implosion" was coined by my grandmother back in, I guess, the '60s. It's a more descriptive way to explain what we do than "explosion". There are a series of small explosions, but the building itself isn't erupting outward. It's actually being pulled in on top of itself. What we're really doing is removing specific support columns within the structure and then cajoling the building in one direction or another, or straight down.

  •  Stacy Loizeaux, NOVA, December 1996

Building implosion techniques do not rely on the difference between internal and external pressure to collapse a structure. Instead, the goal is to induce a progressive collapse by weakening or removing critical supports; therefore, the building can no longer withstand gravity loads and will fail under its own weight

Numerous small explosives, strategically placed within the structure, are used to catalyze the collapse. Nitroglycerin, dynamite, or other explosives are used to shatter reinforced concrete supports. Linear shaped charges are used to sever steel supports. These explosives are progressively detonated on supports throughout the structure. Then, explosives on the lower floors initiate the controlled collapse.

A simple structure like a chimney can be prepared for demolition in less than a day. Larger or more complex structures can take up to six months of preparation to remove internal walls and wrap columns with fabric and fencing before firing the explosives.

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[-] FuckyWucky@hexbear.net 55 points 1 month ago

Sussy that Google Earth satellite map on Gaza is from July 2023 and hasn't been updated since.

Just 5km away, Sinai has imagery from December 2023.

[-] coolusername@lemmy.ml 33 points 1 month ago

google is controlled by the cia

[-] bazingabrain@hexbear.net 46 points 1 month ago

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IT

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[-] AernaLingus@hexbear.net 42 points 1 month ago

It's wild to me that 9/11 is supposed to be this huge solemn event but no one gives a shit about the thousandfold horrors we inflicted upon the Middle East in return. On the one hand, you have a few thousand lives and a handful of damaged and destroyed buildings, none of them critical. On the other hand, you have MILLIONS of lives, devastated infrastructure, imprisonment, torture. There's just no comparison. And when you spend so much energy memorializing the former, you are implicitly declaring the latter to be of lesser importance (some will go as far as to say it explicitly, but beyond civility there's little practical difference).

[-] BodyBySisyphus@hexbear.net 24 points 1 month ago

It's a really psychologically isolating day to be a leftist in what has been a very long series of psychologically isolating days. The extent to which people just... don't care, can't be bothered to consider the perspective of someone outside their borders is gross.

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[-] starlight32@hexbear.net 37 points 1 month ago

merry 9/11 to those who celebrate :) gender-reveal

Death to America for crushing me with 9/11 stuff since I was a toddler even though I don’t even live in the US. I don’t remember any of the dates of mass killing events in my own country but 9/11 I’ll always remember and I hate it. I did believe for a few years that the date was November 9 though.

[-] ashinadash@hexbear.net 35 points 1 month ago

I did believe for a few years that the date was November 9 though.

Excellent bit bullying amerikkkans for their foolish date format.

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[-] Yor@hexbear.net 36 points 1 month ago

I should have never looked, but the libs in Hasan's comment section are talking about how great Kamala did and how hot she is 💀

ig defending genocide just needed the right spokesperson for them 😞

[-] thelastaxolotl@hexbear.net 22 points 1 month ago

So thats why there are so many clips of him fighting chat lately

[-] Dr_Gabriel_Aby@hexbear.net 22 points 1 month ago

Objectively, Kamala did do great for American politics and is hot for a politician.

This debate wasn’t for us

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[-] BelieveRevolt@hexbear.net 33 points 1 month ago

If 9/11’s so good, why isn’t there a 9/12? smuglord

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[-] DengistDonnieDarko@hexbear.net 32 points 1 month ago

I would like to reiterate my opinion that america deserved 9/11, and in fact got off extremely lightly, all things considered.

[-] HarryLime@hexbear.net 32 points 1 month ago

Matt Christman had successful heart surgery

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[-] Yor@hexbear.net 30 points 1 month ago* (last edited 1 month ago)
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[-] Moss@hexbear.net 28 points 1 month ago

I honk shoo'd last night instead of watching the debate, did I miss anything funny?

[-] Commiejones@hexbear.net 26 points 1 month ago

It was pretty weak. Trump did say "I'm talking right now. You know about that one don't you?"

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[-] Weedian@hexbear.net 28 points 1 month ago
[-] thelastaxolotl@hexbear.net 28 points 1 month ago* (last edited 1 month ago)

New Megathread nerds!

9/11

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No current struggle session discussion here on the new general megathread, i will ban you from the comm and remove your comment, have a good day/night :meow-coffee:

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[-] magi@hexbear.net 27 points 1 month ago
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[-] GaveUp@hexbear.net 27 points 1 month ago* (last edited 1 month ago)

*manager tells us to work faster because his bosses told him to tell us to work faster because the stock price fell a lot*

*I work faster and quality of code drops*

"Why can't you just work fast and have high quality code"

Gee man maybe it's because I'm literally the only person on my team with a life and acts like a human instead of a robot

Where it's normal here for people to tell others to message them for help on vacation, not take any vacation even when maxed out on days b/c they admit they don't know what to do, work at nights after a full day in the office even when they have a spouse and kids at home, drink 3-5 cups of coffee every morning to laser focus, and not say morning/bye/leave people still eating lunch to maximize productivity

Man where the fuck are these fake desk jobs, all my coding ones have been far too real, and they keep getting realer every new job I get

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[-] Frogmanfromlake@hexbear.net 27 points 1 month ago

I was driving home from grocery shopping and just saw four dead bodies laid out not too far from where I live and recognized one of the guys as an old friend.

They’d apparently gotten mixed up in gang violence and one of the guys was targeted for snitching. Stuff like this is so common that I’ve become numb to it and treat it’s a temporary source of amusement.

This is life in the poor regions of the global south.

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[-] LocalOaf@hexbear.net 26 points 1 month ago

Merry 9/11 to all who celebrate from Felix and Curly

cuddle gender-reveal

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[-] Acute_Engles@hexbear.net 26 points 1 month ago

All i can think of now that I'm in the industry is "the world's largest mass asbestos exposure event in world history"

[-] DengistDonnieDarko@hexbear.net 25 points 1 month ago
[-] ashinadash@hexbear.net 27 points 1 month ago

che-smile "The only difference between Stalin and Hitler was their core ideologies" dredge tank post

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[-] LeylaLove@hexbear.net 25 points 1 month ago

Man, Hexbear keeps logging me out on everything and it's getting me tilted angry-hex

Separate from that though, life is good. I have today off from work so I can stay up as late as I want this morning/night. I figured out how I'm going to do sublingual diy estradiol so that's really cool and exciting. I also get my first paycheck from the new job this friday, and the paycheck from the WFH job on Thursday, so I'll be not dead broke for the first time in quite a while.

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[-] ClimateChangeAnxiety@hexbear.net 25 points 1 month ago

My partner and I found a nearly complete possum skeleton in the woods and cleaned it up it’s so cool

We’re gonna get some wire and a tiny drill and reconstruct it

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[-] thelastaxolotl@hexbear.net 24 points 1 month ago

Very Funny my country (México) had its january 6 yesterday and it also amounted to nothing

Conservatives just arent what they used to be

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[-] electric_nan@lemmy.ml 24 points 1 month ago

We had to watch a 9/11 video in the morning meeting at work today. The icing on the cake was that the final frame was a lockheed-martin logo.

[-] MF_COOM@hexbear.net 24 points 1 month ago

Been wondering how my dad has been acquiring this robust shitlib politics over the past few years.

He asked me to change where his health info is on his phone and I saw on his homescreen a reddit-logo app with a red notification bubble.

So now I know what's liquefying his brain at least

[-] Yeat@hexbear.net 24 points 1 month ago

Liberals treating the “Hatian immigrants eating dogs” thing as a meme and using it as a thing to show how “crazy” Trump is is really rubbing me the wrong way. It might be because I personally know a lot of Hatian immigrants and work with them, but I feel like they’re completely undermining how dangerous the rhetoric is and how many people genuinely unironically believe it and it just makes me sad for my coworkers :/

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[-] MusicOwl@hexbear.net 24 points 1 month ago

Listening to Allende’s last speech now. I always get emotional at him stating among his last words that he “was merely an interpreter of great yearnings for justice.”

[-] Blottergrass@hexbear.net 23 points 1 month ago* (last edited 1 month ago)

I spent my 9/11 learning that insurance aint covering the surgery I need on my tailbone and the only surgeon that will do it will only do it two days before I was supposed to fly to my family for thanksgiving vacation and recovery involves no sitting. So no thxgiving this year, no seeing family, all PTO is going towards recovery, and I'm paying out of pocket (putting in on credit, there's nothing in the pocket). Oh an no refunds on the flight ticket even with medical emergency. Happy 9/11!

[-] Tofu_Lewis@hexbear.net 23 points 1 month ago

I watched Three Days of the Condor and now I believe Bush did 9/11 but all the NYT reporters are blaming Iraq?

[-] Blep@hexbear.net 23 points 1 month ago

Had a prof gas up gramsci and talk about decolonial movements, then like 10m later talk about how Marxism is a failed ideology and revolutions dont work.

curious-marx

[-] GoodGuyWithACat@hexbear.net 23 points 1 month ago

Standard professor moment. They love using Marxism to analyze their discipline but flip on the neoliberal switch anytime it applies to modern world politics.

[-] Sickos@hexbear.net 23 points 1 month ago

Ugh they were arguing about who should shoulder the blame for the shitty pullout from Afghanistan when George W. Bush is still alive and free. Deeply unserious political process

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[-] volcel_olive_oil@hexbear.net 23 points 1 month ago

the day will come when the joke goes full circle and we can finally say a second 9/11 has hit AmeriKKKa second-plane

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[-] peppersky@hexbear.net 23 points 1 month ago

everything fucking sucks, nothing good has happened in the world in the last 60 years and there are no signs of things ever fucking changing. how do you people cope because its getting harder and harder

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[-] Mindfury@hexbear.net 22 points 1 month ago

Infinite controlled implosion on the first world

[-] anonochronomus@hexbear.net 22 points 1 month ago
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[-] Frank@hexbear.net 22 points 1 month ago

Me in 2014: Stalin was an evil dictator whose harsh methods were not justified

Me in 2024: Stalin was soft. And we're all paying for it.

Sorry, Joe. stalin-gun-2 stalin-gun-1 stalin-gun-2

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[-] MusicOwl@hexbear.net 22 points 1 month ago

down with cis

[-] Torenico@hexbear.net 22 points 1 month ago

oh shit it's actually 9/11 lmfaoo

DEATH TO AMERIKKKA

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[-] Goblinmancer@hexbear.net 22 points 1 month ago

i hate osama bin laden hes the kid who does 0 work in the group project and takes all the credit.

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this post was submitted on 11 Sep 2024
171 points (89.0% liked)

chapotraphouse

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