2 More Hours Of Engineering Catastrophes That Make Modern Designs So Safe

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  • Опубликовано: 17 ноя 2024

Комментарии • 36

  • @luddite333
    @luddite333 27 дней назад +2

    EV vehicles are the biggest threat to tunnels and bridges imaginable

  • @canoaslan1011
    @canoaslan1011 Месяц назад +2

    No matter what they say now, There is no way Ill go into those so called safety cell rooms in those death trap Tunnels. Id get out and walk towards an exit, yes I might die from smoke, but id rather that, then going into those no exit rooms.

  • @David19553
    @David19553 Месяц назад

    Extremely informative. Live long and prosper.🖖

  • @megazw7740
    @megazw7740 Месяц назад +2

    Tunnels are sectional structures so I don’t understand why there isn’t a capability to close off a section or multiple sections to prevent air going in also rigged with fire systems like powder or foam. Entering a tunnel to fight a fire seems unrealistic in most cases so there needs to be a way to use the design of a tunnel to our advantage to reduce risk.

  • @psikeyhackr6914
    @psikeyhackr6914 Месяц назад

    Try finding the distribution of steel down any skyscraper.

  • @marieonishenko
    @marieonishenko 2 месяца назад +14

    Don’t know if I’d call a tunnel a miracle of modern engineering considering the oldest tunnel excavated is from the eighth century.

    • @spybaz
      @spybaz Месяц назад +2

      bet it didn''t have electric lights or fans though

    • @yucrysoez
      @yucrysoez 26 дней назад +1

      ​@@spybaz☠️

    • @gornabyjones6113
      @gornabyjones6113 18 дней назад +3

      You seem fun

    • @David-wj3tg
      @David-wj3tg 18 дней назад +2

      We're talking proper tunnels here mate

  • @danielfox9461
    @danielfox9461 2 месяца назад +2

    Being cooked alive is a horrifying way to go but I can think of worse. I believe the saying is the only thing that scares people worse than burning to death is being eaten alive.

    • @_Meng_Lan
      @_Meng_Lan 2 месяца назад +1

      They died lack of oxygen first probably

    • @danielfox9461
      @danielfox9461 2 месяца назад

      @@_Meng_Lan are those safety survival cells not supplied with fresh air from another source? To me that would seem like a necessity for a 'survival' room.

  • @kcleach9312
    @kcleach9312 Месяц назад +3

    why did you blur out the 911 footage? i think everybody has seen the videos so why censor it?

    • @PeatBogGuy
      @PeatBogGuy 9 дней назад +2

      RUclips isn’t a fan of people using the footage for some reason, I’ve seen a lot of people have to censor it to avoid age restrictions and/or demonetisation

  • @sarahbryant8768
    @sarahbryant8768 Месяц назад

    am sure the Dubai tower had a massive fire

  • @andrestein6022
    @andrestein6022 2 месяца назад

    Super old videos on the skyscrapers

  • @Kirovets7011
    @Kirovets7011 Месяц назад

    This documentary is very interesting.
    But, from wich year is it? I see the construction of a skyscraper in Moscow, that is due to be completed in 2010!!! Uh....Sorry?! It's 2024 now! So this is very old! Or am i missing something?

  • @bizzirker
    @bizzirker Месяц назад +2

    Again, they forget to mention and explain why the third building , (building 7,,)went down on 9/11. It wasn't "hit" by any plane, so no jet fuel to melt the beams- ?. Duh,,, gee, I don't know!? How did that happen?? 🥴

    • @workouts_2024
      @workouts_2024 Месяц назад

      Think hard. It's not that difficult. Think thermite....

    • @bizzirker
      @bizzirker Месяц назад

      Yep. Plus for 3 months before that, the "Acme" Elevator Co. Was doing "major upgrades"" to the elevator systems. That would be access-

    • @katiebarber407
      @katiebarber407 Месяц назад

      capitalists gonna capitalize on free money. every time. especially when they have enough money to influence governments

    • @theanteaterparadox344
      @theanteaterparadox344 Месяц назад +2

      sorry to disappoint you. The reason is that the damage to the foundation of both towers and the underlying structures did destabilize the foundation of WT 7 as well. There's been a Subway running underneath. All these factors were enough to cause the internal structure of the building to disintegrate over the next hours. It's that simple. But of course, if the tinfoil hat is too tight.......

    • @bizzirker
      @bizzirker Месяц назад

      @@theanteaterparadox344 uh huh. yep. That mustve been where the plane parts went from Shankville and the pentagon. And any videos of a plane hitting the pentagon. ohh! Wait! Breaking news coming in from my tinfoil hat_........Ray Epps cleared, Media and Biden fake laptop prove russians and Trump responsible for all. 87000 irs agents confirm.

  • @Fkjmusic
    @Fkjmusic 2 месяца назад

    Documentary’s like this provide great knowledge to Archtect’s, designers and engineers in this field 🤞

  • @DavidDieni
    @DavidDieni Месяц назад

    The lesson from 9/11 is don't do controlled demolitions while people are still inside the buildings.

  • @themongol2160
    @themongol2160 Месяц назад +1

    why most tunnels are not fitted with exhaust 2 meters incline tube ducts at every 500 meters for every 2Km lenghts or every 250 meters for more than 2Km strectch run of every tunnels regardless of its locations or depth undersea or below mountain

  • @Squirrel-Chaser
    @Squirrel-Chaser Месяц назад

    Margarine is flammable?

    • @Vincent_Sullivan
      @Vincent_Sullivan Месяц назад

      Yes margarine is flammable. Margarine is basically vegetable oil solidified through a process called hydrogenation. It is not very volatile at room temperature so it is not easy to ignite it, but if you heat it it melts to liquid and will start to vaporize. It can then be ignited and once you get it burning it contains a great deal of chemical energy so creates a large amount of heat. Think of a wax candle... At room temperature it is solid but you can start it burning by melting a tiny amount of the wax in the wick with a match.

    • @Rondon68
      @Rondon68 Месяц назад

      @Tyani-s, your not very bright are gou?

    • @Vincent_Sullivan
      @Vincent_Sullivan Месяц назад +1

      @@Rondon68 There is no need for ad hominem attacks. Tyani asked a fair question and I expect a lot of people would not think of margarine as being flammable. It certainly was not considered a dangerous cargo by the people running the tunnel! They have learned better now...
      By the way, I hate to be a grammar Nazi, but your 6 word comment "@Tyani-s, your not very bright are gou?" has 3 errors in it. First, the word you are looking for is "You're", not "your". Since it is at the beginning of a sentence it needs to be capitalized and you need to use the word that is a contraction of "You are" not the word indicating possession. Also the word "you" is spelled with a "y" and not a "g".
      I am sorry to give you this bad news, but perhaps a little more thinking and some proofreading would help you become a better RUclips commenter.

  • @ShannaNL
    @ShannaNL Месяц назад +1

    So, the old safety rooms couldn't cope with a fire of 1.200 degrees raging for 56 hrs.
    So they build new safetyrooms able to cope with 1.000 degrees for 4 hrs.
    Sounds like a comedian made the changes.

    • @megazw7740
      @megazw7740 Месяц назад

      What would you suggest to bridge the difference?

    • @Geeby585
      @Geeby585 Месяц назад +1

      The only smart thing they added were actual escape tunnels that are accessed through the safety rooms and lead to the outside. Why they thought a bunker with no exits was a good idea for the first one they made, is a bit beyond me. I guess that the saying of “every safety regulation is written in blood” can be applied for this tunnel