Transcript
WEBVTT
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Hello everybody, welcome to the Fire Science Show.
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Did you know that some first codification of fire safety countermeasures was brought in the UK in the 1400s and that was like 200 years before the professional firefighting is developed?
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I never realized that fire safety engineering was older than firefighting.
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In a way and this is a type of a fact that you will learn from this episode of the Fire Science Show the direct reason of recording this episode is the 200th birthday of the Scottish Fire Rescue Services.
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So happy birthday, scottish firefighters.
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It's very impressive that your company is 200 years old.
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That's not that many companies in fire safety that would have such track record.
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But this episode is not just about the amazing developments in Edinburgh 200 years ago.
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It's about the history of our discipline, a very, far, far history and a very interesting history.
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Actually I've invited a colleague, a fellow Polish who lives in Scotland, who's a Scottish firefighter, michał Stachowicz, and he is very passionate about the history of firefighting.
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He dug all of those amazing resources about the early beginnings of the firefighting, early beginnings of fire safety engineering, and in this episode we discussed that in depth fire safety engineering, and in this episode we discussed that in depth.
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There's also a third person, james Braidwood, the person who started the Scottish Fire Brigade and then started the London Fire Brigade.
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What a guy that was, and you will learn a lot about that person in the episode.
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He was not just a person organizing the professional firefighting, he was a person who was kind of the first fire safety engineer actually A first fire risk assessor.
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What a persona, and for me it was amazing to discover the history of his life and his achievements.
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This episode contains some fire safety engineering, but it mostly contains fun and joy For those whose passion is fire safety and fire protection engineering.
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After this episode you will have a ton of anecdotes for your informal and formal meetings in the space of fire safety, and I don't think I have to advertise it anymore.
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It was just such a joy to talk with Michal and learn about James Braidwood and the vast history of fire protection in the UK and in Scotland.
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So let's spin the intro and jump into the episode.
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Welcome to the Firesize Show.
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My name is Wojciech Wigrzyński and I will be your host.
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This podcast is brought to you in collaboration with OFR Consultants.
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Ofr is the UK's leading fire risk consultancy.
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Its globally established team has developed a reputation for preeminent fire engineering expertise, with colleagues working across the world to help protect people, property and environment.
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Established in the UK in 2016 as a startup business of two highly experienced fire engineering consultants, the business has grown phenomenally in just seven years, with offices across the country in seven locations, from Edinburgh to Bath, and now employing more than a hundred professionals.
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Colleagues are on a mission to continually explore the challenges that fire creates for clients and society, applying the best research experience and diligence for effective, tailored fire safety solutions.
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In 2024, ofr will grow its team once more and is always keen to hear from industry professionals who would like to collaborate on fire safety futures.
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This year, get in touch at ofrconsultantscom.
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Hello everybody, welcome to the Fire Science Show.
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I have today a colleague from Scotland, a firefighter, michał Stachowicz.
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Hey, michał, good to have you in the podcast, thanks for having me, and I've invited you because there's quite a celebration happening currently at the Scottish Fire and Rescue Service and it's an institution that this year celebrates 200 years of the services.
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Congratulations, happy birthday, scottish Fire and Rescue Services.
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Thank you, thank you, I would say.
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In the space of fire safety and fire safety engineering, there is not very many institutions that could celebrate 200 years of existence.
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So, paying my homage to the fire brigade and professional firefighting.
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I know there's a lot of interesting stories about the origin and the history of the fire brigade in Great Britain and Scotland.
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I would love to hear about them and let's pay a tribute together.
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So where do we start?
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Absolutely.
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So we can go back talking about fire service in the UK.
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We can go back as far as Roman times.
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The first fire brigades, or what we would see today as fire brigades, were actually created in Roman times, during Roman occupation of Britain.
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But those guys were obviously military guys and they were only looking after their own bases, so not available to everybody.
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Then very quickly, or not very quickly, I'm maybe exaggerating A few years.
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A few hundred years later, very, very basic firefighting provisions started popping up, attached to local churches, parishes, usually in rural areas, and that's the not problem with modern firefighting.
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But back then anybody who had a bucket in the house could call themselves a firefighter okay uh, it was very now.
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Now this, everyone can call themselves a fire safety engineer.
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It it's also not regulated.
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There's still room to improve, you don't?
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even need a bucket.
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So back then, whenever there was a fire, funnily enough it was still thought, even in the 1800s, that a big fire in the city was something caused by the higher power, probably a god that would send punishment on the city because somebody didn't observe sabbath or something.
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But back then, as if the fire happened, everybody volunteered their services.
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They would come together with their buckets and try to do something.
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Obviously it wasn't ideal and usually it was only to protect neighboring properties because there was no way they could actually put out the fire of the building that was affected.
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Absolutely.
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As an important note, it's also the age of urban configurations.
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So Great Britain, of course, the Great Fire of London 1666, that's probably the most well-known large fire in the world, but pretty much in those years every single city had the great fire of XYZ city, like literally every single city in the world burned down at some point right.
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Yeah, absolutely, we had a great fire of Edinburgh in 1824.
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So yeah, you're very right on that.
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So those collective experiences from those great fires and trying to fight those fires, they must have issued a need to change, like people were not sitting down and waiting until they burned down again.
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At some point they had to realize there are better and worse ways to build their cities or homes and there are better and worse ways to fight the fires.
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Can you indicate the beginning of, let's say, professionalization of this fire service of prevention?
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Yes.
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So before we can talk about the professional fire brigades, we can definitely talk about attempts to limit number of fires by legislation.
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So the first time we see any mention of fire prevention in legislation was the Scottish Act of 1426.
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1426?
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.
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Yeah, that was the first mention of fire prevention measures.
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So no hemp or straw to be stored anywhere near fires.
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Any people selling those things had to keep them away from fires and were not allowed to use any lanterns or candles in the vicinity.
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You were forbidden to carry naked flame from house to house.
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It had to be enclosed in some kind of lantern, and the houses in Edinburgh were only allowed to be roofed by slate or stone and not straw, which was very popular down south in England.
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Also, in the late 17th century there was another act that limited the number of stories within the building to five.
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Okay.
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Edinburgh due to its geography.
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I don't know if you've ever been to Edinburgh.
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Not yet, but it's coming next year.
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It was built on a hill and the main street that used to be basically the whole city back in those days.
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The front of the buildings on that main street it's called Royal Mile are usually about five or six stories high, but on the back they can be 10 or 11.
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So Edinburgh was one of the first places in the world that you could say had high-rise buildings and they were up to 14 stories high back in 1600s.
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So then when the act limited them to five, obviously it did not work backwards, so it was only the new build that were limited to five stories, so all the older ones still remained and obviously there was no any fire safety measures within them, which would have been very, very challenging for the any firefighting attempts back then to deliver the water to the 14 story building.
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Of course, Even today it's like Exactly.
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We would have problems today and back then with their hand pumps and everything.
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It would be impossible.
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One of the more interesting things as well in 1681, there was a first water main laid down in Edinburgh, so we had public water available and there was a provision for the drawing of that water in cases of fire.
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So we had three inch water main.
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And that was in 1681.
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And then it was at the time when, obviously, it was upgraded and more of them were popping up around the city.
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Hopefully, yeah three inches in the biggest.
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And I brought up the Great Fire of London.
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That must have been a massive, even in the entire Great Britain, or entire world probably, at that point.
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So did it bring any substantial changes to to how fires were treated, or or we're just making a big deal right now out of it because it's the best documented and no, it was definitely, definitely wiped a big part of london, despite there was not that many casualties.
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A lot of buildings were affected and it created a lot of homeless people.
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And, purely due to business sense, something had to be done and on the back of that, insurance companies started creating their own fire brigades.
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So there will be no training provided to the firemen, as they were then called, or any special equipment apart from hand pumps.
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So these insurance fire brigades started popping up immediately after the Great Fire of London, so late 1600s, and even within London there was plenty of them.
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There was probably 20 or 30 within London itself.
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How does an insurance fire brigade work?
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So insurance fire brigade, they would provide you.
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If you wanted a policy, they would provide you.
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If you wanted a policy, they would provide you with the fire mark, which was a picture, essentially.
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I actually got one somewhere, it's in my garage, it's a.
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It's a mark that you attach to the front of your property and that told the fire brigade or everybody, everybody that you are insured with that company and in case of fire, they would arrive eventually because obviously they weren't that quick, and attempt to put the fire out.
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However, if you had, in your building, insured with different company than the one that arrived, they wouldn't have put the fire out.
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Okay, really.
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Also, they would then attempt to sell you the other policy with their company if you want them to put the fire out.
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So there is a film called Gangs of New York with Leonardo DiCaprio, daniel Day-Lewis, and in that film although the scenes in the film picture New York of, I think, mid-1800s, but there is a scene where two fire brigades are coming to a house fire and what is happening?
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They obviously working against each other.
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One is hiding the hydrant from another so the other one can't use it, and then they start fighting among each other and apparently that was very common, that the fire brigades would turn up, and if they were rival fire brigades they would just fighting among each other.
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And apparently that was very common, that the fire brigade would turn up and if they were rival fire brigades they would just start fighting each other.
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Who's got the right to put that fire out, thus claiming some money?
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So it wasn't perfect.
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Let's put it that way it was not perfect.
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Yeah, I mean, to some extent it's kind of funny in the modern context.
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You know, and I know a lot of firefighters and they are like the nicest people I know, like really putting their lives on the line to save others, driven by passion.
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I don't know a single firefighter who would go into the profession because of profit, Like literally, I don't know a single one.
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And yet this world looks like completely opposite, like a business model of protecting.
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It absolutely was a business model.
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You know probably just think of insurance companies of today.
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You know they will not do anything that will not provide some profit for them sorry, but an interesting observation is is that if the fire brigades in a way formed underneath the disinsurance companies after the great fire of london, perhaps some of them were somewhere existing before.
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Maybe I don't know, but this is like late 1600s and the first acts were for the fire protection.
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Basically were 200 years earlier.
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It seems that fire engineering has preceded fire service.
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That's an interesting observation.
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I've never realized that that could be the case.
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I always thought that fire engineering was kind of a response to firefighters' needs and the need to reduce the damage as an outcome of the industrial revolution.
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Yeah, you're absolutely right.
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There was a lot of in the, let's say, preceding 200 years to creation of insurance fire brigades.
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There was a lot of acts both in Scotland and in England listing those preventative measures and materials that the houses could be built from the distance between the houses.
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All that stuff was already.
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The foundation was being laid Because the firefighting force was so poor or non-existent in the majority of cities they had to do something to limit the spread of fire and the consequences from fires.
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I wonder if anyone ever studied this properly, because you know, in the modern fire engineering there is this underlying assumption that eventually you will have the guardians angels come in, you know, and put the fire down.
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The concept of fire resistance is highly in many legislations.
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It would be connected to the fact that the firefighters can arrive to the scene and stop the fire, the concept of compartmentation, that the fire will not spread beyond.
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That's also related to the fact that you can secure the perimeter.
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I've once read, if I recall it correctly, the reasoning for.
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I don't know if you have that in UK, but in Poland if you have a wall of 60 minutes, you can put 30 minute doors in that like half their fire resistance.
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Maybe that's a Polish thing, but I've heard a justification for that coming from, apparently Sweden, where they said it's easier to fight fire in the doorway.
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That's why perhaps half of that would be safe enough.
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And also one more example of historical fire provisions that was quite interesting for us to discover, us as fire safety engineers, when we were on an SFP conference in Copenhagen this year.
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There was an SFP performance-based conference in Copenhagen.
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The day before the conference, that big building burned down the burson, the, the big historical building in the middle of copenhagen from 1600s and we in during the conference, we we had a fire chief of copenhagen come on the last day of the conference and gave a very powerful speech about that that fire and their response.
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And one thing that he mentioned was that apparently 1800s or something, someone has put a firewall in that building, you know, because they were uncomfortable with the fact that the entire building was one compartment.
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So they've built a firewall in that and that was the exact firewall at which they established perimeter this year when they were fighting the fire.
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So those provisions actually were put in place a few hundred years ago and work today perfectly, showing the power of good engineering.
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Very interesting case.
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I wonder if more examples of those early provisions are known.
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Because now to close my chain of thoughts, because back then you could not rely on fire brigade to come and put out the fire, so if there was any fire engineering it would have been like self-sustaining in a way when we'll get to James Braidwood and London Fire Brigade, or London Fire Establishment as it was called back then.
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Braidwood was requested many a time to attend different places as an expert within the field, as the only expert really known to assess them under the risk of fire, and he recommended in a lot of dockyard buildings in London he was recommending dividing walls within the big warehouses or limit the number of flammable goods stored or the maximum quantity should be stored within any one place.
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So he was making those kind of very early risk assessments or fire risk assessments to help the landlords or the owners to manage their properties safely, and he was writing this all down.
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There is a book written by Braidwood Fire Prevention and Fire Extinction and he was writing this all down.
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You know there is a book written by Braidwood Fire Prevention and Fire Extinction and he writes all those things down in that book.
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It's a really good book and it's not very big, so it's a nice read.
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Probably it must be scanned and available online somewhere.
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Yes, yes, it probably can be found for free.
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I'm going to check it out If it's available.
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I'm going gonna link the link into the show notes for the podcast because it's I'm very interested in in looking into how this fire prevention measures.
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Look at the earliest phase of fire safety science and engineering.
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After all, it's a fire science show.
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We covered the entirety of it.
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Anyway, let's move to edinburgh, because so far we were discussing uk in general, different parts of UK, different regulations at different points of time.
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Now let's move exactly 200 years ago.
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What happens and how the first fire brigade is formed and how is it different from what was existing at that time?
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What's the innovation in here?
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So, as we mentioned before, there was a series of serious.
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Series of serious.
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That doesn't sound right, but there was a lot of serious fires in Edinburgh around early 1800s, and then there was what we call Great Fire of Edinburgh in 1824.
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And they were attempts to create some kind of firefighting force within the city under the command of one person that would supersede the insurance company's fire brigades.
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So you had insurance, fire brigades in Edinburgh.
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Yes, it was not just a London thing.
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Yes, exactly the same, Exactly.
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There were actually even some big insurance companies who had operated in both London and Edinburgh the same companies.
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So, yeah, they were in Liverpool, in every big city.
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Eventually it spread and some of them were purely Scottish, some of them were working along the whole of the UK.
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Okay, so the order was written up to create some kind of establishment that will take care of it, some kind of establishment that will take care of it, and the fire insurance companies chipped in some money towards it and the city added some money and what they created was Edinburgh Fire Engine Establishment, and they created that in 1824.
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And the first person who was to be in charge of it was nominated to be James Braidwood.
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He was only 24 years old at the time.
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You mentioned Braidwood before, and it's a person that this episode will be a lot about, so maybe can you give me a brief idea of who he was as a person.
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So he was born in 1800.
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So he was 24 when the Fibre created.
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He was a surveyor, so he trained in building construction and his dad was a thing a cabinet maker or carpenter or something like that, and so from the youngest age he was around tools and familiar with building construction and knew the city very well and also he was born in edinburgh yes, yes, he was.
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yeah, uh, his uncle was one of the senior people in one of the insurance companies.
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I'm not implying that he got a job because he knew somebody, but obviously must have been the best choice at the time.
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It's not confirmed how he was chosen to lead, but he was and it was a very good appointment Because up until this point, insurance companies, whether it's in London or Edinburgh, were usually fighting fires from the outside.
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You see old pictures, big jets of water being shot from the street into the building and he transformed that approach that the fires should be fought from the inside.
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So he's kind of like a godfather of compartment fire.
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He came up with the idea that fire is fueled by oxygen, and the more we can close it down, the lesser the rate of development is fueled by oxygen, and the more we can close it down, the lesser the rate of development is going to be.
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That's super interesting because if you're talking about early 1800s, that's not long after Lavoisier's discovery of oxygen.
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After all, I think that was late 18th century.
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Whether he talked purely oxygen or air, you know, is obviously….
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Yeah, but the previous theory was the theory of phlogiston, so that was the previous paradigm.
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Okay, that was a completely different understanding of how fires behave.
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It was assumed that a fire comes from a substance that's called the phlogiston, and that's basically the fuel.
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So it's like a complete paradigm shift and that's basically the fuel.
00:23:46.079 --> 00:23:49.263
So it is like a complete paradigm shift when the oxygen was discovered in air and the fact connected that it's related to the burning process.
00:23:49.263 --> 00:24:00.457
So when you say that he observed that fires at large scale could have been connected with this newly discovered substance, in this newly discovered chemical context, it also means that he has to be well-educated and quite a clever person.
00:24:00.457 --> 00:24:05.730
Because we're talking about top discoveries of his time right.
00:24:06.271 --> 00:24:15.845
Yes, absolutely, and he briefed all his firefighters and police officers at the time because there was a lot more police officers in the city than there was firefighters.
00:24:19.840 --> 00:24:42.946
Probably to stop the firefighters from fighting, that as soon as the fire is discovered, whoever discovers it, should go and close all the doors and windows within the place where the fire is happening to limit the availability of oxygen or air and then give the fire brigade time to, to, to make their preparations and arrive and all that so.
00:24:42.967 --> 00:24:44.769
So that's one of his, his big things.
00:24:44.769 --> 00:25:01.847
In his book, his first book, in 1830, he published a book because he was looking for ideas, he was looking for concepts, and he couldn't find anything in English language, written English language, talking about the fire service or putting out fires.
00:25:01.847 --> 00:25:05.061
So he decided in 1830 to write his own book.
00:25:05.061 --> 00:25:18.393
It was called On Construction of Fire Engines and Apparatus, the Training of Firemen and Methods of Proceeding in Cases of Fire, and he talks a lot there about the dependency between the fire and air.
00:25:18.393 --> 00:25:27.760
What he makes the point of is close down the building and get your water as close to the seat of the fire as you can.
00:25:27.760 --> 00:25:44.763
So also he observed that the layer of fresh air is always available just above the floor, which obviously back then the firefighters didn't have any breathing apparatus or any equipment like that, so they would go into the fires just breathing normal air obviously.
00:25:44.763 --> 00:25:51.626
So he recommended they should stay as low as possible, because that's where the fresh air is.
00:25:52.119 --> 00:25:58.147
Wow, so seriously the observations you are giving me right now.
00:25:58.147 --> 00:26:07.059
This is on par with I don't know other loveless observations of algorithms 100 years before computers.
00:26:07.421 --> 00:26:13.794
This is how I see it, you know, because if you say he observed a layer, probably he did not name it like that.
00:26:13.794 --> 00:26:20.973
Maybe he did, but if he observed the layered behavior, this is something we didn't know until 1956, kawagoe.
00:26:20.973 --> 00:26:25.451
That was the first observation of layers and formulation of zones in fires.
00:26:25.451 --> 00:26:43.807
Apparently, kawagoe went to US, to California, and argued there whether those layers exist or not, and Kawagoe was also the first one to, or Kawagoe proposed a model to establish what was the heat release rate based on the flow through openings.
00:26:43.807 --> 00:26:52.767
So what you now say, that observations of Braidwood precede that by a hundred years, that's like that's outstanding.
00:26:53.167 --> 00:26:55.564
I will give you a little quote out of his book.
00:26:55.564 --> 00:26:56.826
So he says a layer of fresh air Outstanding.
00:26:56.826 --> 00:27:01.057
I will give you a little quote out of his book about that.
00:27:01.057 --> 00:27:05.378
So he says a layer of fresh air is almost always to be dependent on from six to 12 inches from the floor.
00:27:05.378 --> 00:27:07.467
And then he describes his experience.
00:27:07.467 --> 00:27:13.269
The smoke was rolling in thick, heavy masses which prevented me from seeing six inches before me.
00:27:13.269 --> 00:27:18.962
I immediately got down on the floor, above which the air seemed to be remarkably clear and bright.
00:27:19.404 --> 00:27:22.067
Wow, that's hundreds of years before Kamigoy.
00:27:22.067 --> 00:27:24.705
This is outstanding.
00:27:24.705 --> 00:27:26.811
Wow, what a lad.
00:27:30.981 --> 00:27:47.713
So, and then I've got one more about the air exclusion, and he says the door should be kept shut while the water is being brought and the air excluded as much as possible, as the fire burns exactly in proportion to the quantity of air which it receives.
00:27:47.713 --> 00:27:49.787
Wow, outstanding.
00:27:49.787 --> 00:27:51.005
So he was a smart guy.
00:27:51.005 --> 00:27:51.828
He was a smart guy.
00:27:52.362 --> 00:27:53.707
Sounds like quite a clever guy.
00:27:53.707 --> 00:28:04.134
I mean it's interesting that from observations and just experiencing those fires you can create such a powerful technical rules actually that work.
00:28:04.134 --> 00:28:13.992
I'm not sure if it would work today because of the prevalence of plastic materials and our buildings tend to be much larger and compartments are much larger than they have been in 18th century.
00:28:13.992 --> 00:28:15.624
That's also something people don't appreciate.
00:28:15.624 --> 00:28:18.471
How much air there is in a car park or in a shopping mall.
00:28:18.471 --> 00:28:22.279
Closing the doors will not help that much really.
00:28:22.279 --> 00:28:30.433
But if you're talking about small compartments in a small building, that can actually be quite sufficiently used to slow down the fire at least.
00:28:30.473 --> 00:28:31.134
Yeah, absolutely.
00:28:31.134 --> 00:28:34.644
You know, it's still, I think, within the domestic environment.
00:28:34.644 --> 00:28:41.194
This still absolutely holds true and is one of our bases for our learning today.
00:28:41.194 --> 00:28:44.849
So he was way, way ahead of his time in that respect.
00:28:45.361 --> 00:28:46.385
Another thing about Braidwood.