053 - The number one skill to thrive as an FSE I've learnt in 1 year of podcasting
It has been one year since I started this show. I've promised you that we will learn Fire Safety Engineering together, and today comes a great time to reflect on some lessons learnt. In this episode, I will take you on a short journey through some most insightful moments in the show, that allowed me to identify the number one skill needed to thrive as a fire protection engineer.
What is that skill? Well press the play button and find it for yourself! The answer is 35 minutes away, and I promise this will not be a time wasted.
In this episode I have repurposed parts of other excellent interviews, each of them worth a listen (or a re-listen):
- https://www.firescienceshow.com/018-engineered-timber-with-danny-hopkin/
- https://www.firescienceshow.com/015-global-view-on-the-fire-safety-from-a-starchitect-perpective-with-benjamin-ralph/
- https://www.firescienceshow.com/023-risk-assessment-with-maximum-allowable-damage-with-jaime-cadena-gomez-and-david-lange/
- https://www.firescienceshow.com/021-resilient-structural-design-for-firefighter-safety-with-ali-ashrafi/
- https://www.firescienceshow.com/048-car-parks-design-fires-and-the-broad-world-of-fire-science-with-mike-spearpoint/
- https://www.firescienceshow.com/024-whos-a-fire-safety-engineer-with-jimmy-jonsson/
----
The Fire Science Show is produced by the Fire Science Media in collaboration with OFR Consultants. Thank you to the podcast sponsor for their continuous support towards our mission.
Available Results
Generated results are saved to the knowledge database for reuse and search.
Extract Knowledge
Pick what you want extracted first. Model, scope, and chapter options appear after a template is selected.
Transcript
WEBVTT 00:00:23.492 --> 00:00:24.062 Hello everybody. 00:00:24.062 --> 00:00:26.282 And welcome to the Fire Science Show. 00:00:26.371 --> 00:00:27.871 Episode 53. 00:00:28.321 --> 00:00:30.902 My name is Wojciech and for the last year. 00:00:31.262 --> 00:00:34.262 I've been interviewing or maybe even interrogating. 00:00:34.771 --> 00:00:42.392 Some leading fire safety experts from world of science engineering industry. 00:00:42.932 --> 00:00:50.682 And other fields that impact ours to ,learn what truly matters in delivering fire safety? 00:00:51.101 --> 00:00:55.661 To building, people, in the environment and our society. 00:00:56.051 --> 00:01:02.448 And I must say I've learned a lot, that it was the mission of the podcast to learn as much as possible. 00:01:02.637 --> 00:01:05.158 And share this learning process with you. 00:01:05.158 --> 00:01:11.007 So maybe you can enjoy it and learn a bit together with me. 00:01:11.278 --> 00:01:14.037 And I must say this year was an amazing effort. 00:01:14.487 --> 00:01:21.117 I've interviewed so many fantastic people and I've broadened my horizons so much. 00:01:21.177 --> 00:01:22.768 I would never expect it. 00:01:23.308 --> 00:01:24.897 So for today's episodes. 00:01:25.105 --> 00:01:29.605 I thought that it's time to summarize some learnings done. 00:01:30.084 --> 00:01:38.784 And try find, identify and tell you the number one thing that I have learned. 00:01:39.426 --> 00:01:41.195 And that thing is. 00:01:41.885 --> 00:01:43.355 Of course, I'm not going to tell you now. 00:01:43.686 --> 00:01:46.025 You have to listen to the episode, but it's worth it. 00:01:46.085 --> 00:01:46.385 Trust me. 00:01:46.763 --> 00:01:53.033 So in this episode, I'm going back to some, all of the best podcasts moments that will help me tell you this story. 00:01:53.572 --> 00:01:57.966 Of why this particular thing is, in my opinion, The number one. 00:01:58.356 --> 00:01:59.766 Learning from the podcast. 00:02:00.007 --> 00:02:05.227 I actually, maybe even number one skill, we need to have to create a fire safe world. 00:02:05.826 --> 00:02:06.906 To start the journey. 00:02:07.057 --> 00:02:07.656 Let's. 00:02:07.697 --> 00:02:10.288 Touch the subject of timber in fire. 00:02:10.649 --> 00:02:14.055 That has been the absolutely number one topic. 00:02:14.055 --> 00:02:21.669 In the podcast so far with the timber episodes with Danny Hopkin with, uh, Felix Wiesner with Daniel, Brandon. 00:02:22.150 --> 00:02:25.960 They all together, generated so much traffic in the podcast. 00:02:25.990 --> 00:02:27.189 Like nothing else. 00:02:27.699 --> 00:02:29.530 And there's a good reason for that. 00:02:29.650 --> 00:02:33.400 You know, timbers, exciting timbers, new timbers. 00:02:33.430 --> 00:02:34.060 Interesting. 00:02:34.060 --> 00:02:38.312 And everyone is talking about it and no one really has a great idea. 00:02:38.316 --> 00:02:39.515 How to do it holistically. 00:02:39.605 --> 00:02:43.116 Well, maybe we do, but it's not that we're listened. 00:02:43.746 --> 00:02:44.705 That's that's the kind of. 00:02:44.824 --> 00:02:46.204 Funny twist in here. 00:02:46.854 --> 00:03:00.894 And to start with timber and may be the problems that are generated in the world, the challenges that lie within, I would like to give the voice to Danny who has identified it fairly well, in my opinion. 00:03:01.328 --> 00:03:09.381 And as you will hear the issue lies not only within the knowledge of science, but actually in the environment we've created. 00:03:09.711 --> 00:03:15.471 So, yeah, he is Danny Hopkin from episode 18 on engineered timber and fire. 00:03:16.381 --> 00:03:25.020 So the first challenge I guess, is in understanding the remit of the common codes and standards that we apply in design. 00:03:25.070 --> 00:03:29.633 And I think a real challenge is the competency of the people designing buildings. 00:03:29.633 --> 00:03:44.919 So we have codes and standards that in their origin have come from non-combustible buildings that they were designed to deliver an adequate level of safety for concrete enclosures, for steel frames, for brick work, for other forms of masonry. 00:03:44.968 --> 00:03:55.598 And so a lot of concepts we have in building design things like fire resistance, as you mentioned are premised on the structure not becoming involved as a source of fuel. 00:03:55.840 --> 00:04:11.081 The very early mass timber buildings, particularly in the UK kind of assumed that those rules and guidance that apply for structures that don't burn can simply be extrapolated to structures where they're contributing as a source of fuel. 00:04:11.171 --> 00:04:15.651 And we know that's absolutely not true, and there's been some great papers have been written on it. 00:04:15.681 --> 00:04:22.041 You've got the "We need to talk about timber" a lecture by Angus Law and the corresponding paper in the structural engineer. 00:04:22.841 --> 00:04:27.322 So the first challenge has been in educating people and understanding. 00:04:28.021 --> 00:04:38.372 When they're applying a code or a standard, what they're getting and where the scope of that ultimately run runs its course and where timber fits into that discussion. 00:04:38.473 --> 00:04:42.649 and that's not been as easy or challenge to address as you might think. 00:04:42.678 --> 00:04:44.778 And I think that's for a couple of reasons. 00:04:45.209 --> 00:04:52.858 Structural or fire engineers to start with to my mind at least not actually that profficient at dealing with combustion problems. 00:04:53.428 --> 00:05:09.514 So a lot of fire engineering consultants at least kind of operate in this little bubble of I think Angus, Lou and Graham Spinardi, defined it as sort of code speak there, you develop an expertise being able to read back what codes and standards are telling you to do. 00:05:09.723 --> 00:05:19.673 So there was almost like a memorizing and interpretation of a series of rules and regurgitating those bats and design teams Which doesn't help you design mass timber buildings. 00:05:19.673 --> 00:05:22.954 You have to understand the fire dynamics quite well. 00:05:22.954 --> 00:05:30.358 And you have to have definitely a good understanding of the combustion processes, so already, you may see where this is going. 00:05:30.869 --> 00:05:36.538 Fire science and fire engineering is inherently a complicated matter. 00:05:37.139 --> 00:05:40.139 The matter that is difficult to understand. 00:05:40.559 --> 00:05:43.468 Even by great scientists. 00:05:43.499 --> 00:05:45.718 , none of us understands the whole of it. 00:05:46.014 --> 00:05:50.757 And yet we are expected to give design. 00:05:51.021 --> 00:05:52.221 That is fire safe. 00:05:52.521 --> 00:06:00.922 We're expected to craft buildings that will not burn and will not take lives when they're burned and will not endanger the environment. 00:06:01.461 --> 00:06:02.242 And so on. 00:06:02.721 --> 00:06:13.055 So in order to fulfill this goal, to fulfill this role in our societies, we've build up this masterful set of codes and standards. 00:06:13.596 --> 00:06:21.136 Which at some point even overtook our ability to engineer, as Danny mentioned, code speak has developed. 00:06:21.495 --> 00:06:21.975 Where. 00:06:22.365 --> 00:06:28.725 You read the code and argue about what this clause of the code means and how to fulfill it. 00:06:28.725 --> 00:06:32.235 And people would find creative ways to go around it. 00:06:32.716 --> 00:06:37.968 People will do literally anything to go above the code to gain a. 00:06:37.990 --> 00:06:42.521 Competitive advantage over their competitors because that sometimes makes a breaks. 00:06:42.670 --> 00:06:45.002 The contracts awarded in the built industry. 00:06:45.451 --> 00:06:49.711 You know, I I've once heard someone told me it's a Chinese, uh, Saying. 00:06:50.192 --> 00:06:51.661 I'm not sure if that's the origin. 00:06:51.992 --> 00:06:53.942 But it goes like this. 00:06:54.031 --> 00:06:55.562 The law is like a fence. 00:06:56.012 --> 00:06:57.601 The tiger will jump over it. 00:06:57.661 --> 00:06:57.721 The. 00:06:57.752 --> 00:07:03.422 The snake will sneak under it, but at least the cattle does not spread. 00:07:03.992 --> 00:07:15.122 And in a way, we see that every day, tigers jumping above our codes and guidelines, trying to push for solutions, some sneaky ones, trying to go around them. 00:07:15.151 --> 00:07:16.262 Confusing everyone. 00:07:16.711 --> 00:07:21.721 And most of us engineers who do not really have a better choice than just follow this. 00:07:21.812 --> 00:07:23.341 These guidelines, but. 00:07:23.851 --> 00:07:28.711 Thus following the guidelines really provides safety as we expected. 00:07:29.252 --> 00:07:34.201 Is this sufficient to really build a fire safe building? 00:07:34.201 --> 00:07:35.612 Is it sufficient to design it? 00:07:36.302 --> 00:07:45.389 That's a really tough question because you're not having a wall of fire that you have to design and be done with it. 00:07:45.778 --> 00:07:49.005 your design affects everything in the building. 00:07:49.353 --> 00:07:59.507 And here, let me give voice to Ali Ashrafi my guest in episode 21, ali had a brilliant talk about resilient fire design with firefighters in mind. 00:07:59.987 --> 00:08:02.267 But this aspect of how do we build buildings? 00:08:02.267 --> 00:08:05.927 How do we design was always there in the background of his talk. 00:08:05.927 --> 00:08:10.788 And this is a fragment that really resonates with what I'm trying to. 00:08:10.836 --> 00:08:12.855 Convey in this episode. 00:08:13.559 --> 00:08:17.478 Design is never done in a vacuum. 00:08:17.928 --> 00:08:18.228 Right. 00:08:18.228 --> 00:08:26.778 So when we come to do the design, it is within a specific jurisdiction and there are codes and standards and there's a reason for that. 00:08:26.809 --> 00:08:39.649 When you look at the of how those codes and guidances are put together, you see all these stakeholders coming to the table and having the discussion, because that should happen. 00:08:39.989 --> 00:08:41.379 That's absolutely right. 00:08:42.639 --> 00:08:48.318 Each of these stakeholders has this perspective that's relevant and valuable. 00:08:48.859 --> 00:08:53.379 And it's important to have those dialogues so that they are explicit about that. 00:08:53.438 --> 00:08:57.339 And for fire, just having the question is very important. 00:08:57.818 --> 00:09:06.099 What, one of the things I'm hoping to highlight as no one asks that question of what the objective is, right? 00:09:06.519 --> 00:09:11.589 You are doing certain things in the code and there's a presumption of the level of safety. 00:09:11.589 --> 00:09:12.938 And certainly there's a level of. 00:09:13.793 --> 00:09:15.833 Certainly for the more common buildings. 00:09:16.346 --> 00:09:17.397 That kind of resonates. 00:09:17.397 --> 00:09:17.697 Huh? 00:09:18.206 --> 00:09:26.937 And Ali went even further telling me about these expertise and the experience with the design. 00:09:27.206 --> 00:09:30.716 As you try to design more and more, move away from the code speak. 00:09:30.745 --> 00:09:34.796 You will meet more complex issues, big problems, big issues. 00:09:35.336 --> 00:09:37.416 So to put it in a better context. 00:09:37.655 --> 00:09:47.076 We were discussing the role of fire resistance as a methods to distinguish the properties of structural components of buildings, how, how it works, how it's made. 00:09:47.436 --> 00:09:57.666 What makes a fire test and what's the output of it, which is the fire resistance class in minutes, but does it truly convey safety? 00:09:58.246 --> 00:10:01.996 Does it lead to us meeting our objective, whatever our objectives are. 00:10:02.537 --> 00:10:06.677 Let's listen to Ali for once again, on his take on this topic. 00:10:06.738 --> 00:10:12.498 By training I'm a structural engineer and when I'm looking at fire, that's where my expertise lies. 00:10:12.498 --> 00:10:16.269 But one thing that is really key here. 00:10:17.450 --> 00:10:20.179 These are complex multifaceted issues. 00:10:20.240 --> 00:10:29.389 And so no matter where each of us is coming from what the discipline is, we should be designing in the context of overall safety goals. 00:10:29.720 --> 00:10:32.059 And so there should be dialogue between these designs. 00:10:32.059 --> 00:10:35.629 These are not individual pieces of design, they should talk to each other. 00:10:35.629 --> 00:10:39.019 And the way that most designs are today, that doesn't happen. 00:10:39.607 --> 00:10:50.577 Yeah, I want to add that when it comes to safety of destructure in fire, what we do right today, the common practice, which is a prescriptive practice. 00:10:50.638 --> 00:10:56.967 And you mentioned it's based on the fire resistance terminology is really not explicit. 00:10:56.967 --> 00:11:06.648 So in a fire resistance terminology, you take specific pieces of a building and you put them in a furnace for some duration and you say itpassed and thats great. 00:11:07.278 --> 00:11:14.128 But that actually doesn't tell you anything about how the building as a system is going to respond to the fire. 00:11:14.727 --> 00:11:27.427 And if I want to bring it back to the question of firefighters safety, I see really three things that are key and they should speak to each other. 00:11:27.878 --> 00:11:31.988 One of them is stability of the building. 00:11:32.798 --> 00:11:36.817 The building is the battlefield where you're fighting a fire. 00:11:37.658 --> 00:11:42.668 If someone's going in, they need to make sure that the building will not collapse in them. 00:11:42.707 --> 00:11:43.967 That is the baseline, right? 00:11:43.967 --> 00:11:46.788 So the structural stability is a really important piece. 00:11:47.418 --> 00:11:50.238 The second piece is evacuation, right? 00:11:50.238 --> 00:11:53.118 So we're doing all of this because we want to save lives. 00:11:53.890 --> 00:11:54.850 So here we go. 00:11:54.941 --> 00:11:56.441 We have some objectives. 00:11:56.471 --> 00:11:58.270 We want the firefighters to be safe. 00:11:58.541 --> 00:12:07.091 We won't, people just keep the building and there's many more structural stability, economic prosperity, business continuity, and other things that was rhymed with this. 00:12:07.331 --> 00:12:08.831 But yeah, , we have goals. 00:12:08.831 --> 00:12:10.841 We have objectives and we have codes. 00:12:10.870 --> 00:12:14.980 We have laws that tell us how to design. 00:12:15.130 --> 00:12:17.171 We run into. 00:12:17.591 --> 00:12:25.150 Problematic issues where our codes demand from us, something that other engineers would really not like to do. 00:12:25.750 --> 00:12:31.660 And I mean, it's already hard within your own ecosystem within your own country. 00:12:31.660 --> 00:12:32.410 Most likely. 00:12:32.831 --> 00:12:34.811 But once you start. 00:12:34.865 --> 00:12:35.975 Crossing borders. 00:12:36.424 --> 00:12:43.715 Once you start looking at fire safety as a sort of a global phenomenon or global need, maybe. 00:12:44.345 --> 00:12:47.554 You start to notice that this challenges. 00:12:48.125 --> 00:12:53.975 They are everywhere and everywhere they're different and it makes engineering. 00:12:54.304 --> 00:12:56.254 Really hard for those. 00:12:56.705 --> 00:12:59.825 Who try to pursue international careers. 00:13:00.424 --> 00:13:01.835 And novel problems. 00:13:02.315 --> 00:13:04.894 Open and over challenges or cure. 00:13:05.465 --> 00:13:07.304 You have to deal with things. 00:13:07.605 --> 00:13:12.914 You sometimes never deal within your own country or legislative framework. 00:13:13.067 --> 00:13:15.716 But then again, If you think about it, the fire is the same. 00:13:16.196 --> 00:13:20.696 There's no difference in fire in Poland versus the one in UK. 00:13:20.816 --> 00:13:25.586 Well, maybe there are, but not at the groundbreaking level. 00:13:25.885 --> 00:13:29.395 And that was something I've discussed with Benjamin Ralph. 00:13:29.725 --> 00:13:32.995 Um, the head of fire safety at Foster plus partners. 00:13:33.625 --> 00:13:40.166 In episode Ralph it was a great talk with someone who was educated as a fire engineered. 00:13:40.495 --> 00:13:44.785 Someone who has been a fire scientist for a good part of his life. 00:13:45.326 --> 00:13:52.265 And then ventured into huge architectural company to build a career in fire engineering worldwide. 00:13:52.716 --> 00:13:54.936 Bringing a very unique view to the field. 00:13:55.326 --> 00:14:01.686 So yeah, you need to listen to what Ben had to say about internationalization of fire problems. 00:14:02.552 --> 00:14:10.669 So it's interesting because people will often say I'm in meetings and workshops and sort of a little bit flippantly of wild fires everywhere all over the world. 00:14:11.210 --> 00:14:13.759 And you could go a step further than that. 00:14:13.759 --> 00:14:15.769 And you could say fire science is the same. 00:14:16.220 --> 00:14:20.360 Like you say, the, , you know, the universal constants the same, and he released right. 00:14:20.360 --> 00:14:22.070 Per unit areas give or take the same. 00:14:22.070 --> 00:14:22.309 Okay. 00:14:22.309 --> 00:14:24.590 Furnishings might be a little bit different or whatever it is. 00:14:25.190 --> 00:14:25.519 Yes. 00:14:25.519 --> 00:14:28.340 Fire science is the same, but I would say that. 00:14:29.105 --> 00:14:31.144 As soon as you start to talk about safety. 00:14:31.772 --> 00:14:35.851 And you start to talk about definitely design, but safety and risk. 00:14:35.851 --> 00:14:41.042 And you start to get into a world of acceptability and reasonability. 00:14:41.312 --> 00:14:48.572 And those things change, you know, acceptance of risk changes, internationally, and culture changes internationally. 00:14:48.991 --> 00:14:52.892 So I'd say that fire science is constant wherever you are, but fire safe. 00:14:53.572 --> 00:15:02.841 Does change combine with that very differing approaches with respect to the legal side of fire. 00:15:03.052 --> 00:15:09.135 So, you know, clients and countries all over the world have taken a whole bunch of different ways. 00:15:09.586 --> 00:15:25.534 Um, some extraordinarily prescriptive based, uh, tick the box, you know, implicit safety type, building design, and then some on the other side, I mean, not necessarily explicit safety, but perform well, that's it? 00:15:25.565 --> 00:15:25.955 Yeah. 00:15:26.585 --> 00:15:26.855 Yeah. 00:15:27.065 --> 00:15:28.894 and sort of everywhere in between really. 00:15:29.303 --> 00:15:33.443 And to go deeper on this subject of international fire safety problems. 00:15:33.714 --> 00:15:39.817 It's not only the countries would have different codes and standards, but they even have different preferences. 00:15:40.057 --> 00:15:45.126 There are topics that are important in one part of the world, which would not be that important in another. 00:15:45.636 --> 00:15:46.897 There are things. 00:15:46.927 --> 00:15:53.576 Related to this fundamental expected level of safety that are completely different from country to country. 00:15:53.822 --> 00:16:00.932 There's one thing you realize very quickly as well, when you start to work, um, you know, dip your toe all over the world. 00:16:01.352 --> 00:16:04.082 There are things that some countries and by that. 00:16:04.927 --> 00:16:09.337 Broadly code's really some countries really care about. 00:16:09.337 --> 00:16:17.970 And, um, the level of implicit or explicit safety that's thrown at certain things is much, much higher, in comparison to other parts of the world. 00:16:17.970 --> 00:16:20.940 So a typical example might be here in the UK. 00:16:21.210 --> 00:16:25.350 We now have for the first time in a very long time prescription. 00:16:25.924 --> 00:16:29.105 At law level at legislation level to do with external walls. 00:16:29.434 --> 00:16:34.804 And of course that, you know, that's the lab that came about because of a, um, a terrible tragedy. 00:16:34.894 --> 00:16:38.195 And that's something that's very, very local, very, very specific. 00:16:38.284 --> 00:16:54.024 Whereas you look at other parts of the world, uh, And they really care about compartmentation in carparks for example, because there was a large fire where sadly, a whole bunch of people lost their life in a carpark fire. 00:16:54.024 --> 00:17:00.929 So the idea around design by disaster um, has it has a geographical variability, which is interesting. 00:17:01.200 --> 00:17:11.970 And then, I mean, really one of the key key challenges of my current role is we're an international organization designing, constructing, building all over the world. 00:17:12.480 --> 00:17:16.170 You know what, what's the best solution because there's international variation. 00:17:16.170 --> 00:17:19.660 And if, if there's something that's missed, for whatever reason, uh, local. 00:17:20.700 --> 00:17:26.009 We're in a position to see that we've got that international oversight to ask those questions about, hold on a minute. 00:17:26.430 --> 00:17:34.049 Why, why in this country, can we design a building made of X, Y, Z, you know, those sorts of pretty challenging questions? 00:17:34.049 --> 00:17:36.615 Actually, But that's that make sense? 00:17:37.125 --> 00:17:41.205 Do really have a different safety in different parts of the world. 00:17:41.506 --> 00:17:43.096 We really need our buildings. 00:17:43.576 --> 00:17:48.409 To be bale to different specification everywhere to provide fire safety. 00:17:48.439 --> 00:17:55.788 Well, it seems we do not really have a good measure of what fire safety is and how much of it we need. 00:17:56.388 --> 00:17:58.969 We don't really understand what. 00:17:59.659 --> 00:18:00.709 Influences that. 00:18:00.739 --> 00:18:02.239 And even if we do. 00:18:02.659 --> 00:18:08.929 It's very difficult to put this factors into a meaningful discussion with other stakeholders. 00:18:09.648 --> 00:18:24.709 So in the podcast, I was looking for the Fundations of safety and I've talked with many experts on the risk because that's a field which really tries to go deep on what safety and what's. 00:18:24.828 --> 00:18:25.278 Risk. 00:18:25.278 --> 00:18:27.618 And what hazards are for the building. 00:18:28.068 --> 00:18:33.078 And in one of these discussions, a really great one where in episode 23, I've hosted. 00:18:33.078 --> 00:18:39.048 Jaime Cadena Gomez and David Lange from university of Queensland, we discussed Jaime's approach. 00:18:39.409 --> 00:18:45.048 To risk, which was by defining the maximum allowable damage and interesting concept itself. 00:18:45.409 --> 00:18:46.969 But in that conversation. 00:18:47.568 --> 00:18:48.409 We've touched. 00:18:48.919 --> 00:18:49.278 Uh, furry. 00:18:49.278 --> 00:18:50.028 Interesting. 00:18:50.628 --> 00:18:54.108 Part about the baseline level of safety. 00:18:54.199 --> 00:18:58.759 And let me ask David to tell you what he meant , about that. 00:18:59.042 --> 00:19:01.653 it's almost looking at the inherent risk in a building. 00:19:01.663 --> 00:19:05.853 So it's almost taking a concept from another, from other engineering disciplines to understand what is the inherent risk? 00:19:05.853 --> 00:19:17.982 What is the, when you strip out all of the controls, all of the fire safety features in the building, there are controls that help to reduce the risks they help to manage the, both the consequences and the likelihood of the occurrence of a significant scenario. 00:19:17.982 --> 00:19:20.282 A scenario that challenges the fire safety strategy in the building. 00:19:20.823 --> 00:19:24.873 If you strip all of those out, then what you're left with is the inherent risk that's inside of the building. 00:19:24.873 --> 00:19:26.042 Once everything else has failed. 00:19:26.096 --> 00:19:30.969 And that's, that's really the concept that Jaime's calculated tending towards, I think it's probably the best way to put it. 00:19:31.388 --> 00:19:35.798 Once you've calculated the inherent risk, then you can start to fit back into controls to optimize. 00:19:36.482 --> 00:19:41.853 So there we are a baseline level of safety of a building stripped out of everything. 00:19:42.153 --> 00:19:54.945 Like the most fundamental minimum out of safety, the building architecture and provides We can go only up from there to understand what the building really has to offer in terms of safety. 00:19:55.246 --> 00:19:57.736 But safety is not just a building, you know? 00:19:58.066 --> 00:20:03.855 I had this episode with Brian Meacham episode 20, and I could call it the mother of all. 00:20:04.395 --> 00:20:09.556 Podcast episodes, because it was probably the most meaningful conversation I've had in my life. 00:20:10.155 --> 00:20:13.965 And Brian has positioned fire safety as a social technical system. 00:20:14.566 --> 00:20:22.275 As a system that overlaps is the build environment, the social aspects of the society, the. 00:20:22.755 --> 00:20:24.434 Personal preferences of a person. 00:20:24.765 --> 00:20:26.984 The way, how we design the way, how we build. 00:20:27.494 --> 00:20:29.204 All the things altogether that. 00:20:29.234 --> 00:20:34.724 That leads to the creation of the building and the role that that building has in our society. 00:20:35.234 --> 00:20:36.704 And within that episode. 00:20:37.005 --> 00:20:40.575 Brian has put forward an interesting thought. 00:20:41.085 --> 00:20:43.904 That when we try to. 00:20:43.974 --> 00:20:46.615 Define the level of safety in the building. 00:20:47.095 --> 00:20:50.785 Well, there's quite an uncertain aspect into that. 00:20:50.785 --> 00:20:52.105 And that is humans. 00:20:52.825 --> 00:20:56.275 How we affect the safety of our building. 00:20:56.394 --> 00:21:07.255 Do we even modeled at the, we take it into account and that's quite fundamentally know, especially when you go back to the beginning of the episode and the discussion of timber. 00:21:07.494 --> 00:21:12.595 Where the role of firefighters, as you have heard in the episode with Daniel, Brandon is so fundamental. 00:21:13.035 --> 00:21:14.718 the human operations. 00:21:14.722 --> 00:21:19.789 R one of the most important contributors to safety in the building, but I cannot tell you that. 00:21:19.849 --> 00:21:40.720 Better than brian so let me pass the voice to him on what he meant about the human interference in the five scenarios People contribute to the severity of fires by the contents that they put in buildings, how they treat things such as, do they block open smoke or fire doors? 00:21:41.349 --> 00:21:59.285 And so you have this human component that adds a complexity to what the fire scenario and the fire significance is going to be in any given building, which increases the uncertainty in prediction because you have this huge variability in the population. 00:21:59.805 --> 00:22:06.795 and so people are an always have been kind of a focus of protection in fire safety. 00:22:07.394 --> 00:22:12.575 And again, the fire service plays a role in, in keeping the emphasis on people. 00:22:12.815 --> 00:22:18.515 And if you look to earthquake engineering or wind engineering, it's not that they ignore people, but they're. 00:22:19.005 --> 00:22:26.744 Very much in the paradigm of the probability of failure of the system or a significant part of the building. 00:22:26.744 --> 00:22:29.954 so the focus is the building and not the people. 00:22:29.954 --> 00:22:36.555 And what's the reliability of the structural system, given different load combinations. 00:22:36.605 --> 00:22:44.525 And so you never see a building regulation or a standard talk about, explicitly the life loss side of it. 00:22:44.765 --> 00:22:56.384 Whereas in fire, it's always talking about, what's the, how many people are going to die, what's the probability of, 10 or more people dying, which is by NFPA kind of a large event. 00:22:57.595 --> 00:22:58.555 So we have this. 00:22:59.035 --> 00:23:03.694 Important source of uncertainty in our design scenarios. 00:23:03.755 --> 00:23:05.494 Uh, which are people. 00:23:05.674 --> 00:23:09.994 We have people which are the target for the safety of the building. 00:23:10.234 --> 00:23:16.971 We have another group of people, firefighters who Core expected to enter the building and rescue it. 00:23:17.122 --> 00:23:19.071 So there was a lot of human operation. 00:23:19.582 --> 00:23:26.571 A lot of involvement on the design, fire and design scenario, but why it's it's important. 00:23:26.761 --> 00:23:39.092 And episode four, the aide I've invited Mike Spearpoint to talk about dangers and cap-ex and our discussion has eventually twisted towards the design scenarios and their importance in fire engineering. 00:23:39.541 --> 00:23:48.902 And this concept of the consistent level of crudeness has emerged, which in my opinion is very interesting when you think how engineering is done and how. 00:23:49.291 --> 00:23:51.122 Our analysis are performed. 00:23:51.511 --> 00:23:56.251 So Mike Let's discuss the role of fire scenarios in our analysis. 00:23:56.990 --> 00:24:01.380 I love, how you positioned design fire as the most fundamental thing. 00:24:01.380 --> 00:24:06.630 And I agree with Vyto that it is the most important thing in the fire engineering. 00:24:06.630 --> 00:24:07.680 And if you think about. 00:24:08.494 --> 00:24:12.154 what would be the error in your engineering judgment? 00:24:12.184 --> 00:24:28.154 If you mistake the heat release rate, let's say you take two megawatts where you should have taken eight, w what's the impact of that on the outcome compared to like a choice of turbulence methods or choice of the mesh size in your CFD. 00:24:28.605 --> 00:24:38.265 And yet people spend so much time justifying this minuscule choices and they just go and the fire was like seven megawatts because we felt, because it was Wednesday. 00:24:39.130 --> 00:24:47.423 Yes, we could end up on a, different soap box about the, um, I mean, I mean, again, this is not something that I invented. 00:24:47.453 --> 00:24:48.894 It's a term that I've adopted. 00:24:48.894 --> 00:24:57.136 I got it from professor, from Andy Buchannan, but I think he got it from, uh, one of his colleagues, David Elms, this idea of consistent level of crudeness. 00:24:57.470 --> 00:25:06.440 so if there's no point going into a lot of detail in one parameter or one element, if another element is going, you're going to have to make a sort of broad judgment. 00:25:06.634 --> 00:25:07.713 it doesn't make sense. 00:25:07.974 --> 00:25:18.263 so yes, you, you want to get that consistent level of crudeness in any calculation, otherwise, yeah, something will have a very little difference, but you might spend a long time worrying about it. 00:25:18.564 --> 00:25:20.814 Uh, whereas something else you've just picked. 00:25:21.430 --> 00:25:25.426 from thin air, but that might have a really big impact on the outcome. 00:25:25.787 --> 00:25:37.906 And so these are sorts of questions that know myself and many others sort of wonder about now and again, try and do some simulations or calculations or try and demonstrate it. 00:25:38.325 --> 00:25:43.785 So you see the design fire will be probably the most influential aspect of your fire engineering analysis. 00:25:44.325 --> 00:25:47.625 So that's a very tough decision to make. 00:25:47.625 --> 00:25:49.335 And often we do it. 00:25:49.785 --> 00:25:53.684 Without really discussing that with other counterparts without really. 00:25:54.404 --> 00:26:00.015 Totally investigating the potential fire developments in our building. 00:26:00.280 --> 00:26:07.810 And here again, the risk aspects, the risk methods in fire can really shine because they give you this broader knowledge. 00:26:08.171 --> 00:26:10.000 I would like to come back to the episode. 00:26:10.067 --> 00:26:17.247 23 with Jaime Cadena Gomez where he shared with me, He stalls about building design fires. 00:26:17.696 --> 00:26:21.866 And treating design fire, not as an input, but as an output to your analysis. 00:26:22.258 --> 00:26:29.991 So if you really want to go down that path, the requirements that you will have for the professionals involved are completely different. 00:26:30.442 --> 00:26:33.172 You're not only talking about modeling a fire. 00:26:33.172 --> 00:26:39.521 You're talking about constructing a whole basis of knowledge, of both likelihood and consequences. 00:26:39.582 --> 00:26:49.682 And one key thing that I remember Jose telling me halfway through the PhD is you have to remember that fire scenarios are not an input. 00:26:50.068 --> 00:26:52.288 Fire scenarios are an output. 00:26:52.528 --> 00:26:58.949 You start with an idea of where you might have a fire and you start exploring what that could lead to. 00:26:59.308 --> 00:27:04.019 And you end up with the fire scenario, but you might have to do some calculations. 00:27:04.019 --> 00:27:08.888 And a lot of brain work to actually figure out what the scenario is going to be. 00:27:09.398 --> 00:27:15.068 So that's a major difference between a fire say in a chemical. 00:27:15.909 --> 00:27:19.568 And a fire in a building, the scenarios are not evident. 00:27:19.628 --> 00:27:24.398 So you cannot just say, oh,design fires and check that step is covered. 00:27:24.538 --> 00:27:28.929 No, they actually required each iteration and checking those blind spots. 00:27:29.719 --> 00:27:30.769 So we're almost there. 00:27:31.038 --> 00:27:32.898 At the one most important skill. 00:27:33.288 --> 00:27:34.459 You have to have. 00:27:34.664 --> 00:27:35.565 Uh, no, it's not. 00:27:35.684 --> 00:27:50.133 Drafting the design fires If you think about it, this creation of the design fires, the creation of engineering design of the fire safety of the building, this holistic puzzle that we need to set to make the shoe, that the building is fire safe. 00:27:50.613 --> 00:27:52.923 It's kind of overwhelming, but. 00:27:53.107 --> 00:27:54.458 Lisa it really necessary. 00:27:54.458 --> 00:27:58.448 Maybe there are some shortcuts to make this better. 00:27:58.538 --> 00:28:00.817 Make this easier, make this quicker. 00:28:01.208 --> 00:28:02.887 Based on our knowledge intuition. 00:28:03.488 --> 00:28:04.928 Previous experiences. 00:28:05.346 --> 00:28:06.007 I really hate to say. 00:28:06.186 --> 00:28:06.846 But the code's instant. 00:28:07.416 --> 00:28:07.507 come. 00:28:07.507 --> 00:28:09.310 come to my Mind in here I think there's a. 00:28:09.378 --> 00:28:13.540 Plays for every tool we have and there will be buildings. 00:28:13.810 --> 00:28:23.780 Which will , require this amazing level of engineering master crafting the design scenarios and going through the full risk analysis to really understand. 00:28:24.111 --> 00:28:26.151 The basis of the risk in that building. 00:28:26.480 --> 00:28:27.621 But that's for sure. 00:28:27.621 --> 00:28:29.121 Not for all of the buildings. 00:28:29.353 --> 00:28:35.309 Well, Maybe we actually focused too much on this aspect of fire safety engineering. 00:28:35.759 --> 00:28:40.319 It was something that, again, Brian Mitcham has brought in the discussion. 00:28:40.859 --> 00:28:41.869 And it was a very. 00:28:41.869 --> 00:28:52.817 Powerful and eye opening if you look to the system safety literature, and some of the constructs that are used in other areas. 00:28:53.127 --> 00:29:21.502 Let's, take road safety just as an example, and in the countries and elsewhere, they have a vision zero objective to, try to reduce the number of accidents that you know, would lead to a death due to traffic accident and so the aim is to put in designs within the system to control for, the type of accident or incident that could occur. 00:29:21.863 --> 00:29:27.262 That would be a an indicator or a predicator of that fatality. 00:29:27.262 --> 00:29:46.482 So the focus is on, putting in safety systems, safety boundaries, minimizing the potential for the unacceptable event to occur rather than calculating or estimating all the scenarios that would necessarily lead to the unaccepted or unacceptable loss. 00:29:46.843 --> 00:30:06.073 So if we change that over to fire, maybe we spend far too much time, trying to create scenarios that, address situations that yes, would result in a fire, but may not be the fire that we're going to see or as suitably representative enough. 00:30:06.583 --> 00:30:21.242 So what if we kind of take a step backwards to the idea of the most, worst credible case, fire event or the maximum foreseeable loss scenario type that the insurance industry uses. 00:30:21.633 --> 00:30:31.803 And the design is focused on putting in safety barriers that are intended to keep the loss within the limits. 00:30:32.143 --> 00:30:50.343 Maybe we're modeling situations that, we're trying to understand, but we don't actually need to understand to end up with the level of safety or the implementation of safety measures that would increase the safety to a socially acceptable level. 00:30:51.153 --> 00:30:58.792 But that's a much different way of thinking then performance-based design is currently being practiced. 00:30:59.402 --> 00:31:00.271 So here we are. 00:31:00.876 --> 00:31:05.557 As a fire engineers, we deal with enormous complexity. 00:31:05.977 --> 00:31:07.356 Of physics. 00:31:07.356 --> 00:31:09.967 Uh, architecture systems. 00:31:10.477 --> 00:31:11.916 . Social constructs. 00:31:12.487 --> 00:31:16.207 And hire the aspects that influenced fire safety in our buildings. 00:31:16.537 --> 00:31:18.636 It's a hell of a puzzle to complete. 00:31:19.207 --> 00:31:23.190 And to be honest, we are capable of. 00:31:23.190 --> 00:31:24.559 Holistically viewing it. 00:31:24.559 --> 00:31:30.140 We're capable of masterfully crafting the design solutions for our buildings. 00:31:30.769 --> 00:31:34.000 After one year of dealing with this podcast. 00:31:34.227 --> 00:31:35.201 Of talking with. 00:31:35.217 --> 00:31:39.207 My fellow colleagues, experts in the field. 00:31:39.896 --> 00:31:40.527 I feel. 00:31:40.527 --> 00:31:41.876 The knowledge is here. 00:31:42.116 --> 00:31:43.467 The models are here. 00:31:43.826 --> 00:31:46.317 Every year, we better and better at. 00:31:46.400 --> 00:31:52.430 Understanding fire physics, fire dynamics, the consequences of fires, the ways, how to prevent fires. 00:31:52.880 --> 00:31:54.980 We have solutions for almost anything. 00:31:55.579 --> 00:31:55.849 Yet. 00:31:55.849 --> 00:31:57.589 It is so hard to implement them. 00:31:58.220 --> 00:31:59.809 And why is that? 00:31:59.900 --> 00:32:02.000 I think the one thing. 00:32:02.480 --> 00:32:05.930 That we need to really do more now immediately. 00:32:06.470 --> 00:32:08.750 Is to learn how to communicate efficiently. 00:32:09.650 --> 00:32:14.720 I think communication with our stakeholders with architects. 00:32:15.170 --> 00:32:18.200 With authorities with firefighters. 00:32:18.710 --> 00:32:20.750 With society even. 00:32:21.529 --> 00:32:22.880 This communication. 00:32:23.480 --> 00:32:29.089 Seems to be the number one missing element of moving fire safety forward. 00:32:29.690 --> 00:32:33.619 So many people in the podcast said, That we leave in silos. 00:32:33.650 --> 00:32:35.029 We're building the silos. 00:32:35.029 --> 00:32:37.880 We close fire safety engineering to other disciplines. 00:32:38.420 --> 00:32:40.190 So many have said. 00:32:40.579 --> 00:32:43.609 That people don't understand what we are doing. 00:32:43.609 --> 00:32:48.079 They don't understand how fire safety can be achieved in their buildings. 00:32:48.650 --> 00:32:54.710 They do not understand what we try to say to them, which means it's not that they're stupid. 00:32:54.980 --> 00:32:57.109 It's us who lack the communication skills. 00:32:57.650 --> 00:32:59.450 But keep in mind communication. 00:32:59.809 --> 00:33:01.250 Is a two way route. 00:33:01.940 --> 00:33:04.160 You don't communicate by evangelizing. 00:33:04.519 --> 00:33:10.880 The designers of your building were don't want to go on the crusade and push the knowledge on them. 00:33:11.329 --> 00:33:19.849 We need to communicate in a way that they understand why and what we are trying to achieve. 00:33:20.329 --> 00:33:23.509 And to understand, we also need to learn how to listen. 00:33:23.930 --> 00:33:25.039 We need to learn. 00:33:25.369 --> 00:33:31.549 How to understand their problems so we can give solutions for them, not solutions for us. 00:33:32.327 --> 00:33:33.760 And this needs for communicate. 00:33:33.790 --> 00:33:35.441 The reason why we need it. 00:33:35.980 --> 00:33:38.351 It's something that I've touched with Jimmy Johnson. 00:33:38.800 --> 00:33:41.931 The next president of SFP In episode 24. 00:33:42.381 --> 00:33:48.230 Uh, you also need to listen one then in which we've talked about, who is a fire safety engineer? 00:33:48.530 --> 00:33:51.681 So let's hear what Jimmy had to say about communicating. 00:33:51.999 --> 00:34:08.539 The key is his communication skills is what you said, because you're forced to communicate the same problem or the same solution to such a wide range of different people that someone has, as you said, no skill, no technical skill at all. 00:34:08.688 --> 00:34:12.032 They handling, uh, permitting a license , or a money issue. 00:34:12.032 --> 00:34:14.012 They buying the components, something. 00:34:14.815 --> 00:34:20.413 To the far far end to another engineer, maybe the, third party reviewer of the project, which is a fire engineer here. 00:34:20.802 --> 00:34:28.182 And then to the authorities that might know a lot, or might not know a lot that we'd have to approve this whole thing. 00:34:28.478 --> 00:34:32.298 So I think that's a, key skill that is necessary. 00:34:32.628 --> 00:34:33.858 You need to be able to communicate. 00:34:34.463 --> 00:34:37.913 Uh, really well to convey the idea and the solutions. 00:34:37.932 --> 00:34:39.023 Everyone understands it. 00:34:39.983 --> 00:34:48.532 And I really liked one thing that you said there well, you don't need to have any license if you have a lot of money , to do whatever you want with that money. 00:34:48.532 --> 00:34:48.742 Yeah. 00:34:48.963 --> 00:34:51.682 If there's someone keen to invest, in this. 00:34:51.911 --> 00:34:56.224 And you're convinced them, for example, this is, acceptable and it will work. 00:34:56.557 --> 00:34:59.168 You better be sure that that will work then later on. 00:34:59.217 --> 00:35:23.577 A lot of pre-work is needed, especially with authorities before you actually start any project, make sure that it will be to some degree acceptable that you have a path that is planned, that you can actually convince them and that they are open to these ideas because that is all a performance based design about your you're not compliant with the rules, you're deviating from the rules. 00:35:23.911 --> 00:35:31.085 So unless that is conveyed in a straight manner and a serious in an open way, the project will not go forward. 00:35:31.085 --> 00:35:35.702 So I think communication is the number one skill as you said, And that's it. 00:35:35.822 --> 00:35:39.422 So in the world of complexity, in the world of. 00:35:39.753 --> 00:35:46.293 Really difficult, far design in the world where it is so hard to define how the fire will go in the building. 00:35:46.623 --> 00:35:47.672 What will happen? 00:35:48.063 --> 00:35:58.202 And why it is important in the world where country boarders change the level of safety expected from the buildings in the world. 00:35:58.382 --> 00:36:00.063 We're going from country to country. 00:36:00.063 --> 00:36:02.072 You will meet the different codes. 00:36:02.342 --> 00:36:04.802 Different standards, different expectations. 00:36:05.043 --> 00:36:09.242 Different levels at which you have to discuss the fire safety. 00:36:09.813 --> 00:36:10.503 In the world. 00:36:10.833 --> 00:36:11.193 That. 00:36:11.422 --> 00:36:13.987 It may be so hard to provide the. 00:36:14.976 --> 00:36:18.336 Universal answer to what fire safety is. 00:36:19.327 --> 00:36:22.597 The number one thing is to communicate. 00:36:23.077 --> 00:36:23.827 To listen. 00:36:24.547 --> 00:36:25.177 The thing. 00:36:25.686 --> 00:36:29.467 And provide answers to truly respond to the problems we have. 00:36:29.947 --> 00:36:32.976 If we lack objectives, let's talk about objectives. 00:36:33.036 --> 00:36:34.416 Let's start a discussion. 00:36:34.746 --> 00:36:38.166 Let's find what's important in our low system. 00:36:38.197 --> 00:36:39.516 What do we want to protect? 00:36:39.516 --> 00:36:41.527 What do you want to expect from the buildings? 00:36:41.976 --> 00:36:43.356 We know how to achieve that. 00:36:43.657 --> 00:36:45.336 We know what can be achieved. 00:36:45.847 --> 00:36:47.947 Let's open the discussion and let's talk it over. 00:36:48.460 --> 00:36:56.793 If you're the world's most brilliant fire scientists, but you have never talked with people who in the end will be using the one thing that you are developing. 00:36:57.123 --> 00:36:58.204 I have a bad news for you. 00:36:58.204 --> 00:36:59.344 It will not be used. 00:36:59.344 --> 00:37:04.023 It will not be implemented because maybe you are not solving any issue for them. 00:37:04.324 --> 00:37:09.134 Maybe you are, maybe you're actually creating problems that they do not want. 00:37:09.463 --> 00:37:11.884 Maybe you create complexities. 00:37:12.503 --> 00:37:15.773 Applying that they're related to other technologies or other objectives. 00:37:15.773 --> 00:37:19.885 They need the world of fire engineering is just one piece of a building puzzle. 00:37:20.067 --> 00:37:24.266 There is so many objectives that need to be optimized for that. 00:37:24.476 --> 00:37:32.070 When a fire solution is simple to adapt and does not interfere with the rest of the building that that will be always chosen over a solution. 00:37:32.309 --> 00:37:34.860 That's great for fire, but complex for everyone else. 00:37:35.099 --> 00:37:39.960 You need to have this in your mind and to understand that you need to communicate. 00:37:40.847 --> 00:37:44.538 you want to design a building with different than. 00:37:44.614 --> 00:37:47.494 Code requirements to some fundamental features. 00:37:47.494 --> 00:37:50.014 I don't know, fire resistance or some safety systems in it. 00:37:50.403 --> 00:37:51.454 Let's discuss that. 00:37:51.963 --> 00:37:55.864 You need to be able to explain why are you doing. 00:37:56.384 --> 00:37:57.554 the choices you do. 00:37:57.914 --> 00:37:59.563 And what will they achieve? 00:37:59.684 --> 00:38:03.824 And that's your only chance to get this design approved. 00:38:04.273 --> 00:38:10.364 You want to design a really great fire scenario for a building, or you want to understand how the fire develops in your building? 00:38:10.364 --> 00:38:12.494 Well, you cannot really do it alone. 00:38:12.614 --> 00:38:15.224 You need to work with the architect, with the structural engineers. 00:38:15.643 --> 00:38:20.653 You need to understand the foundation of the building, the goals they want to achieve by building the building. 00:38:20.873 --> 00:38:27.873 to Truly understand which aspects of the building are important and which may be changed to improve the fire safety. 00:38:28.264 --> 00:38:38.313 Because if you don't do that, you'll end up in a never-ending battle with someone who really doesn't like your solution and will do anything to stop it. 00:38:38.614 --> 00:38:40.414 Eventually stopping fire safety in the building. 00:38:40.864 --> 00:38:46.353 So, yeah, my take from the podcast from talking with fire experts for over a year. 00:38:47.164 --> 00:38:50.193 This to listen more and communicate better. 00:38:50.974 --> 00:38:54.813 And I think that's the missing puzzle we have. 00:38:55.384 --> 00:38:57.063 It seems we have all the others. 00:38:57.391 --> 00:38:58.760 So that's it for them. 00:38:58.797 --> 00:39:00.311 One year episode. 00:39:00.311 --> 00:39:02.110 I wonder what the lessons will be. 00:39:02.561 --> 00:39:06.760 In the second year of podcast and will this view change over time? 00:39:07.121 --> 00:39:13.570 I'm really excited to see what the next year will bring and what is going to happen over here. 00:39:13.601 --> 00:39:14.501 One thing for sure. 00:39:14.501 --> 00:39:17.351 I'm definitely going to continue this project. 00:39:17.831 --> 00:39:22.351 And there is no expiry date on the Fire science shows. 00:39:22.860 --> 00:39:24.481 You can really expect. 00:39:24.960 --> 00:39:29.550 Episodes come your way every Wednesday to help you communicate better. 00:39:30.001 --> 00:39:33.900 To help understand issues of others better and help. 00:39:34.201 --> 00:39:34.771 Building. 00:39:34.918 --> 00:39:36.059 Uh, fire safe world. 00:39:36.358 --> 00:39:39.418 Thank you very much for listening to this episode. 00:39:39.547 --> 00:39:44.498 And all the previous episodes of the podcast, I really appreciate your presence. 00:39:44.557 --> 00:39:47.257 I appreciate your time spent with me in here. 00:39:47.648 --> 00:39:51.577 And I appreciate your support, all the kind messages, the reviews. 00:39:52.057 --> 00:39:55.358 It's also nice and, and makes this job. 00:39:55.777 --> 00:39:57.427 Very very worth it. 00:39:57.967 --> 00:39:58.568 Thank you. 00:39:58.688 --> 00:40:00.967 Dear listener of the Fire Science Show. 00:40:01.538 --> 00:40:02.527 And yeah. 00:40:02.557 --> 00:40:04.358 I see here next Wednesday. 00:40:04.748 --> 00:40:05.077 Bye.