Fire Science Show
Fire Science Show
Wojciech Wegrzynski
203 - The lessons from repeating Jin's experiment on visibility in smoke
42 minutes Posted May 28, 2025 at 8:00 am.
Introduction to Visibility in Smoke
What is Visibility in Smoke?
Jin's Historical Experiments Explained
Repeating Jin's Experiments Today
Background Brightness: A Critical Variable
Sign Size: The Overlooked Factor
Light Reflecting vs Emitting Signs
Engineering Implications and Future Research
Conclusions and Design Considerations
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I've finally done it. We've repeated Jin's experiment! I thought I knew-it-all about that experiment, but boy... knowing and doing it are two different things. I can say, I've finally cleared my mind on some thoughts after this, which I am finally happy to share with all of you! First things first, massive thanks to my partner in crime Wai-Kit Wilson Cheung, from the group of prof. Xinyan Huang, who was the man on the ground doing the experiments with me. Together we went further into this mo...