The Bizarre Way We Track Fake Virus Particles That Shouldn't Work

I don't know who you are. I don't know what you want...

Before I saw his name printed on screen, I heard "Emmanuel Bernoulli", and I thought, "well, no wonder he's good at this stuff!!" :))

"All models are wrong. Some models are useful." -My professor on biological modeling

"Imagine it's a spreadsheet. It probably isn't..." Um, you've known Matt Parker for how long?

I first heard you say "Vanoli" as "Bernoulli" and thought that was a suspiciously serendipitious name for an expert in fluid dynamics.

That is a worryingly good Liam Neeson impression.

Like comedian Pete Holmes says, the best way to do a good impression is to insist that it was good

Air curtains are underutilized. One of the easiest ways to isolate an area with very little construction.

I think the lattice model needs to use hexagons, because they are the bestagons.

So did anyone measure the actual airflow at sample points in the hospital to check the accuracy of the model?

In college I did some work with modeling wildlife populations. The rule that all models follow: you don't need to be accurate, just accurate enough to be useful. The useful metric is determined by running the model and comparing the result to historic/real world data. The more dynamic the system, the worse all models are at peering into the future.

The research institute i worked at had 2 corridors with rooms in between in a building, the clean corridor was slightly positive pressure, the room was neutral, the dirty corridor was negative, this meant air could only go from clean to dirty (clean and dirty related to diseases)

We used a teen's vape to visualise airflows around an external supermarket queue with a 90 degree bend in it - proving 50% of all possible wind directions can cause particulate transfer, and you're never too old to be barred from Waitrose. Old uk duffer here :)

"Emmanuel Vanoli has a very particular set of skills... skills that he acquired using today's sponsor, Skillshare!"

Come to think of it... I've never seen Steve and Liam Neeson pictured together. Are we sure they're two different people?

Hey I've seen a lot of interesting videos from you. As a German with only basic English knowledge i can say: You are one of the best international artists on YouTube. I love scientific content from a lot of Youtube producers, but you manage to explain that I understand every word without a lot of pictures. Even though it's a foreign language for me. Because of your videos, I first dared to watch English content and now, after years, I no longer shy away from seeing every video in English. Thank you for the good content and the great pronunciation so that people who speak other languages ​​understand it well.

when working on the design of a hospital many years ago. there is a lot of thought put into which spaces are positively and negatively presurised. it's not as simple as spaces only having extraction. sany sensitive spaces like an operating theatre, ICU etc are positively presurised, so they dont get any nasties into them, things will tend to flow outwards, quarantine wards would be the reverse. the challenge is often getting spaces next to each other that work well like this, you cant have every room negatively pressurised, so it works really well to alternate them. The surprising thing here is having opening windows, you wont see that on many newer hospitals, precisely because it can screw a lot of this up.

Fun fact: The lattice at 8:55 works like pixels in an image or monitor. This allows developers to abuse the existing drawing functions in graphics cards to simulate fluids & gases using the same technology used for Textures in 2D/3D graphics. Each new image you draw is essentially a new time step in the simulation. The colors of the R G B pixels can be (ab-)used to represent 3d coordinates for position or speed

So... fluid flow is basically like a big game of chess... where it's just Kings... but they can occupy the same square? sometimes. it's nothing like chess. This is a dreadful analogy

"The artist formerly known as particle" Is that what they call that guy with the peculiar skill set?