2D water magic

This Harry Potter merchandise has an interesting mechanism. I'll also show you how a chicken waterer works and I'll use tracker particles to show how water drains from a plug hole.

You can buy my books here:

You can support me on Patreon and get access to the exclusive Discord:

just like these amazing people:

Ubiquity Ventures
Pavel Dubov
Jeremy Cole
Jacob Chow
Jacob Elterich
Tj Steyn
Brendan Williams
Frank Hereford
Alex Hackman
Glenn Sugden
Lizzy and Jack
Lukas Biewald
Damien Szerszinski
Marshall Fitzpatrick
Heather Liu
Grant Hay
Paul Warelis
Nathan Blubaugh

[jordanbarnes]

I learned so much about chicken anatomy in this video.

[bichiroloXP]

"This is some Harry Potter merchandise that you can't get anymore, must be about twenty years old..." "...I cut one in half anyways" lol

[danielwhiting]

The smash cut at 3:59 away from the second "explanation" of how chickens drink really got me 😂

[DeathlyTired]

I've often seen chicken with those little cups, and wondered: why are they all carrying those around, and what are they for? Know I know! Thanks, Steve!

[vaibhavkr]

The echo effect basically lets us see the velocity vector of all the parts of water. So mesmerizing and neat!

[jasonmp]

I almost choked on my breakfast at “unless… you’re also 2D… and you’re coplanar with it”. The hesitations were crucial, as if he knew just how dumb an edge case he was about to describe.

[craftinapahantasiaartist]

From 7:04-7:30 and 7:32-7:41 song: “Baby It’s You” by artist: Revel Day, for anyone that’s wondering. Outro song: “Strut Funk” by Dougie Wood.

[sntbrski]

it's really time for Steve to open a museum of things cut in half, to put all the stuff he destroyed somewhere

[Paulhip]

The echo effect really made the difference. I’d love to see more with those neutrally buoyant particles

[QuantumHistorian]

#7:02 Amazing that a simple video effect can turn a picture of a scalar field into a vector field!

[Etx-z]

If I had a dollar for every time Steve recreated hydrodynamic mechanisms in 2D,

I would not know how many dollars I'd have because I haven't been keeping track.

But it would be enough dollars to where this joke would be appropriate.

[belugabelga]

the echo effect with the glowing particles at the end looks soo starry night, never cease to amaze us, never stop, you the best in what you do

[BelovedDevil]

I had to rewatch it twice because i couldn't stop thinking about how hard cleaning those magic goblets had to be and how disgusting they must get on the inside

[veri]

The echo effect showing flow in a liquid is really a hidden gem in this video. Glad I watched the whole thing; that almost deserves its own video

[manuelpena]

The fact of using the trace efect to get the streamlines (in real life) rivals the time you used aliasing to be able to "record gravitational waves" (in your elastic model). You are an artist

[Lynixai]

Your videos seem to be the only ones where I find myself trying to like the video twice, once early on in the video because of some early explanation, and then later again because of the followups.

Great video as always! I loved the effect of the water draining and refilling with the echo effect. Great visual aid

[swagmaster]

actual comedy genius 2:57
I will now imagine chickens holding tiny cups
3:50 I'm learning so much about how chickens work 😂

[eddieruddock]

Human crowd movement with the echo effect?

Might see reoccurring patterns in human foot traffic behaviour, could be interesting?

[ruzhecheng]

6:24 Seeing how the beads move reminds me of the Feynman sprinkler problem. The beads can be used to demonstrate the difference in direction and force between sucking in and blowing out water.

[martinfisker]

Steve is such a video editing genius. I dont know what I liked more: the science, the chicken jokes or the sexy laser cutter