Schlieren Imaging in Color!

How Schlieren imaging works in color, black and white and slow-mo.

Special thanks to Patreon supporters:
Tony Fadell, Donal Botkin, Curational, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen, Corvi

Filming by Raquel Nuno
Sound Effects by A Shell in the Pit

[veritasium]

Sorry for being away for such a long time!! I've been shooting a documentary and that's involved a lot of travel - to Boston, Paris, Glasgow, Baltimore, DC, Houston, and now I'm home for a few days before heading off to Australia. I really appreciate your patience and support.

[ArnoldsKtm]

Whoever suggested color filter - kudos to you!

[ishbanyadav]

The amount of hardwork you put in for creating is really inspiring.

[Lahim]

Hi Derek. This might get lost in a sea of youtube comments, but nevertheless I have a suggestion for a sound-based Schlieren imaging experiment. I was wondering if it is possible to observe a 3D standing waves in air (or some other transparent medium). Standing wave will create a pressure differences, so theoretically we should be able to see with this technique the pressure gradients between nodes and antinodes. With proper set up we might see similar patterns as Chaldni patterns produced on a 2D plane. The technical realization will probably be a bit more difficult, but this was just a quick idea that crossed my mind.

[SomeoneCommenting]

The two-colored piece is awesome, the color contrast helps to see the flow movement much better.

[vooyas.mp]

That is some sick vaporwave art with those filters!

[BananeDollar]

Make a collab with the Slow mo Guys. this would be cool :D

[PictureFit]

That's a tough one. Getting hypno vids at 5:20 o.o

[rabbitpiet]

I only looked at the thumbnail and in already crying from its beauty and I have never liked a video so fast!!!

[nitaiflick]

This is by far the most clear and concise demonstration I've seen of Schlieren photography. It would be great to see the currents of an ionocraft!

[gpcaraudio]

I could watch these experiments all day. Epic

[Pyriphlegeton]

Please just upload 30m of uninterrupted colored Schlieren Footage.
This looks mesmerizing.

[boratsagdiev]

When you blew up that bubble SO close to the mirror my heart jumped because i remmemberd how mauch work it takes to clean my telescope 😭😭😭

[dgareandro]

You have manage to explain "concave lens" light behavior in the most compelling way I have seeing in the all my Collage student years hahaha.

[klave]

To see sound you have to strobe the led at a frequency very close to that of the sound. This will “freeze” the compressed and rarified sections of air long enough to see them. You’ll only be able to get one frequency at a time.

[nathanb]

"I may need to call in some support..." This sounds like a job for @theslowmoguys !!!

[Wawet]

For the sound thing, maybe try a speaker with a sound frequency close to a multiple of your camera framerate.

[hafizhoot]

The smooth flow from a fan. The flow out of a whistle. The flow out of a flute. The wing beat of a hummingbird. The waves of a housefly. The flow across a paper airplane. The whistle that comes out when you blow into a bottle in a specific way. The stationary wave produced by a tuning fork in a long cylinder.

And for sound, it doesn't have to be a shock-wave. Try producing a continuous sound that would give continual waves, like that from a tuning fork.

[NicksWhipShop]

I was able to find an old Olympus iSpeed 3 high speed camera and a 12in parabolic mirror for a really good price on eBay this year. I've been having such a good time to say the least. BB's, the tip of a whip cracking, supersonic flow from an air compressor, etc. I feel like a kid in a candy shop now, and the candy shop is in my basement! 😁 Your videos were very helpful to me during the process of setting up my schlieren system. Thanks man!!

[jtnwwmq]

watching a video about Schlieren in Schlieren, Switzerland.