2025 Team Third - Moiré-Based Schlieren @TheMordent
2025 Team Third - Moiré-Based Schlieren  @TheMordent
Uploaded November 2025 | Updated September 2026, 1 hour ago
Recorded November 5, 2025 by Andrew Mord, Alyx Ellington, and Ellington Smith. Submitted for Get Wet 2025 at flowvis.org

This video was taken by filming hot objects in front of a Moiré pattern, then subtracting a duplicate video offset by a few frames. The result exploits Moiré deflectometry and reveals density gradients in the air. A solder iron shows the lighter density of air around it and propane coming out of a lighter can be seen. Propane soap bubbles are ignited in a hand and decrease the density of air around it.

Music by yours truly.
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2025 Team Third - Moiré-Based Schlieren

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