Observe Airflow Using Smartphone And Background-Oriented Schlieren - Hackaday

Multiple people have recently shared this exciting demonstration (nitter) with us – visualizing airflow using a smartphone, called ‘background-oriented schlieren’. On a hot summer…

I wonder… Could you achieve the same effect with two static grids, measuring the air between them? If you had a background grid or series of lines, then an air pattern in front of it, then a grid on… [+1070 chars]

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