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

Schlieren imaging techniques have emerged as a powerful diagnostic tool in fluid dynamics, providing detailed visualisations of density gradients and refractive phenomena in transparent media. By ...

Oh, wow. Aerodynamics research has never looked as pretty as it does with this new variation of an old technique for imaging supersonic shockwaves. Image of a supersonic T-38C using a new technique of ...

The Background Oriented Schlieren Method is a very simple technique to visualize density gradients, that base on the deviation of light rays due to refractive index changes. The technique can be ...

The word “Schlieren” is German, and translates roughly to “streaks”. What is streaky photography, and why might you want to use it in a project? And where did this funny term come from? Think of the ...

Nobody wants to live in a drafty house, yet checking for substantial air leaks within a home can be a complex process. Scientists have now devised what could be a much easier method of doing so, ...

NASA captured the amazing photos shown here using the schlieren technique. Never heard of it? It's a way of photographing air density gradients, like shockwaves in the air, by using something like the ...