El Perro se arrancó en el carro!!
Who knew that I’d be invoking Bernoulli’s principle just about every time I talked in Spanish?
“The sound is made because of the Bernoulli’s principle, an aspect of physics which defines the movement of fluids and gas over different shapes, and one of the principles of flight. In other words, the shape of your tongue will partially resemble an airplane wing, with the exhaled air passing over the top of the stiff, shaped lower tongue and vibrating the tip against the ridge like the flaps on an airplane wing.”
Source (wikiHow: How to Roll Your “R”s)
