This was Fabian Monrose's lab at the University of North Carolina, and what they did was something intuitive once you see it, but kind of surprising.
Tohle udělali lidé z laboratoře Fabiana Monrose z Univerzity Severní Karolíny. Zní to docela snadno, jakmile to jednou vidíte, ale stejně je to docela překvapivé.