Tetra Pak
Upon visiting the Tetra Pak factory in Lund in the 1950s, Danish Nobel Prize winner and Physics professor Niels Bohr called the tetrahedron "a perfect practical application of a mathematical problem", and the invention lay the foundation of the Tetra Pak success saga. The Royal Swedish Academy of Engineering Sciences has called the Tetra Pak packaging system one of Sweden's most successful inventions of all times. The development of the triangular tetrahedron carton package, the rectangular Tetra Brik, was represented at the 2011 exhibition "Hidden Heroes – The Genius of Everyday Things" at the London Science Museum/Vitra Design Museum, celebrating "the miniature marvels we couldn’t live without".