Porous structures
Translation
[hint: drawing of two porous, cell-like structures â a square surface and a cube, both filled with small round holes]
Original (Swedish)
[hint: teckning av tvĂ„ poriga, cellliknande strukturer â en kvadratisk yta och en kub, bĂ„da fyllda med smĂ„ runda hĂ„l]