Cube drilling. Top: photos of experimental setup. Bottom: corresponding numerical results. The numbers of holes drilled per face are one (left), six (middle), and eight (right).

From the article:

Critical Fragmentation Properties of Random Drilling: How Many Holes Need to Be Drilled to Collapse a Wooden Cube?
K. J. Schrenk, M. R. Hilário, V. Sidoravicius, N. A. M. Araújo, H. J. Herrmann, M. Thielmann, and A. Teixeira
Phys. Rev. Lett. 116, 055701 (2016)

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