Researchers have designed and built a new chemical tool inspired by natural metal-containing enzymes in living organisms. The product, a tetrahedral "chiral zinc", maintains its shape for years ...

Other approaches to solving the tetrahedron packing problem have not involved computer simulations. Researchers instead tried out different arrangements to arrive at the densest structure.

"How a tetrahedral substance can be more symmetrical than a spherical atom." ScienceDaily. ScienceDaily, 14 September 2018. <www.sciencedaily.com / releases / 2018 / 09 / 180914100334.htm>.