http://aluminiuminsider.com/researchers-confirm-discovery-floating-aluminium/
Like most common metals, aluminium lacks natural buoyancy. However, with a little rearranging of the metal’s natural molecular structure, one can produce an ultra-light crystalline form of the metal that is actually less dense than water and, as a result, floats upon it.
Research conducted by Utah State University Department of Chemistry and Biochemistry professor Alexander Boldyrev and published in the latest issue of The Journal of Physical Chemistry C has yielded just such a crystalline form using computational modeling.
“My colleagues’ approach to this challenge was very innovative,” explained Boldyrev. “They started with a known crystal lattice, in this case, a diamond, and substituted every carbon atom with an aluminum tetrahedron.”
Boldyrev’s colleagues, namely Iliya Getmanskii, Vitaliy Koval, Rusian Minyaev, and Vladimir Minkin of Southern Federal University in Rostov-on Don, Russia, confirmed the structure which is metastable and has a density of 0.61 grams per cubic centimeter. By comparison, conventional aluminium possesses a density of 2.7 grams per cubic centimeter.
(Score: 3, Funny) by bob_super on Tuesday September 26 2017, @07:21PM
> 3 to 5 worth of American-football concussions
New unit for behavior : My congressman is running at about 76 AFC.