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Although diamonds (top left) and graphite (top right) are identical in chemical composition being both pure carbon X ray crystallography revealed the arrangement of their atoms (bottom) accounts for their different properties. In diamond, the carbon atoms are arranged tetrahedrally and held together by single covalent bonds, making it strong in all directions. By contrast,…

If you plan to add only one or a few charms to your bracelet

Matthias Fockele founded Realizer GmbH.[citation needed]The ASTM International F42 standards committee has grouped selective laser melting into the category of “laser sintering”, although this is an acknowledged misnomer because the process fully melts the metal into a solid homogeneous mass, unlike selective laser sintering (SLS) which is a true sintering process. Another name for Selective…