Two solids made of the same elements but with different geometric arrangements of the atoms, or crystal phases, can produce materials with different properties. Coal and diamond offer a spectacular example of this effect.
School of Arts & Sciences
Karen Beckman of the School of Arts & Sciences highlights Penn’s HAIKU conference.
Midshipman Mary Brass is just as strong as her name sounds.
One of the goals of genome sequencing is to identify genetic mutations associated with increased susceptibility to disease. Yet by and large these discoveries have been made in people of European or Asian ancestry, resulting in an incomplete picture of global genetic variation in disease vulnerability.