Vukan Vuchic of the School of Engineering and Applied Science comments on a Chinese railcrash and safety precautions.
Technology & Engineering
PHILADELPHIA — Renaissance architects demonstrated their understanding of geometry and physics when they built whispering galleries into their cathedrals. These circular chambers were designed to amplify and direct sound waves so that, when standing in the right spot, a whisper could be heard from across the room. Now, scientists at the University of Pennsylvania have applied the same principle on the nanoscale to drastically reduce emission lifetime, a key property of semiconductors, which can lead to the development of new ultrafast photonic devices.
Penn partners with a team from Virginia Tech to build a “Dynamic Anthropomorphic Robot with Intelligence.”
Kenneth Foster of the School of Engineering and Applied Science is interviewed about his research on health and radio-frequency energy.
PHILADELPHIA — Humans produce billions of clot-forming platelets every day, but there are times when there aren’t enough of them, such as with certain diseases or during invasive surgery. Now, University of Pennsylvania researchers have demonstrated that a single drug can induce bone marrow cells called megakaryocytes to quadruple the number of platelets they produce.