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Penn State researchers modeled what the Liberty Bell might have sounded like using modal analysis of a 20th-century replica, presenting their acoustic findings at the Acoustical Society of America meeting and in Physics Today ahead of the nation's 250th anniversary.

Researchers at Pennsylvania State University have developed a conductive ink that can be painted onto skin as colorful, functional e-tattoos for monitoring biosignals, addressing limitations of previous designs. The work is published in PNAS.

A Penn State study found that AI chatbots like ChatGPT respond to everyday health queries with nearly 76% accuracy, raising concerns about trustworthiness in real-world healthcare applications. The research highlights that AI tools may be best used by physicians rather than patients.