Researchers created sound that can bend itself through space, reaching only your ear in a crowd

By combining ultrasound with a concept called nonlinear acoustics, you can create sound that stays silent until it reaches a specific location.

Yun Jing, Professor of Acoustics, Penn State • conversation
March 17, 2025 • ~7 min

Abortion pills are just as safe to prescribe based on a patient's medical history as after an in-person exam, new research finds

During the pandemic, health care providers began prescribing abortion pills safely based solely on a patient’s medical history. Continuing this practice could help remove barriers to abortion care.

Ushma Upadhyay, Associate Professor of Obstetrics, Gynecology & Reproductive Science, University of California, San Francisco • conversation
March 21, 2022 • ~7 min

Most people carry remnants of a chemical pollutant – ultrasound technology can help clean it up

New treatment can break down toxic substances into relatively harmless elements.

Madeleine Bussemaker, Lecturer in Chemical Engineering, University of Surrey • conversation
July 7, 2020 • ~8 min

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