Q&A

Wharton Professor Kevin Werbach explains Libra: whether it’s actually a cryptocurrency, Facebook’s interest in it, and looming regulatory challenges.

Zeid Ra’ad Al Hussein, distinguished global leader-in-residence at Perry World House, describes the workings of the U.S. ambassador to the U.N.—and whether it matters that it’s no longer of cabinet status.

A Q&A with inorganic chemist Eric Schelter about the chemical reactions that create explosive displays and how different metals are used to create bright and brilliant colors.

Africana Studies professor Mary Frances Berry discusses the history of civil rights legislation, and where the 1964 bill fits in.

In a Q&A, Penn demographer Michel Guillot discusses recent work showing that male children of immigrants from Algeria, Morocco, and Tunisia have a mortality rate nearly double that of the native population in France.

Kathryn O’Connor, an assistant professor of clinical orthopaedic surgery at the Perelman School of Medicine, gives the ins and outs of Achilles tears.

The Penn Memory Center’s Sanjeev Vaishnavi discusses the progress and setbacks made in Alzheimer’s research in the past five years.

A Q&A with biomaterials engineer Shu Yang about the real-life technologies and research that could allow people to climb up walls and synthesize their own superstrong spider silk.

In Pennsylvania and hundreds of other locations around the country, manmade chemicals known as PFAS have been found in drinking water. Howard Neukrug discusses the potential harm, how local and federal agencies are responding, and the many related questions that remain unanswered.

Sudanese scholar Ali Ali-Dinar, a senior lecturer in the Department of Africana Studies, discusses the ongoing uprising in the East African country and the Sudan massacre.