Wolford wins NCAA title in swimming

Fifth-year student Kyle Wolford won the national title in the 200 backstroke with a time of 1:44.15 March 22 in Greensboro, N.C. He is the 27th student-athlete to win an individual national title.

How Alexa is listening

image of a circular smart speaker
Umar Iqbal, a computer security expert from Washington University, explains how smart speakers process user data.

Crystallizing time

time crystal
Physicists in Arts & Sciences have created a new phase of matter in the center of a diamond. They created a new form of time crystal called a discrete-time quasicrystal. Such states could be useful for high-precision sensing and advanced signal processing.