Controlled experiments reveal how nuclear fallout particles form

In less than a millionth of a second after a nuclear detonation or a severe nuclear reactor accident, an enormous burst of ...

Physicists Have Measured “Negative Time” in Bizarre Quantum Experiment

Quantum physicists have uncovered a bizarre phenomenon in which photons appear to spend a “negative” amount of time ...

Rethinking hysteresis—a thermodynamic framework for history-dependent solids

Many solid materials "remember" their past. A piece of metal may respond differently after being stretched, heated, or cooled, and memory materials rely precisely on this kind of history-dependent ...
Harvard Business School

Navigating the Jagged Technological Frontier: Field Experimental Evidence of the Effects of Artificial Intelligence on Knowledge Worker Productivity and Quality

By: Fabrizio Dell'Acqua, Edward McFowland III, Ethan Mollick, Hila Lifshitz-Assaf, Katherine C. Kellogg, Saran Rajendran, Lisa Krayer, François Candelon and Karim R. Lakhani ...