Scientists have made a satisfying and intriguing physics discovery some 16 years after it was first predicted to be a possibility: a quasiparticle (a group of particles behaving as one) that only has ...

A ratcheting wrench, is a type of wrench that employs a ratchet mechanism to block movement in one direction while allowing constant rotation in another. The mechanism, consisting of a pawl and a gear ...

UNIVERSITY PARK, Pa. — For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other ...

Zoë Charlton, "Permanent Change of Station" (2022) in A Movement in Every Direction: Legacies of the Great Migration at the Chicago Cultural Center (photo Patrick L. Pyszka, City of Chicago) CHICAGO — ...