January 2020 Issue of Physics Today Now Available
Hua Liu, American Astronomical Society (AAS)
Physics Today, the flagship publication of the American Institute of Physics (AIP), is the most influential and closely followed physics magazine in the world. With authoritative features, full news coverage and analysis, and fresh perspectives on technological advances and groundbreaking research, Physics Today informs readers about science and its role in society. Members of the AAS, an AIP Member Society, automatically receive free print and online subscriptions to the magazine. Physics Today Online, the magazine’s internet home, presents an enhanced digital edition and provides a valuable online archive.
The Sounds around Us
Various sounds in nature shape how animals, including humans, interact with their environment. — Megan McKenna
Negative Carbon Dioxide Emissions
As the world continues to spew carbon dioxide at record levels, it’s becoming clear that emissions reductions alone can’t prevent the greenhouse gas from rising to dangerous levels. — David Kramer
Twisted Bilayer Graphene Enters a New Phase
Improved device quality is the key to seeing a whole series of superconducting, correlated, and magnetic states in two layers of graphene assembled at a magic angle. — Heather M. Hill
Controversy Continues to Swirl around Uranium Enrichment Contract
A little-used nuclear fuel may be the foot in the door for a US company hoping to snag a far bigger prize. — David Kramer
Reevaluating Teacher Evaluations in Higher Education
Relying on students to rate professors is convenient, cheap, and problematic. — Toni Feder
Making the Modern Multiverse
A review of Tom Siegfried's The Number of the Heavens: A History of the Multiverse and the Quest to Understand the Cosmos. — Brian Keating
...and much more!