May 2019 Issue of Physics Today Is Online & in the Mail
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.
Tracking the Journey of a Uranium Cube
A mysterious object led two physicists to investigate the German quest and failure to build a working nuclear reactor during World War II. — Timothy Koeth & Miriam Hiebert
Craters on Pluto and Charon Show That Kuiper Belt Collisions Are Rare
There are far fewer small bodies in the solar system's outer reaches than there would be if collisions were common. — Johanna L. Miller
Australia Sees Big Opportunity in Hydrogen Energy
As one company brings a hydrogen-carrying fuel to market, researchers focus on ammonia as an optimal storage compound for export. — David Kramer
Microswimmers with No Moving Parts
Microscopic self-propelled particles could one day be used to clean up wastewater or deliver drugs in the body. — Jeffrey Moran & Jonathan Posner
Disease Transmission via Drops and Bubbles
Watery air bubbles covered with bacteria or viruses can live far longer than uncontaminated ones. And on bursting, they spawn orders of magnitude more droplets, each one a microbial grenade. — Stephane Poulain & Lydia Bourouiba
...and much more!