The week in physics: 12-16 April

The proton sea; Kitchen physics; Event horizon perturbation. Forward this email  View in your browser THE WEEK IN PHYSICS: 12–16 APRIL The puzzling asymmetry of the proton sea Protons are everywhere, and they've been studied for decades. But there's still more to learn about how they're built. Johanna L. Miller A supermassive black hole's magnetically perturbed event horizon Newly published observations elucidate the magnetic fields that pervade a massive galaxy's innermost regions. Charles Day FROM THE VAULT: March 1978 Steps toward the Hertzsprung–Russell Diagram In the late nineteenth century, astronomers seeking to classify stars by their spectra using then‐current concepts of stellar evolution found a temperature–luminosity plot that revolutionized the subject. David H. DeVorkin Federal agencies expanding disclosure requirements for scientists Universities concerned about the scope of information sought from scientists receiving federal funding. Mitch Ambrose Advertisement Used Keysight Equipment for Education Extend your budget without making compromises. Used Keysight equipment provides great savings on quality instruments. In fact, used equipment offers discounts of up to 80% when compared to a new model. If you're working in education, research, or a non-profit, you may qualify for an extra 15% off. Q&A: Pia Sörensen and David Weitz on physics in the kitchen The researchers talk about their wildly successful Harvard University course and the book it inspired. Ryan Dahn Quantifying perceptual errors in virtual soundscapes Machine learning can measure meaningful differences in a key sound-localization parameter. Richard J. Fitzgerald Advertisement Oxford Instruments Gains Momentum in Quantum Computing Oxford Instruments NanoScience announced its latest innovation in Cryofree® dilution refrigerator technology for quantum computing scale-up, the ProteoxLX. The LX system can maximize qubit counts with ample coaxial wiring capacity making use of two of the fully customizable Secondary Insert modules. Discover more: nanoscience.oxinst.com/ProteoxLX FROM THE APRIL MAGAZINE Liquid metals at room temperature Emerging applications and studies utilize gallium-based alloys for their unique properties. Michael D. Dickey Get notified about our webinars and whitepapers Sign up Get Physics Today delivered for just $25 per year Subscribe FEATURED JOBS > Test Engineer  |  Trane Technologies > Upper School Physics Teacher  |  Manlius Pebble Hill School Are you hiring? Do you want your job to appear here? Post with Physics Today and select the "Featured Job Listing: Physics Today 'The Week in Physics' e-newsletter" upgrade to easily showcase your job to 66 000 physicists and engineers. Physics Today is published by the American Institute of Physics 1 Physics Ellipse, College Park, MD 20740 USA +1 301 209 3100 © 2021 American Institute of Physics. Unsubscribe  |  Email Preferences  |  Privacy Policy  |  Contact Us