The week in physics: Two-faced ice; Lab kits for girls in Africa; Reduced evidence of volcanism in dinosaur extinction

Ice is two-faced under pressure Forward this email  View in your browser THE WEEK IN PHYSICS: 25–29 APRIL Advertisement Faster Laser Communication with Steering Mirrors Responding to the higher data transmission rates demand, communication via laser beams, terrestrial, ground-to-satellite, and satellite-to-satellite is opening up new possibilities. Different technologies are available to provide the speed and precision needed to keep laser beams stabilized and pointed in the right direction, making sure they reach their targets exactly, over thousands of miles. See our solution » Ice is two-faced under pressure At temperatures and pressures comparable to those of Neptune's interior, water molecules break apart into mobile hydrogen ions and an oxygen crystal with one of two stable structures. Heather M. Hill Commentary: More than conformality lost at APS March Meeting "If physics thought its observer-independent subject matter shielded it" from concerns such as the war in Ukraine, says physicist Philip Phillips, "this meeting proved otherwise." Philip Phillips FROM THE VAULT: December 1960 Structure and evolution of the galactic system The international summer session for astronomers which is summarized below took place last July and August at Nyenrode Castle in the Netherlands. Vera C. Rubin Webinar Live Webinar: Election-pairing mechanism of copper-oxide high temperature superconductivity We use atomic-scale visualization of the response of both charge-transfer energy and superconductive electron-pair density to alternations in unit-cell geometry. Concurrence with theory for hole-doped charge-transfer insulators indicates that charge-transfer superexchange is the electron-pairing mechanism of superconductivity in Bi2Sr2CaCu2O8+x. Register now. International team develops physics lab kits for girls across Africa With practical and low-cost experiment designs, Women Supporting Women in the Sciences aims to encourage students to pursue physics. Ashley Piccone Isotope evidence weakens the role of volcanism in extinction event Ejected materials from the Chicxulub Crater contain sulfur-isotope anomalies. They can't be explained by a volcanic eruption that occurred 66 million years ago. Alex Lopatka Whitepaper Compact lasers expand LIBS applications In this white paper, we introduce a very compact, air-cooled, pulsed laser and show it can be used successfully in conventional Laser Induced Breakdown Spectroscopy (LIBS) experimental set-ups for identifying metals. Read now. FROM THE MAY MAGAZINE Quasicrystals and the birth of the atomic age The first nuclear bomb explosion led to the formation of a novel form of matter, known as a quasicrystal, with an elemental composition that had never been seen before. Luca Bindi and Paul J. Steinhardt Get notified about our webinars and whitepapers Sign up Get Physics Today delivered for just $25 per year Subscribe FEATURED JOBS > Canada Research Chair In Data Analytics  |  The University of Winnipeg > Principal investigator/ Faculty position in experimental quantum optics  |  QuTech Are you hiring? Do you want your job to appear here? Post with Physics Today and select the "Publication" enhancement 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 © 2022 American Institute of Physics. Unsubscribe  |  Email Preferences  |  Privacy Policy  |  Contact Us