The week in physics: AIP anniversary; Missing seismic signals; Selective ion excitation

AIP marks 90 years of advancing the physical sciences Forward this email  View in your browser THE WEEK IN PHYSICS: 22–26 NOVEMBER Advertisement AR's Easily Serviceable "A" Series Amplifiers These Class "A" amplifiers, designed and manufactured by AR, offer frequency bandwidths of 10 kHz – 400 MHz, and power levels from 25 W – 50 kW. This video shows how efficient it is to service AR's "A" Series amplifiers. Please contact AR's service department before opening your machine from AR to prevent the elimination of the machine's warranty. Learn more. AIP marks 90 years of advancing the physical sciences Though the American Institute of Physics was founded primarily as a publisher, throughout its history it has also sustained programs that serve its member societies and the physics community at large. Skye Haynes, Kat Overland, and Amanda Sulicz Missing seismic signals constrain properties of Earth's mantle Measured waveforms are consistent with poor mixing in the layer's transition zone. Christine Middleton Webinar LIVE WEBINAR: New Standard in Single Photon Detection Single Quantum develops the world's fastest and most sensitive single photon detectors limited only by the laws of physics. In this webinar, we will introduce the operation principle of SNSPDs (superconducting nanowire single photon detectors) and present the newest developments of their technology. Register now. FROM THE VAULT: May 1991 Information is physical There are no unavoidable energy consumption requirements per step in a computer. Related analysis has provided insights into the measurement process and the communications channel, and has prompted speculations about the nature of physical laws. Rolf Landauer A laser selectively kicks carbon out of a foil Experiments and simulations show how the shape of a laser's profile can determine which ions make up the resulting ion beam. Heather M. Hill Webinar LIVE WEBINAR: MICROWAVE FRUIT PHOTONICS AND THE SHAPE OF WATER Pairs of grapes and other similarly sized fruit dimers will often spark in a household microwave oven. Explanations abound, but recent research is showing that simply treating the objects as optically-resonant spheres of water yields surprisingly rich physics, with broad photonics applications. Register now. FROM THE NOVEMBER MAGAZINE A new undersea volcano is born east of Africa Geophysical and oceanographic observations establish how a deep magma chamber fueled an extraordinary eruption. Alex Lopatka Get notified about our webinars and whitepapers Sign up Get Physics Today delivered for just $25 per year Subscribe FEATURED JOBS > Assistant Professor in Astrophysics  |  Oregon State University > Assistant Professor of Physics and Science Education  |  University of Maine at Farmington 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 © 2021 American Institute of Physics. Unsubscribe  |  Email Preferences  |  Privacy Policy  |  Contact Us