Pioneering

Three years ago Christopher Havens, who has been serving a prison sentence of more than two decades for murder, published a discovery in number theory from his cell. A significant class of fractions, he and three co-authors showed, often maintains a regular structure after being transformed algebraically. Havens’s achievement was singular in another respect: he did not have access to computers, which mathematicians commonly program to tackle aspects of such calculations, so he painstakingly pieced his research together by…

Researchers have discovered a new experimental technique to study electron spin properties in 2D quantum materials, overcoming a longstanding challenge and potentially enabling the development of advanced computational and communicational technologies based on these materials. Credit: Jia Li/Brown UniversityBy observing spin structure in “magic-angle” <span class="glossaryLink" aria-describedby="tt" data-cmtooltip="<div class=glossaryItemTitle>graphene</div><div…

This image shows the huge galaxy cluster MACS J1149.5+223, whose light took over 5 billion years to reach us. The huge mass of the cluster is bending the light from more distant objects. The light from these objects has been magnified and distorted due to gravitational lensing. The same effect is creating multiple images of the same distant objects. Credit: NASA, ESA, S. Rodney (John Hopkins University, USA) and the FrontierSN team; T. Treu (University of California Los Angeles, USA), P. Kelly (University of California…

Figure 1. Conceptual diagram showing muonic atoms and quantum electrodynamic (QED) effects. An international team of researchers has successfully conducted a proof-of-principle experiment to verify strong-field quantum electrodynamics with exotic atoms. The experiment involved the use of high-precision measurements of the energy spectrum of muonic characteristic X-rays emitted from muonic atoms using a state-of-the-art X-ray detector. Credit: RIKENResearchers have successfully conducted an experiment to verify…

Mary Turner, considered the first lady of rock radio in Los Angeles on station KMET-FM, has died. She was 76.Turner died Tuesday at her Beverly Hills home after a long battle with cancer, according to Jarrett Bostwick, executor of her estate.Through the 1970s and early 80s, Turner was regarded as the most-listened to female voice in radio. Known as “The Burner” — a moniker given to her by Peter Wolf of the J. Geils Band — she is best remembered by Los Angeles baby boomers for her years on KMET, the iconic FM outlet that…

Last month, the US National Ignition Facility (NIF) fired its lasers up to full power for the first time since December, when it achieved its decades-long goal of ‘ignition’ by producing more energy during a nuclear reaction than it consumed. The latest run didn’t come close to matching up: NIF achieved only 4% of the output it did late last year. But scientists didn’t expect it to. Building on NIF’s success, they are now flexing the programme’s experimental muscles, trying to better understand the nuclear-fusion…

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Margaret Busby, who was Britain’s first Black female publisher, has been named the new president of English PEN.The editor, writer, broadcaster and literary critic takes over the role from author and human rights lawyer Philippe Sands. English PEN is one of the world’s oldest human rights organisations and is the founding centre of PEN International, a worldwide writers’ association with 147 centres in more than 100 countries.Born in Ghana and educated in the UK, Busby became Britain’s youngest and first Black female…

World Quantum Day is an international, community-driven event on April 14 to spark interest and generate enthusiasm for quantum mechanics. The National Quantum Coordination Office, part of the White House Office of Science and Technology Policy, is excited to participate in World Quantum Day, along with agencies across the Federal government. Credit: National Quantum Coordination Office<span class="glossaryLink" aria-describedby="tt" data-cmtooltip="<div…

Image: Who is Danny/Adobe Stock Joe Burton, CEO of digital identity authentication company Telesign, spoke with TechRepublic about how the “fuzzy” realm between statistical analysis and artificial intelligence can fuel global, fast and accurate identity management. Joe Burton, CEO of Telesign. Telesign may have been instrumental in the development of two-factor authentication, but it has a marginal share of a market dominated by companies like Persona, OpenID, Okta, Duo Security and LastPass. Burton said the…