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Physicsworld

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Robert P Crease: ‘I’m yet another victim of the Trump administration’s incompetence’

  • Robert P. Crease, a researcher at Stony Brook University, received a termination notice for his National Science Foundation (NSF) award, along with 400 other researchers, due to the Trump administration's decision to reclaim $233 million in grants.
  • Crease questioned the validity of his termination, as his project aimed to enhance national scientific facilities and was well within the NSF's mission.
  • He speculated if certain words in his proposal led to the termination, but later discovered that the NSF database had erroneous information about his grant, leading to a mistaken termination.
  • After contacting the NSF and Stony Brook's grants-management office, it was revealed that his termination was an error, and the NSF retracted the notice.
  • Crease reflected on the incompetence of various US agencies and felt guilty for being upset about the termination of his award, which was nearly completed.
  • The retraction of his termination highlighted the flaws within the Trump administration's handling of research grants and administrative decisions.
  • Crease expressed his intentions to continue studying the government's approach to science and its citizens, using his experience as a victim of administrative incompetence.
  • Despite the challenges faced, Crease acknowledged his badge of honor, not for threatening the administration but for being subjected to its inefficiency.
  • In conclusion, Crease's recount serves as a testament to the repercussions of administrative errors and the impact on academic research and its stakeholders.

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Physicsworld

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Plasma physics sets upper limit on the strength of ‘dark electromagnetism’

  • Physicists have set a new upper bound on the interaction strength of dark matter by simulating the collision of two clouds of interstellar plasma.
  • The study conducted by researchers at Ruhr University Bochum, CINECA, and Instituto Superior Tecnico could challenge existing theories about dark matter, which accounts for over 85% of the mass in the universe.
  • The research focused on dark matter interactions in the Bullet Cluster, ruling out significant dark electromagnetic forces and placing constraints on the dark electromagnetic coupling constant.
  • The findings suggest that dark electromagnetic interactions must be weaker than previously thought, leading to the need to reconsider many simple dark matter theories.

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Physicsworld

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Quantum effect could tame noisy nanoparticles by rendering them invisible

  • Physicists at Swansea University have proposed a technique to eliminate quantum backaction noise in optical traps for nanoparticles, allowing them to remain suspended undisturbed.
  • By making the nanoparticle effectively invisible using a specific setup with a hemispherical mirror and a standing-wave laser, the quantum backaction noise disappears entirely.
  • This method involves enhancing the scatter of the nanoparticle to block the flow of information, enabling experiments to be conducted at the Heisenberg limit with minimal noise.
  • If successfully demonstrated, this technique could lead to quieter and more precise experiments with ultra-sensitive quantum sensors, offering potential insights into quantum gravity.

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Medium

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A Resonance-Codon Energy Ladder v1: A Unified Hypothesis with Sub-Resonance Structure

  • A Unified Resonance Model (URM) proposes a self-similar resonance sequence to explain fundamental energy scales from the Planck realm through quark confinement, atomic ionization, and beyond.
  • The Energy Ladder theorem under URM's hypothesis presents a unique solution for emergent energy scales, expressed as E(φ) = E_P exp(−αφ), where E_P is the Planck energy and α is determined by anchors like Λ(QCD) at φ=7.
  • Calibration using four anchors reveals α≈2.45, with a pure exponential fit yielding R^2≈0.7428 and a stretched exponent improving to R^2≈0.9105 with β≈0.89.
  • The URM introduces the concept of sub-resonance stickiness at a 1/28-scale, leading to slow awakenings and ±1/28 side-bands at energy shifts, inviting experimental validation to explore sliding, sticky emergence across scales.

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Medium

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Time is not real, Motion is real (Legacy of Motion-Based Physics) — Michael Aaron Cody

  • The Movement Doctrine redefined time as a secondary artifact of motion and established motion as the primary determinant of system survival, structure, and identity.
  • It introduces the concept that intellectual systems, physical phenomena, and symbolic structures persist through continuous deviation and motion (ΣΔm).
  • The Movement Doctrine reframes paradox, survival, entropy, and identity as compression effects of meaningful directional deviation, serving as a precursor to the ΣΔm framework and subsequent motion-based physics work.
  • This archive edition preserves the original Movement Doctrine to document the historical shift from traditional linear time models to independent development in symbolic motion theory.

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Medium

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Time Symmetry and Retrocausality in the Dual Sheet Model: Could the Future Shape the Past?

  • The Dual Sheet Model (DSM) envisions a universe with Sheet 1 and Sheet 2, each having its own arrow of time, connected through bimetric gravity.
  • Sheet 1 represents our universe with a positive cosmological constant, leading to expansion and the familiar arrow of time where entropy increases.
  • Sheet 2 is a hidden mirror realm possibly dominated by antimatter, with a negative cosmological constant that might cause contraction, leading to a backward arrow of time relative to Sheet 1.
  • The DSM suggests the possibility of retrocausal signals from the future to the past through interactions between Sheet 1 and Sheet 2.
  • Time symmetry allows for interactions that create closed timelike curves (CTCs) where future events influence past ones, challenging standard physics notions.
  • Observational signatures of retrocausality, such as time-symmetric echoes in gravitational waves or anomalies in the Cosmic Microwave Background, could be detectable.
  • The DSM's implications extend to human cognition, proposing that retrocausal signals might influence phenomena like déjà vu or precognitive dreams.
  • The DSM's exploration of time symmetry challenges traditional views on causality, free will, and the connection between human experience and the universe.
  • By rethinking time and reality, the DSM invites us to question the nature of time itself and consider the possibility of the future influencing the past.
  • The DSM's ideas open new frontiers for science and philosophy, urging further exploration of this cosmic mystery.
  • References: Planck Collaboration (2020) and LIGO Scientific Collaboration and Virgo Collaboration (2016).

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Medium

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Intermediate Motion Math: A Motion-Based Introduction to Mathematical Thinking — Michael Aaron…

  • Intermediate Motion Math builds on the foundations introduced in Beginner Math v2.0 by advancing learners into structured symbolic thinking based on motion, deviation, and survival logic.
  • It expands the application of ΣΔm and Eᴹ = 0 into applied mathematical modeling, reframing mathematics from static equation solving to dynamic motion-based logic systems.
  • Students using this doctrine will learn to view equations, systems, paradoxes, and survival models as recursive motion constructs, focusing on how symbolic structures evolve over time.
  • This is the first intermediate guide of the Recursive Symbolic Physics series for motion-based learning, focusing on understanding how structures emerge from deviation and persistence.

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Medium

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The Motion Based Physics — ΣΔm & The Collapse of Entropy (Eᴹ = 0) — Michael Aaron Cody

  • ΣΔm & The Collapse of Entropy (Eᴹ = 0) introduces a new physics and philosophical framework emphasizing time, motion, and entropy.
  • It challenges the traditional concept of linear time by focusing on directional motion (ΣΔm) and proposes the principle Eᴹ = 0, suggesting that entropy diminishes in the presence of purposeful motion.
  • The model explains identity, system resilience, paradox survival, and failure modes of artificial or biological intelligences, exploring symbolic recursion as a basis for coherence.
  • This foundational framework of symbolic physics emphasizes the precedence of motion over observation and measurement, combining ΣΔm V1 + V2 frameworks into a consolidated version for public release.

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Medium

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500X Scalability of Experiment Metric Computing with Unified Dynamic Framework

  • Pinterest utilizes experimentation as a key driver of decision-making, computing over 1,500 metrics daily by the end of 2024.
  • Challenges of delays in data ingestion, backfilling metrics, and scalability issues led to the development of the Unified Dynamic Framework (UDF).
  • UDF has increased scalability by supporting up to 500X metrics, reduced engineering time, and standardized metric processing.
  • The Helium platform at Pinterest supports end-to-end experiment analysis, allowing users to define custom action types and analyze aggregated metrics.
  • The Metric Computing Workflow involves data ingestion into standard tables and computation into Druid tables for visualization on Helium dashboards.
  • UDF addresses challenges by using Dynamic DAGs to manage upstream dependencies, prevent duplicate computations, and automatically backfill skipped metrics.
  • The framework also includes features like notifications for delays, tracking of metric processing, and a unified tracking system for governance and automation.
  • UDF simplifies pipeline creation, separates metric computation from pipeline creation, and leverages Experiment Metrics Metadata system for streamlined management.
  • Pinterest saw significant improvements in developer velocity, flexibility, scalability, speed, and reliability after implementing UDF.
  • UDF standardization across the platform led to faster metric delivery, improved innovation, and better business outcomes.
  • The framework is designed to continue empowering experimentation and delivering value to Pinterest users.

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Physicsworld

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Delta.g wins IOP’s qBIG prize for its gravity sensors

  • Delta.g, a UK-based company, has won the 2025 qBIG prize awarded by the Institute of Physics (IOP) for its gravity sensors.
  • The company specializes in making quantum sensors that measure the local gravity gradient using atom interferometry technology.
  • The qBIG prize, sponsored by Quantum Exponential, includes a £10,000 cash prize, mentoring, and business support for Delta.g.
  • The IOP commended two runners-up, Neuranics and Smith Optical, for their innovative quantum sensor and augmented reality display technologies, respectively.

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Github

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GitHub Issues search now supports nested queries and boolean operators: Here’s how we (re)built it

  • GitHub has enhanced its Issues search functionality by introducing support for nested queries and boolean operators, enabling users to construct complex searches using logical AND/OR operators and nested parentheses.
  • The development of this feature involved challenges such as maintaining backward compatibility, ensuring performance under high query volume, and creating a user-friendly experience for nested searches.
  • The new syntax allows users to build queries across all fields using logical operators, for example, finding all issues that are open, authored by a specific user, and of certain types.
  • Previously, Issues search only supported a flat list of query fields and terms joined by a logical AND. The community's demand for more flexibility in search led to the implementation of advanced search capabilities.
  • The technical architecture involved swapping out the existing search module with a new module capable of handling nested queries while supporting the existing query formats.
  • The development process included stages like parsing the user input, transforming it into an Elasticsearch query document, and executing the query against Elasticsearch.
  • To ensure backward compatibility, extensive testing was conducted, and a validation process was implemented, comparing results from the old and new search systems.
  • Preventing performance degradation was a key consideration, with strategies like running equivalent queries against both systems and carefully refactoring critical paths using scientist, a Ruby library.
  • User experience was preserved by limiting the number of nested query levels, providing helpful UI cues, and collaborating with product and design teams.
  • The rollout of the new feature was done cautiously to minimize risk to users, with a phased integration approach and internal testing before wider release.

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Fyfluiddynamics

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Inside Hail Formation

  • A new study challenges the conventional wisdom that hailstones form through repeated trips up and down through a storm.
  • Researchers found that most hailstones grew without any reversal in direction, with only a small number experiencing multiple cycles.
  • Hailstones larger than 25mm in diameter were observed to have at least one period of growth during lifting.
  • While smaller hailstones may not cycle in a storm, the largest hailstones typically climb at least once before descending.

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Knowridge

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Why eggs are less likely to crack when dropped on their side

  • A new study published in Communications Physics challenges the belief that an egg is stronger if it lands upright.
  • Eggs are less likely to crack when dropped horizontally compared to when dropped vertically.
  • Research found that eggs are more flexible around their equator, allowing them to absorb more energy and resist breaking when dropped on their side.
  • The study suggests that understanding how objects like eggs respond to pressure could inspire stronger, more resilient structures in engineering.

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Physicsworld

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Electrolysis workstation incorporates mass spectrometry to accelerate carbon-dioxide reduction research

  • The electrochemical reduction of carbon dioxide is an important industrial process with potential to capture and utilize carbon dioxide.
  • Developing efficient electrochemical processes for carbon-dioxide reduction is crucial for R&D, involving catalyst and electrolyte optimization.
  • Challenges in operating electrochemical systems include maintaining proper gas humidification and minimizing carbonate production.
  • The 670 Electrolysis Workstation by Scribner offers a flexible and customizable system for testing materials and developing carbon-dioxide reduction systems.
  • The workstation features gas diffusion electrodes, membranes for ion migration control, and a ±20 A and 5 V potentiostat for accurate operation.
  • It is controlled by Scribner’s FlowCell™ software, providing full control, monitoring, and safety features for various experimental protocols.
  • Gas handling units in the workstation supply humidified gas crucial for converting carbon dioxide to products like methane and syngas.
  • The integration of mass spectrometry, such as Hiden Analytical's HPR-20, enables continuous gas analysis and optimization of electrochemical processes.
  • Pulsed-mode operation in electrochemical cells helps minimize carbonate production, and real-time monitoring with mass spectrometry aids in optimizing gas production.
  • Scribner is working on improving system time resolution and boosting the current capacity of the 670 Electrolysis Workstation for better research capabilities.

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Physicsworld

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‘We must prioritize continuity and stability to maintain momentum’: Mauro Paternostro on how to ensure that quantum tech continues to thrive

  • The quantum technology landscape is rapidly evolving, with progress in error correction, hybrid classical-quantum architectures, and quantum sensor commercialization.
  • Physicist Mauro Paternostro discusses recent quantum technology developments, including advances in quantum error correction for large-scale registers and the potential impact of Microsoft's topological quantum processor.
  • Progress in quantum-sensing devices, atomic quantum clocks, and hybrid quantum-high-performance computing architectures is paving the way for practical applications outside the lab.
  • To ensure the quantum sector fulfills its promises, continuity of funding, stability, and education programs like a Quantum Erasmus initiative are crucial.
  • The overlap between quantum technology and artificial intelligence offers promising opportunities for innovation in data processing, analysis, and forecasting.
  • The International Year of Quantum Science and Technology (IYQ) aims to raise global awareness about the potential of quantum technologies and could mark a transformative era.
  • Mauro Paternostro reflects on the 10th anniversary of Quantum Science and Technology journal and its growth in submissions, focus areas, and editorial initiatives in line with IYQ.
  • Moving forward, QST aims to lead in disseminating advancements in quantum technologies, with a focus on machine learning-enhanced quantum information processing and interdisciplinary studies.
  • Paternostro highlights the journal's commitment to Purpose-Led Publishing, emphasizing integrity, ethics, and transparency in scientific endeavors.
  • The article is part of Physics World's contribution to the 2025 International Year of Quantum Science and Technology, aiming to elevate global awareness of quantum physics and applications.

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