Science and Technology

Grasping Net Energy within Fusion ProcessesNuclear fusion aims to produce more energy from fusion reactions than the energy required to initiate and sustain them. This goal is often described as net energy gain, meaning the fusion output exceeds the input at a defined system boundary. Scientists distinguish between: Scientific breakeven: the fusion plasma produces as much energy as the energy directly delivered to it. Engineering breakeven: the entire facility, including power systems and auxiliary equipment, produces net electricity. Reaching engineering breakeven is the ultimate milestone for fusion as a power source, and progress toward it has accelerated over the past…

Industrial Internet of Things, widely known as Industrial IoT or IIoT, has progressed from simple connectivity and oversight into a strategic backbone for smarter operations, and this shift is seen most clearly in the departure from reactive and preventive maintenance toward predictive maintenance paired with rising degrees of operational autonomy, a change propelled not by hype but by tangible economic, technological, and operational pressures shaping contemporary industries.Constraints Inherent in Conventional Maintenance ApproachesFor decades, industrial assets were maintained using either reactive or preventive approaches. Reactive maintenance fixes equipment after failure, while preventive maintenance relies on scheduled servicing based on time or…

Understanding Net Energy in FusionNuclear fusion aims to produce more energy from fusion reactions than the energy required to initiate and sustain them. This goal is often described as net energy gain, meaning the fusion output exceeds the input at a defined system boundary. Scientists distinguish between:Scientific breakeven: the fusion plasma yields energy equal to the amount directly injected into it.Engineering breakeven: the full installation, encompassing its power infrastructure and supporting systems, generates surplus electricity.Achieving engineering breakeven stands as the key benchmark for fusion to function as a practical energy source, and advances toward this goal have notably accelerated over…

Industrial Internet of Things, often called Industrial IoT or IIoT, has evolved from basic connectivity and monitoring into a strategic foundation for intelligent operations. One of the most visible shifts in this evolution is the move away from reactive and preventive maintenance toward predictive maintenance, combined with increasing levels of operational autonomy. This transition is not driven by hype, but by clear economic, technological, and operational realities facing modern industries.Constraints Inherent in Conventional Maintenance ApproachesFor decades, industrial assets were maintained using either reactive or preventive approaches. Reactive maintenance fixes equipment after failure, while preventive maintenance relies on scheduled servicing based…

Software supply-chain attacks have moved from a niche security concern to one of the most disruptive forces shaping modern software development. By targeting the tools, libraries, and services that developers trust, attackers can compromise thousands of organizations through a single weak link. High-profile incidents over the past few years have fundamentally altered how teams design, build, and maintain software, pushing security earlier and deeper into the development lifecycle.Gaining Insight into Software Supply-Chain AttacksA software supply-chain attack occurs when attackers infiltrate the development or distribution process rather than directly attacking the end application. Instead of breaking into a single system, they…

Software supply-chain attacks have evolved from a niche worry into a major force reshaping contemporary software engineering, as adversaries exploit the trusted tools, libraries, and services developers rely on, enabling a single vulnerability to expose countless organizations, while high-profile breaches in recent years have transformed how teams architect, create, and sustain software, driving security considerations much earlier and more deeply into the entire development process.Understanding Software Supply-Chain AttacksA software supply-chain attack occurs when attackers infiltrate the development or distribution process rather than directly attacking the end application. Instead of breaking into a single system, they compromise shared components such as…

Quantum computers hold the potential to deliver exponential acceleration on specific tasks, yet their components remain extraordinarily delicate, with qubits—quantum bits—reacting intensely to environmental noise such as thermal shifts, electromagnetic disruptions, and flaws within control mechanisms; even minimal interference can trigger errors that rapidly undermine an entire computation.Quantum error correction (QEC) addresses this challenge by encoding logical qubits into entangled states of multiple physical qubits, allowing errors to be detected and corrected without directly measuring and collapsing the quantum information. Over the past decade, several QEC approaches have moved from theory to experimental demonstrations, with measurable improvements in error rates,…

Quantum computers hold the potential to deliver exponential acceleration on specific tasks, yet their components remain extraordinarily delicate, with qubits—quantum bits—reacting intensely to environmental noise such as thermal shifts, electromagnetic disruptions, and flaws within control mechanisms; even minimal interference can trigger errors that rapidly undermine an entire computation.Quantum error correction (QEC) tackles this issue by embedding logical qubits within entangled configurations of numerous physical qubits, enabling the identification and correction of faults without directly observing and collapsing the underlying quantum data. During the last decade, various QEC methods have progressed from theoretical constructs to practical demonstrations, yielding notable gains in…

Obesity is increasingly recognized not as a simple result of willpower or a cosmetic issue, but as a complex, chronic health condition with biological, behavioral, social, and environmental drivers. That recognition has driven a substantive shift in prevention, clinical care, public policy, and research. This article explains the reasons for the change, summarizes evidence and examples, describes new tools and models of care, and considers challenges and implications for patients, clinicians, and societies.What obesity is and why it mattersObesity is usually defined by body mass index (BMI) thresholds (BMI ≥30 kg/m² for adults), but BMI is a crude measure that…

Artificial intelligence systems are increasingly used to generate scientific results, including hypotheses, data analyses, simulations, and even full research papers. These systems can process massive datasets, identify patterns faster than humans, and automate parts of the scientific workflow that once required years of training. While these capabilities promise faster discovery and broader access to research tools, they also introduce ethical debates that challenge long-standing norms of scientific integrity, accountability, and trust. The ethical concerns are not abstract; they already affect how research is produced, reviewed, published, and applied in society.Authorship, Attribution, and AccountabilityOne of the most pressing ethical issues centers…