Science and Technology

Artificial intelligence workloads are transforming data centers into extremely dense computing environments. Training large language models, running real-time inference, and supporting accelerated analytics rely heavily on GPUs, TPUs, and custom AI accelerators that consume far more power per rack than traditional servers. While a conventional enterprise rack once averaged 5 to 10 kilowatts, modern AI racks can exceed 40 kilowatts, with some hyperscale deployments targeting 80 to 120 kilowatts per rack.This rise in power density inevitably produces substantial heat. Traditional air cooling systems, which rely on circulating significant amounts of chilled air, often fail to dissipate heat effectively at such…

Retrieval-augmented generation, commonly known as RAG, merges large language models with enterprise information sources to deliver answers anchored in reliable data. Rather than depending only on a model’s internal training, a RAG system pulls in pertinent documents, excerpts, or records at the moment of the query and incorporates them as contextual input for the response. Organizations are increasingly using this method to ensure that knowledge-related tasks become more precise, verifiable, and consistent with internal guidelines.Why enterprises are moving toward RAGEnterprises face a recurring tension: employees need fast, natural-language answers, but leadership demands reliability and traceability. RAG addresses this tension by…

Dreaming is a nearly universal human experience, with most individuals drifting into several dreams each night, although what they see, how vivid it feels, and what they later remember can differ greatly. Researchers investigate dreams to explore how the brain handles memory, emotion, creativity, and overall activity. Although no single, definitive explanation clarifies why dreaming occurs, a growing body of evidence from neurobiology, psychology, evolutionary perspectives, and clinical research suggests a multifaceted set of purposes and underlying processes.How the brain operates while dreamingDreams are most vivid during rapid eye movement (REM) sleep, although dreams also occur in non-REM sleep. Key…

Earth’s core may contain vast hidden reserves of hydrogen, reshaping theories about planet’s water origins. Beneath our feet lies a hidden reservoir that could dwarf all of Earth’s oceans. The discovery could transform our understanding of how Earth formed and where its water came from.Deep beneath the crust and mantle, at depths far beyond the reach of any drilling technology, Earth’s core stands as one of the planet’s most inaccessible realms; however, emerging research indicates that this hidden, extreme environment might conceal a remarkable secret: an immense reserve of hydrogen that could surpass the total volume of all the water…

Large foundation models have dominated public attention in artificial intelligence due to their broad capabilities, massive training datasets, and impressive performance across many tasks. However, a parallel shift is underway. Smaller, specialized AI models are increasingly competitive by focusing on efficiency, domain expertise, and practical deployment advantages. Rather than replacing foundation models, these compact systems are reshaping how organizations think about performance, cost, and real-world impact.What Characterizes Compact, Purpose-Built AI ModelsCompact, purpose-built models are created to address tightly defined objectives. They generally incorporate fewer parameters, draw on carefully curated training datasets, and concentrate on specific sectors or functions, spanning medical…

Why hydration mattersWater is essential to every cell, tissue, and organ, playing roles that include regulating temperature, transporting nutrients, eliminating waste, sustaining blood volume and pressure, and enabling biochemical processes. Even minor fluid deficits can influence physical performance, mental clarity, digestion, and overall mood. Since the sensation of thirst often appears after the body already needs fluids, many individuals remain mildly dehydrated without realizing their gradual decline in function.How much hydration does one truly require?Recommendations vary by age, sex, activity, climate, and health status. Typical reference points:Average daily total water intake (foods + beverages): about 3.7 liters for men and…

OpenAI intends to roll out advertising inside ChatGPT, delivering tailored promotional content shaped by each user’s interactions. This step represents a notable change in how conversational AI platforms might produce revenue and engage with their audiences.The announcement marks a fresh chapter for ChatGPT, a platform that has swiftly expanded as a favored resource for providing answers, supporting tasks, and producing content, and although OpenAI has traditionally depended on subscription income from offerings such as ChatGPT Plus, the move to introduce ads reflects a wider plan to generate revenue from the free-tier experience.How advertising will function inside ChatGPTOpenAI indicates that advertisements…

Health anxiety—worrying excessively about having or developing a serious illness—is common at varying degrees. For many people the internet, social media, and symptom-checking apps are primary sources of health information. While accessible information can empower patients, it can also amplify and maintain anxiety. This article explains how and why information often makes health anxiety worse, illustrates with examples and data-based patterns, and offers practical strategies for individuals and clinicians.How are health anxiety and cyberchondria defined?Health anxiety ranges from occasional worry to persistent, distressing preoccupation that disrupts life. When internet use turns reassurance-seeking into a driver of anxiety, clinicians often use…

A safer path forward for lithium-ion batteriesGroundbreaking advances in battery chemistry are redefining the balance between safety and performance, and a novel electrolyte formulation devised by researchers in Hong Kong presents a compelling path to reducing fire hazards while keeping existing lithium-ion battery production methods intact.Lithium-ion batteries have quietly evolved into essential components of everyday technology, energizing smartphones, laptops, electric vehicles, e-bikes, medical devices and a vast range of tools that define modern living. Although known for strong performance and dependable operation, these batteries also possess an intrinsic hazard that has grown more apparent as their adoption has widened. Fires…

Artificial intelligence moved from promise to pressure point in 2025, reshaping economies, politics and daily life at a speed few anticipated. What began as a technological acceleration has become a global reckoning about power, productivity and responsibility.How AI transformed the world in 2025 and what the future may bringThe year 2025 will be remembered as the point when artificial intelligence shifted from being viewed as a distant disruptor to becoming an unavoidable force shaping everyday reality, marking a decisive move from experimentation toward broad systemic influence as governments, companies and citizens were compelled to examine not only what AI is…