Science A–Z: W· page 17

Streaming services let you watch movies, shows, and music anytime, anywhere. How do they work?

Streptococcus bacteria are tiny organisms that can cause infections like strep throat and pneumonia. Learn how they work and why they matter.

Discover what stress hormones are, why they matter, and how they influence your body during tough times.

Stress management skills can change your life. Learn how they work and why they’re essential for everyone.

Stricter regulations can shape industries, everyday life, and even the environment. Discover how they work and why theyre important.,

Discover how strike-slip faults shape the Earth's surface and influence natural events like earthquakes.

Discover what strings are in coding and how they help us work with letters and words.

Discover the fascinating world behind stripes and swirls — from nature to man-made creations.

Strong emotions can change your day, your relationships, and even your decisions. Let's explore what makes them so powerful.

Discover how different types of bonds compare and why some are stronger than others.

Discover the world of materials that can withstand extreme forces, from everyday objects to futuristic inventions.

Discover the mysterious world of strontium atoms and how they contribute to our everyday lives.

Discover how structural batteries are changing engineering, and why next-generation nuclear energy is becoming a key player in sustainable power.

Structural breaks are sudden changes that can reshape patterns in data — from economics to science. Learn how they work and why they matter.

Galaxies are not always calm — sometimes they experience dramatic changes. Discover what causes these cosmic transformations.

Discover how deep-rooted economic forces shape the way societies grow, change, and sometimes struggle.

Discover how structural elements form the foundation of everything from skyscrapers to simple houses.

Discover how the building blocks of everything from bridges to buildings are made strong through special structural features.

Discover how big changes in systems happen slowly over time, shaping everything from economies to ecosystems.

Discover how buildings, bridges, and even space stations stay standing — it all starts with structural systems.

Explore how structure formation effects influence everything from the universe to everyday objects.

Discover how structured frameworks help organize complex ideas, from everyday routines to advanced scientific theories.

Student cards are more than just plastic — they’re keys to access, identity, and convenience in school life. Discover how they work and why every student needs one.

Student outcomes measure how well students are doing in their education. Understanding them can help improve learning for everyone.

Students are more than just people in classrooms — they're the heart of learning. Discover what makes them unique.

Study rooms are dedicated areas designed to help people concentrate, learn, and succeed. They can be found in schools, libraries, and even at home.

Discover the mysterious middle ground between stars and planets — sub-brown dwarfs are tiny, dim cosmic objects that challenge our understanding of space.

Discover what subatomic particles are and how they form everything around us, from atoms to galaxies.

Discover how subcortical structures control emotions, movements, and more without you even realizing it.

Discover how subdomains work and why they're essential for organizing websites.

Submarine landslides can reshape the ocean floor — but what causes them, and how do they affect life on Earth?

Explore the concept of subordinates, their roles, and how they influence relationships in various settings.

Subsidies are tools used by governments to support various sectors. Discover how they work in different ways.

Subsidy shifts are changing who gets financial support, and they can affect the economy in big ways.

Explore how substances and energies shape everything from the smallest particles to the largest phenomena in our universe.

Explore what substances are, from everyday materials to the smallest particles that make up our world.

Discover what lies between planets and stars—substellar objects that challenge our understanding of the universe.

Substitution reactions are essential in chemistry, allowing atoms or groups to switch places. Discover how they shape everyday materials and chemical processes.

Discover how substorms create dazzling auroras and what causes these cosmic events in Earth's magnetosphere.

Explore how materials from deep within the Earth can push their way to the surface, creating fascinating geological features.

Dive into the hidden world beneath our feet, where water, oil, and gas are stored in mysterious underground spaces.

Tiny patterns that manipulate light in surprising ways — explore how they work and why they matter.

Tiny structures that manipulate light in surprising ways, opening up new possibilities in science and technology.

Subway systems connect millions of people every day, but how do they work? Explore the underground networks that make modern cities run smoothly.

Explore how subways work, their history, and why they are vital to urban life.

Dive into the world of sound with subwoofers and woofers, and discover how they bring music to life.

Explore the fascinating world of sudden increases and how they happen around us every day.

Suicidal thoughts can feel overwhelming, but understanding them is the first step toward healing. Explore what they are and why they happen.

Sulfonylureas are powerful drugs that help manage diabetes, but what exactly do they do and how do they work?

Discover how angles work together inside different shapes, from triangles to polygons.,

Sun sensors are essential tools that help spacecraft orient themselves by detecting the direction of sunlight. Discover how they make space travel possible.

Sunbeams can look like glowing lines, but why? Explore the science behind this beautiful phenomenon.

Sunburns happen when your skin gets too much UV radiation. But why does it feel so hot and painful afterward?

Discover what makes super helpers special and how they help us understand complex problems more easily.

Explore the fascinating world of super powers, from real-life abilities to fictional heroes.

Discover the world of small colored blocks and their surprising uses across different fields.

Discover what makes super smart robots different from regular robots — and how they might change our future.

Discover the power behind shields that can withstand incredible forces, from ancient myths to modern science.

Discover the world of doctors who go beyond the ordinary, diving deep into every detail of their patients' health.

Super-earths are fascinating exoplanets that might hold the key to finding life beyond Earth. Learn what they are and why they matter.

Discover the magical side of campfires that go beyond just roasting marshmallows.

Discover the fascinating world of thumbs that can feel the smallest vibrations — and why it matters.

Discover how superbuilding blocks could revolutionize construction and architecture.

Dive into the world of quantum computing by learning about superconducting qubits, the building blocks of some of today's most powerful quantum computers.

Discover how vapors can remain liquid even below their freezing point, creating fascinating natural and scientific phenomena.

Discover how superellipses combine the smoothness of circles with the sharp edges of rectangles, creating a unique geometric form.

Discover the incredible power hidden within superhot rocks and how they shape our planet.

Superhydrophilic surfaces attract water like magnets — here's how they work and why they matter.

Discover how superlenses can see beyond the limits of traditional optics, revealing a hidden world in stunning detail.

Explore the mysterious world of supernatural phenomena and how they appear in everyday life.

Discover how scientists track the explosive lives of stars through supernova surveys, revealing secrets of the universe.

A supersaturated state occurs when a solution holds more dissolved solute than theoretically possible at equilibrium, creating a fragile, energetic condition ready to release energy or precipitate.

Discover why some people become superstars, and what sets them apart from the rest.

Explore the world of dietary supplements, from basic vitamins to complex nootropics, and learn how they fit into a balanced lifestyle.

Discover what happens when the amount of goods available starts to shrink, and how it affects everyday life.

Supply-side rigidities are barriers that make it hard for businesses to grow or change. Discover how they affect the economy.

Understanding how support for regional proxies works can help explain political dynamics and strategic decisions across regions.

Support levels are like invisible floors in trading. Discover how they help traders make decisions.

Support networks are groups of people who help each other through life's challenges. Discover how they make a difference.

Discover how tiny flaws on surfaces affect everything from everyday objects to cutting-edge technology.

Surface processes are the forces that continuously reshape our planet's landscape, from mountains to valleys.

Surface waves are the ripples you see on water, but they also shake the ground during earthquakes. Lets dive into their fascinating world.,

Surfactants are everywhere — from your morning coffee to the bubbles in your bath. Discover how they work and why they matter.

Discover the world of surgeons — from their training to their everyday work inside hospitals.

Discover the hidden power of surprise circuits, from simple devices to complex systems.

Explore the hidden ways governments and organizations track our movements and behaviors.

Explore the tools and methods surveyors use to measure land, build structures, and understand our environment.

Discover the art and skill behind sushi chefs, from preparing fresh fish to crafting delicate rolls.

Suspension bridges are among the most elegant structures in engineering. Discover how they work and why they're used for big crossings.

Sustainable space programs ensure that our journey into the cosmos can continue for generations without depleting Earth’s resources.

Discover how couples can reduce their environmental impact while celebrating love.

Discover how sustained support mechanisms help systems stay stable over time, from everyday life to complex processes.

Swap rates are the foundation of many financial deals, but what do they really mean? Find out how they work in everyday life.

Swaps are financial tools used to exchange cash flows, helping people manage risk in the world of money and investments.

Sweat glands are the tiny but powerful structures that help your body stay cool. Discover how they work and why they matter.

Explore the world of sweet, fizzy beverages that taste like soda but have their own unique twists.

Swing states can decide the outcome of an election. But what exactly are they, and why do politicians focus so much on them?

Discover the mesmerizing world behind swirling ribbons — from the sky to the sea, these patterns shape our everyday experiences.

Symbols are more than just signs — they carry deep meaning across cultures and time. Let's explore how symbols shape our understanding of the world.

Explore how symbolic systems help us make sense of the world through signs, symbols, and shared meanings.

Sympathetic ganglia are key players in the body's stress response, but what exactly do they do? Find out here.

Explore the neural routes that trigger your fight-or-flight response, connecting the brain to vital organs during stress.

Symptoms are clues your body gives you when something is wrong. Learn how they help doctors diagnose diseases.

Discover how neurons talk to each other through tiny bridges called synaptic connections.

Discover how systems communicate through notifications — some happen instantly, others wait for their turn.

Synergists help muscles work better — but what exactly are they, and why do they matter?

Discover what synthetic reeds are, how they differ from natural ones, and why they matter to musicians and instrument makers.

Explore how governments use checks and balances to prevent any one group from becoming too powerful.

System vulnerabilities are hidden weaknesses that can be exploited by hackers. Understanding them helps keep your data safe.

Discover what systematic errors are and how they can affect measurements in science and everyday life.

Discover how systematic procedures bring order to chaos, from everyday tasks to scientific research.

Discover how rules and conventions shape our understanding of the world, from everyday habits to complex systems.

Discover how small problems can lead to huge collapses, from economies to ecosystems.

Systems of differential equations model how multiple changing quantities interact, from predator populations to electrical circuits.

Tactical decisions shape the outcome of battles, businesses, and even everyday life. Discover what they are and how they work.

Discover how tagged unions let data be multiple things at once, making code more flexible and powerful.

Tailors shape our clothing, but what exactly do they do? Explore the world of tailoring and how it has evolved over time.

Discover the science behind taking breaks and how they can improve your productivity and well-being.

Discover how melatonin supplements help you sleep better, from their natural origins to their use in modern medicine.

Tangles are more than just knots — they're complex structures found in nature, math, and even your hair. Dive into the world of tangles and discover how they work.

Discover how target molecules play a crucial role in drug development and biological processes.

Targeted interventions focus on specific groups or needs to create more effective solutions. Discover how they work at different levels of understanding.

Tasks are more than just things to do — they're essential tools that help us organize our time, energy, and goals. Discover how tasks shape everything from daily routines to major projects.

Discover how taste receptors help you experience the world of flavors around you, from sweet to bitter.

Discover how taste signals help us experience flavors and why they matter in our daily lives.

Discover the world of tasters, from casual food lovers to professional judges who shape how we experience flavor.

Tau tangles are a key player in brain diseases like Alzheimer's. Discover how they form and why they're so dangerous.

Discover how tax advantages can save you money and change your financial future, from simple savings to complex strategies.

Explore the history, roles, and significance of tax collectors across different eras, from biblical times to modern bureaucracies.

Tax deferral rules let you delay paying taxes on certain income, potentially saving money over time. But how exactly do they function in practice?

Discover what tax havens are, how they work, and why so many people use them to save money.

Tax incentives are tools used by governments to encourage certain behaviors, like investing or hiring. Here's how they work and why they're important.

Discover how tax reliefs can save you money and simplify your finances. Learn the basics in just a few minutes.

Discover the basics of taxation and how it affects individuals, businesses, and governments.

Discover the basics of taxation systems and how they shape economies and daily life.

Discover how people learn from each other across borders through teaching and training exchanges.

Discover how technical improvements shape the world around us, from everyday tools to groundbreaking innovations.

Discover how big changes in technology shape our world, from ancient tools to modern computers.

Discover how technological tools help us solve problems, create new possibilities, and transform everyday life.

Explore how technology studies examine the relationship between people and technology, shaping our modern world.

Tectonic forces shape our planet, from mountain ranges to earthquakes. Explore how these hidden powers work.

Tectonic plates are massive slabs of rock that shape our planet. Learn how they move and cause earthquakes, mountains, and volcanic eruptions.

Discover what makes the teen years unique, from emotional changes to social shifts.

Discover how telecommunication systems enable communication across distances, from ancient messages to modern internet connections.

Telecommunications is the art of sending messages across distances — from ancient signals to modern smartphones.

Teleoperated robots are controlled from afar — but what makes them special, and how do they change the way we interact with machines?

From simple voice calls to smart devices, telephones have evolved over time. Discover how this invention made communication faster and more accessible.

Discover how telephoto lenses bring distant objects closer, making them appear larger in your photos.

Discover how temperate and humid climates shape life on Earth, from the plants we grow to the weather patterns we experience daily.

Discover the characteristics that define temperate rainforests and how they differ from other forest types.

Discover what sets temperate zones apart from other climate regions around the world.

Discover how temperature differences shape our world, from weather patterns to life on Earth.

Temperature inversions can make cold weather feel even more intense. Discover what happens when warm air traps in cold air below.

Explore how things change over time — from the ticking of a clock to the movement of stars.

Discover the magic of temporary magnets—why they stick, why they let go, and how they're used in everyday life.

Explore the strange world of higher dimensions, where time and space take on new forms.

Tension forces are invisible but powerful — they hold bridges, ropes, and even your favorite clothes together. Learn how they work at every level.

Tenures are more than just jobs — they're systems that shape power, influence, and stability across centuries.

Terms are the basic units of language, used to convey meaning in both everyday conversation and complex ideas.

Discover the world of terpenes, the natural compounds that give plants their unique scents and flavors.

Discover the unique features that define terrestrial planets, like Earth.

Explore how invisible lines become real barriers, dictating resource control, political sovereignty, and daily life.

Territorial clashes happen when groups or countries fight over land. These conflicts can change the course of history.

Territories shape the world we live in, from ancient empires to modern maps. Discover what they really are.

Textbooks are more than just books — they're tools that shape how we learn. Explore their role in education across different levels.

Discover how textural layers shape everything from paintings to soil, adding depth and complexity to the world around us.

Discover how texture synthesis algorithms recreate the look of natural or artificial patterns with just a small sample. From art to science, these techniques are used everywhere.

Discover how thalamocortical pathways act as highways for signals between the thalamus and cortex, influencing perception, memory, and more.

Discover the names of the most common 3D shapes, from cubes to spheres.

Discover how the adrenal glands work and why they are essential for your body's balance.

Explore how Paula Rego uses ambiguity to tell complex, emotional stories through her art.

Discover how our minds hide truths from us and why these invisible gaps shape our decisions every day.

A look at the first governing document of the United States and how it shaped early American history.

Explore how engineering uses math, science, and creativity to solve real-world problems.

Explore the fundamental components that make up everything from atoms to universes.

From atoms to molecules, discover how the smallest parts make up the world around us.

Discover the hidden effects of not getting enough rest, from everyday struggles to long-term health issues.

Explore the groundbreaking contributions of Atul Gawande, a modern leader in medicine and public health.

Explore the groundbreaking work of Jianjun Jin and how it has shaped modern science.

Explore how the Islamic Golden Age shaped science, mathematics, and philosophy across the world.

Discover how Timnit Gebru is reshaping the field of artificial intelligence through her impactful research and advocacy.

A US-Iran ceasefire could bring peace — but it might also hide deeper problems. What are the hidden dangers?

Pursuing extended life through biohacking can offer incredible benefits—but it also comes with unexpected dangers.

Degrees of freedom are essential for understanding statistical analysis, but what exactly do they mean? Explore this concept across different learning levels.

Fitness isn't just about hitting the gym — it comes in many forms. Discover the different types of fitness and how they can benefit your health.

Explore the difference between what we know we don't know, and what we don't know we don't know, and how this shapes our understanding of the world.

From biased decisions to job loss, AI raises questions about fairness and responsibility. Explore the moral challenges of intelligent machines.

Discover how the earth moves through four main fault types, from small tremors to powerful earthquakes.