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A gene is a stretch of genetic sequence that helps produce a functional product, usually a protein or a functional RNA molecule. Genes are carried in genomes, inherited through reproduction, regulated by cells, and changed by mutation and variation.
A genome is the complete set of genetic material in an organism, cell, organelle, or virus. In cellular life it is usually DNA, organized into chromosomes or other structures, and it includes genes, regulatory sequences, repeated DNA, and other regions that shape inheritance, development, and evolution.
A chromosome is a packaged DNA molecule, together with proteins, that helps cells organize, copy, read, and pass on genetic information. Chromosomes make long DNA usable inside cells and help ensure that inherited instructions are distributed during cell division.
DNA, or deoxyribonucleic acid, is the molecule that stores hereditary instructions in cells and many viruses. Its double-helix structure, base pairing, and organization into genes and chromosomes let organisms copy information, pass it on, and use it to build proteins.
RNA, or ribonucleic acid, is a nucleic acid that helps cells copy, use, regulate, and sometimes store genetic information. RNA molecules can carry protein instructions, form part of ribosomes, deliver amino acids, regulate genes, catalyze reactions, and serve as genetic material in some viruses.
Amino acids are small organic molecules with an amino group, a carboxyl group, and a variable side chain. Cells join them into peptides and proteins, and their side chains help determine protein shape, chemistry, nutrition, and many metabolic roles.
Proteins are large biological molecules made from amino acid chains. Their sequences fold into shapes that let cells build structures, catalyze reactions, carry signals, move materials, defend against disease, and turn genetic instructions into working biology.
Enzymes are biological catalysts that let cells run chemistry fast enough for life. Most are proteins, a few are catalytic RNA, and their folded shapes help them bind specific substrates, lower activation energy, and release products without being used up.
Yeasts are single-celled fungi that live in soil, on plants, on fruit, in fermented foods, and in many human-made processes. Some yeasts turn sugars into carbon dioxide and alcohol, which makes them useful in bread, beer, wine, biotechnology, and research, while other yeasts live quietly in ecosystems or occasionally cause disease.
A heat wave is a period of unusually hot weather that lasts long enough to strain bodies, buildings, power systems, roads, farms, and ecosystems. The danger depends on local climate, humidity, nighttime temperatures, exposure, health, housing, and access to cooling, which is why the same temperature can be routine in one place and hazardous in another.
An electrolyzer uses electricity to split water into hydrogen and oxygen. It is a core technology for producing low-emissions hydrogen when the electricity comes from clean sources, but the system depends on efficient stacks, durable membranes or electrolytes, water treatment, power electronics, gas handling, and careful integration with the grid or renewable power.
A lithium-ion battery is a rechargeable battery that moves lithium ions between two electrodes while electrons travel through an outside circuit. Its high energy density made modern phones, laptops, electric vehicles, power tools, and many grid batteries practical, but the same concentrated energy also requires careful design, charging, thermal management, and recycling.
Wave energy captures the up-and-down, back-and-forth, and pressure-driven motion of ocean waves and turns it into useful electricity or mechanical work. It is a promising form of marine energy for coastal and island settings, but devices must survive harsh saltwater conditions, storms, maintenance challenges, and grid-connection costs before they can scale widely.
Floating offshore wind puts large wind turbines on buoyant platforms instead of fixed foundations. The idea opens windy deep-water areas that are hard to reach with seabed-mounted turbines, but it also adds demanding engineering around motion, mooring lines, dynamic cables, ports, vessels, ocean users, and grid connection.
Hydropower makes electricity from moving water, usually by sending river flow through turbines connected to generators. It can be a steady renewable source, a flexible grid resource, or a giant battery through pumped storage, but it also reshapes rivers and must be judged with ecological, safety, and community impacts in view.
Floating solar, also called floating photovoltaics or floatovoltaics, mounts solar panels on buoyant structures over reservoirs, ponds, canals, and other water bodies. It can generate clean electricity without occupying extra land, but it brings special engineering, ecological, permitting, and water-management questions.
Agrivoltaics is the practice of combining solar photovoltaic generation with farming, grazing, or habitat on the same land. Instead of treating solar arrays and agriculture as automatic competitors, agrivoltaic design asks whether shade, spacing, height, crops, animals, and farm operations can be planned together.
Direct air capture, or DAC, is a technology family that separates carbon dioxide from ordinary air. The captured CO2 can be stored underground or used in products, but the climate value depends on clean energy, durable storage, careful accounting, and deep emissions cuts happening at the same time.
Vehicle-to-grid, or V2G, is a form of bidirectional electric-vehicle charging that lets a parked EV send power back to the electric grid. It turns compatible vehicles and chargers into flexible energy resources while still needing to protect the driver's mobility, the battery, the building, and the grid.
Grid-enhancing technologies are tools that help existing transmission lines carry electricity more efficiently and reliably. They combine sensors, software, controls, and planning methods so grid operators can see real limits, reroute power, reduce congestion, and connect more generation before every constraint becomes a new wires project.
A heat-transfer process that lets surfaces lose thermal energy by emitting infrared radiation, sometimes cooling buildings, materials, or landscapes without active refrigeration.
A storage system that saves energy as heat or cold, then releases it later for buildings, industrial processes, district heating, or sometimes electricity generation.
A geothermal energy approach that creates or improves underground fluid pathways so hot rock can provide power or heat beyond naturally permeable geothermal fields.
Energy storage designed to deliver power for many hours, days, or longer so electric grids can ride through renewable lulls, demand peaks, and outages.
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