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2050 topics available. Showing 1945-1968 on page 82 of 86.
Machine learning is a branch of artificial intelligence in which computer systems learn patterns from data instead of being explicitly programmed for every rule. It powers recommendations, search ranking, fraud detection, speech recognition, medical imaging tools, forecasting, translation, robotics, and many modern AI systems.
Lions are large cats known for social prides, powerful hunting, male manes, loud roars, and conservation challenges across African and Asian landscapes.
The Lighthouse of Alexandria, also called the Pharos, was a monumental tower built on the island of Pharos in Ptolemaic Egypt to guide ships into Alexandria's harbor and later remembered as one of the Seven Wonders of the Ancient World.
The Library of Alexandria was the most famous library of the ancient Mediterranean, created under the Ptolemies in Egypt as part of a royal research center and remembered today as a symbol of collected knowledge, scholarship, loss, and historical uncertainty.
Lenovo is a global technology company known for personal computers, ThinkPad laptops, Motorola smartphones, tablets, workstations, servers, storage, edge infrastructure, services, and AI-enabled devices and solutions.
The Leaning Tower of Pisa is the marble bell tower of Pisa Cathedral, famous for its unintended tilt caused by weak ground and for the centuries of engineering, restoration, and cultural myth that turned a structural problem into a global landmark.
A keystone species is a species whose effect on an ecosystem is unusually large compared with its abundance, so changes to its population can reshape food webs, habitats, and biodiversity.
The James Webb Space Telescope is a large infrared space observatory that studies early galaxies, star formation, exoplanet atmospheres, and objects across the universe from a stable observing region near the Sun-Earth L2 point.
The Internet of Things, or IoT, is the network of physical objects that sense, compute, connect, and exchange data. It links everyday devices and industrial equipment to software systems that can monitor conditions and trigger actions.
The International Space Station is a crewed laboratory in low Earth orbit where partner space agencies test technology, study life in microgravity, observe Earth, and learn how humans can live and work away from the planet for long periods.
Interest rates are prices for borrowing or lending money over time. They shape savings, loans, mortgages, bonds, business investment, exchange rates, inflation, asset values, and central bank policy.
Intel is a semiconductor company known for PC processors, data-center CPUs, networking chips, AI accelerators, advanced manufacturing, and its effort to build a larger foundry business for customers that need leading-edge chip production.
Inflation is a sustained rise in the overall price level, reducing the purchasing power of money and influencing wages, savings, borrowing costs, business decisions, government budgets, and central bank policy.
The Industrial Revolution was the long shift from economies centered on farming and hand production toward machine manufacturing, fossil-fuel energy, factories, and industrial cities. It began in Britain in the eighteenth century, spread unevenly across the world, and reshaped work, wealth, transport, family life, empire, and the environment.
The immune system is the body's layered defense network, using barriers, cells, proteins, inflammation, targeted responses, and memory to recognize danger, fight infections, remove abnormal cells, and avoid damaging healthy tissue.
IBM is an enterprise technology company focused on hybrid cloud, artificial intelligence, consulting, mainframe systems, infrastructure, software, research, security, automation, and quantum computing for governments and businesses with complex mission-critical operations.
Hurricanes are powerful tropical cyclones that form over warm ocean water and can bring destructive winds, heavy rain, storm surge, flooding, and coastal damage. Understanding how they form and how warnings work helps communities prepare before landfall.
The Human Genome Project was an international research effort, launched in 1990 and completed in 2003, that produced the first reference sequence of the human genome and helped transform biology, medicine, data sharing, and genomic technology.
The Hubble Space Telescope is a NASA-ESA space observatory launched in 1990 that studies the universe from Earth orbit, producing landmark images and data about galaxies, stars, planets, nebulae, black holes, and the expansion of the cosmos.
Huawei is a Chinese technology company known for telecommunications network equipment, ICT infrastructure, cloud services, smart devices, digital power products, and intelligent automotive components used by carriers, enterprises, and consumers.
HP Inc. is a personal computing and printing company known for laptops, desktops, workstations, printers, ink and toner supplies, gaming PCs, managed print services, and device security for consumers, schools, businesses, and hybrid work.
Housing affordability asks whether people can obtain safe, suitable homes without losing the income they need for food, transport, health care, education, and savings.
Horses are large one-toed mammals whose speed, strength, social behavior, and domestication reshaped transport, farming, warfare, sport, and human culture.
The history of warfare studies how societies have organized, justified, fought, limited, remembered, and tried to prevent war. It links weapons and tactics with states, economies, law, culture, civilians, and technology, showing that war is not only a sequence of battles but a changing human institution with deep costs.
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