A voice assistant is a software program that listens to spoken requests, works out what the user wants and responds by speaking or by carrying out a task such as setting a timer, answering a question or controlling a device. Voice assistants run on smartphones, smart speakers, cars and televisions. They combine speech recognition, language
Software that understands spoken requests and answers by voice or acts on them, such as setting timers, answering questions or controlling devices.
Water purification is the set of physical, chemical and biological processes that remove contaminants such as particles, germs and dissolved chemicals from water so that it is safe for a specific use, most often drinking. It ranges from a large municipal plant serving a city to a filter or chlorine tablet used in a single
The processes that remove particles, germs and dissolved contaminants from water to make it safe for drinking or another use.
Wind power is the use of moving air to produce mechanical power or electricity, most often with turbines whose blades turn a generator. In 2024 wind supplied about 8.1 percent of the world’s electricity, according to the energy think tank Ember, a larger share than solar power at 6.9 percent. History of wind power People
Wind power is electricity or mechanical energy produced from moving air, usually by turbines whose blades spin a generator.
X-ray imaging is a medical and diagnostic technique that sends X-rays, a form of ionizing electromagnetic radiation, through the body and records how much of the beam each tissue absorbs. Dense structures such as bone appear white and softer tissue appears in shades of gray, which makes the method especially useful for finding fractures and
X-ray imaging passes ionizing radiation through the body and records how tissues absorb it, producing images of bones and organs.