Alternating current (AC) is an electric current in which the direction of flow and the magnitude of the current vary periodically with time. This contrasts with direct current...
An altimeter is an instrument used to measure the altitude of an object relative to a fixed reference level, most commonly mean sea level or ground level. The...
Altitude is a measurement of vertical distance between a reference datum and a point or object. Its exact definition depends on the context, which may include aviation, geometry,...
The Andaman Sea, historically referred to as the Burma Sea, is a marginal basin of the northeastern Indian Ocean. It is bounded to the north and east by...
Anthrax is an acute infectious disease caused primarily by the bacterium Bacillus anthracis, with rare cases attributed to Bacillus cereus biovar anthracis. The organism forms hardy endospores capable...
Anticapitalism encompasses a broad range of political ideas, social movements and philosophical critiques that reject capitalism as an economic and social system. Anticapitalists argue that capitalism—defined by private...
Antihydrogen is the antimatter counterpart of ordinary hydrogen. Whereas a hydrogen atom consists of a proton orbited by an electron, antihydrogen comprises an antiproton and a positron. As...
Antiviral drugs are a class of medications used to treat infections caused by viruses. They form a major subgroup of antimicrobial agents, alongside antibacterials, antifungals and antiparasitics. Most...
An aquifer is a subsurface layer of permeable material—such as sand, gravel, silt, or fractured rock—that contains and transmits groundwater in quantities sufficient for wells, springs or other...
Scientists have recorded worst mass coral bleaching event on Australia’s Great Barrier Reef. It has killed more corals than ever before, sounding the alarm over the delicate ecosystem....
According new data from Civil Registration System ( CRS) released by the Office of the Registrar General of India, Sex Ratio at Birth (SRB) continues to worsen in...
Asia’s first and longest cycle highway was inaugurated in Uttar Pradesh. It is also India’s first cycle highway. The 207-km-long cycle highway runs between Etawah and Agra. It...
