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It is the first vaccine to have been developed against a contagious disease. In 1796, British physician Edward Jenner demonstrated that an infection with the relatively mild cowpox virus conferred immunity against the deadly smallpox virus. Cowpox served as a natural vaccine until the modern smallpox vaccine emerged in the 20th century.
Generation Alpha (often shortened to Gen Alpha) is the demographic cohort succeeding Generation Z. Researchers and popular media use the early 2010s as starting birth years to the mid-2020s as the ending birth years (see § Date and age range definitions). Named after alpha, the first letter in the Greek alphabet, Generation Alpha is the first ...
Part of the Cold War, the Revolutions of 1989 and the Chinese democracy movement. Protesters in Tiananmen Square on 2 June (top), and tanks in Beijing in July (bottom) Date. Initial protests: 15 April – 4 June 1989. (1 month, 2 weeks and 6 days) Massacre: 3–4 June 1989. (1 day); 35 years ago.
In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones.
t. e. The history of artificial intelligence (AI) began in antiquity, with myths, stories and rumors of artificial beings endowed with intelligence or consciousness by master craftsmen. The study of logic and formal reasoning from antiquity to the present led directly to the invention of the programmable digital computer in the 1940s, a machine ...
C is an imperative procedural language, supporting structured programming, lexical variable scope, and recursion, with a static type system. It was designed to be compiled to provide low-level access to memory and language constructs that map efficiently to machine instructions, all with minimal runtime support.
Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic. It is 20 to 40 times more potent than heroin and 100 times more potent than morphine; [9] its primary clinical utility is in pain management for cancer patients and those recovering from painful surgeries. [10][11] Fentanyl is also used as a sedative. [12] .
