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A gallstone is a stone formed within the gallbladder from precipitated bile components. [2] The term cholelithiasis may refer to the presence of gallstones or to any disease caused by gallstones, [5] and choledocholithiasis refers to the presence of migrated gallstones within bile ducts. Most people with gallstones (about 80%) are asymptomatic ...
t. e. In physical cosmology, the Alpher–Bethe–Gamow paper, or αβγ paper, was created by Ralph Alpher, then a physics PhD student, his advisor George Gamow, and Hans Bethe. The work, which would become the subject of Alpher's PhD dissertation, argued that the Big Bang would create hydrogen, helium and heavier elements in the correct ...
The Boys rifle was used in the early stages of the Second World War against lightly armoured German tanks and combat vehicles. Britain also supplied a large number of Boys anti-tank rifles to Finland in 1939 and 1940 during the Winter War with the Soviet Union. The weapon was popular with the Finns because it could deal with Soviet T-26 tanks ...
Leonard Leakey Hofstadter, [2][3] Ph.D., is a fictional character portrayed by Johnny Galecki and one of the main protagonists in the CBS sitcom, The Big Bang Theory. Leonard is an experimental physicist who shares an apartment with his colleague and best friend, Dr. Sheldon Cooper. For his portrayal, Galecki was nominated for a Primetime Emmy ...
Physical cosmology. Ralph Asher Alpher (February 3, 1921 – August 12, 2007) was an American cosmologist, who carried out pioneering work in the early 1950s on the Big Bang model, including Big Bang nucleosynthesis and predictions of the cosmic microwave background radiation.
Johnny Galecki. John Mark Galecki (born April 30, 1975) [1] is an American actor. The accolades he has received include a Satellite Award, alongside nominations for a Primetime Emmy Award, Golden Globe Award, and six Screen Actors Guild Awards. He played Leonard Hofstadter in the CBS sitcom The Big Bang Theory (2007–2019), and David Healy in ...
The gauge (in American English or more commonly referred to as bore in British English) of a firearm is a unit of measurement used to express the inner diameter (bore diameter) of the barrel. Gauge is determined from the weight of a solid sphere of lead that will fit the bore of the firearm and is expressed as the multiplicative inverse of the ...
The modern martial art of Hwa Rang Do was founded by two Korean brothers, Joo Bang Lee and Joo Sang Lee, who started their martial art training with their father who taught them Judo and Kumdo at a young age. In 1942, their father worked out a deal with a monk who was locally known as Suahm Dosa to educate his sons in traditional Korean ...