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Q18
how a rocket engine works
Rocket engine
RS-68 being tested at NASA's Stennis Space Center.
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Q18
how a rocket engine works
Rocket engine
The nearly transparent exhaust is due to this engine's exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen)
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Q18
how a rocket engine works
Rocket engine
Viking 5C rocket engine
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Q18
how a rocket engine works
Rocket engine
A rocket engine, or simply "rocket", is a jet engine that uses only stored propellant mass for forming its high speed propulsive jet .
11
Q18
how a rocket engine works
Rocket engine
Rocket engines are reaction engines and obtain thrust in accordance with Newton's third law .
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Q18
how a rocket engine works
Rocket engine
Since they need no external material to form their jet, rocket engines can be used for spacecraft propulsion as well as terrestrial uses, such as missiles .
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Q18
how a rocket engine works
Rocket engine
Most rocket engines are internal combustion engines , although non-combusting forms also exist.
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Q18
how a rocket engine works
Rocket engine
Rocket engines as a group have the highest exhaust velocities, are by far the lightest, but are the least propellant efficient of all types of jet engines.
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Q21
how are cholera and typhus transmitted and prevented
Cholera
Cholera is an infection in the small intestine caused by the bacterium Vibrio cholerae .
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Q21
how are cholera and typhus transmitted and prevented
Cholera
The main symptoms are watery diarrhea and vomiting .
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Q21
how are cholera and typhus transmitted and prevented
Cholera
Transmission occurs primarily by drinking water or eating food that has been contaminated by the feces (waste product) of an infected person, including one with no apparent symptoms.
11
Q21
how are cholera and typhus transmitted and prevented
Cholera
The severity of the diarrhea and vomiting can lead to rapid dehydration and electrolyte imbalance, and death in some cases.
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Q21
how are cholera and typhus transmitted and prevented
Cholera
The primary treatment is oral rehydration therapy , typically with oral rehydration solution , to replace water and electrolytes.
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Q21
how are cholera and typhus transmitted and prevented
Cholera
If this is not tolerated or does not provide improvement fast enough, intravenous fluids can also be used.
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Q21
how are cholera and typhus transmitted and prevented
Cholera
Antibacterial drugs are beneficial in those with severe disease to shorten its duration and severity.
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Q21
how are cholera and typhus transmitted and prevented
Cholera
Worldwide, it affects 3–5 million people and causes 100,000–130,000 deaths a year .
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Q21
how are cholera and typhus transmitted and prevented
Cholera
Cholera was one of the earliest infections to be studied by epidemiological methods.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
The Picture of Dorian Gray is the only published novel by Oscar Wilde , appearing as the lead story in Lippincott's Monthly Magazine on 20 June 1890, printed as the July 1890 issue of this magazine.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
The magazine's editors feared the story was indecent as submitted, so they censored roughly 500 words, without Wilde's knowledge, before publication.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
But even with that, the story was still greeted with outrage by British reviewers, some of whom suggested that Wilde should be prosecuted on moral grounds, leading Wilde to defend the novel aggressively in letters to the British press.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Wilde later revised the story for book publication, making substantial alterations, deleting controversial passages, adding new chapters and including an aphoristic Preface which has since become famous in its own right.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
The amended version was published by Ward, Lock and Company in April 1891.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Some scholars believe that Wilde would today have wanted us to read the version he originally submitted to Lippincott's.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
The novel tells of a young man named Dorian Gray, the subject of a painting by artist Basil Hallward.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Basil is impressed by Dorian's beauty and becomes infatuated with him, believing his beauty is responsible for a new mode in his art.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Dorian meets Lord Henry Wotton, a friend of Basil's, and becomes enthralled by Lord Henry's world view.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Espousing a new hedonism , Lord Henry suggests the only things worth pursuing in life are beauty and fulfilment of the senses.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Realizing that one day his beauty will fade, Dorian (whimsically) expresses a desire to sell his soul to ensure the portrait Basil has painted would age rather than he.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
Dorian's wish is fulfilled, and when he subsequently pursues a life of debauchery, the portrait serves as a reminder of the effect each act has upon his soul , with each sin displayed as a disfigurement of his form, or through a sign of aging.
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Q22
how old is sybil vane in the picture of dorian gray
The Picture of Dorian Gray
The Picture of Dorian Gray is considered a work of classic Gothic fiction with a strong Faustian theme .
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
Sári Gábor (born 6 February 1917), known as Zsa Zsa Gabor (), is a Hungarian -born American actress who acted in supporting roles in movies, on Broadway , and occasionally on television .
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
Gabor was also a socialite .
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
She began her stage career in Vienna at age 15, and was crowned Miss Hungary in 1936.
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
She emigrated to the United States in 1941 and became a sought-after actress with "European flair and style", with a personality that "exuded charm and grace".
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
Her first movie role was as supporting actress in Lovely to Look At .
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
She later acted in We're Not Married!
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
and played one of her few leading roles in Moulin Rouge (1952), directed by John Huston , who described her as a "creditable" actress.
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
Besides her film and television appearances, she is best known for having nine husbands, including hotel magnate Conrad Hilton and actor George Sanders .
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
She once stated, "Men have always liked me and I have always liked men.
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Q23
how old is zsa zsa gabor's daughter
Zsa Zsa Gabor
But I like a mannish man, a man who knows how to talk to and treat a woman – not just a man with muscles."
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Q24
how bruce lee died
Bruce Lee
Bruce Lee (traditional :李小龍; born Lee Jun-fan; 27 November 1940 – 20 July 1973) was a Chinese American martial artist , actor, martial arts instructor, philosopher, and filmmaker.
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Q24
how bruce lee died
Bruce Lee
The founder of Jeet Kune Do , Lee was the son of Cantonese opera star Lee Hoi-Chuen .
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Q24
how bruce lee died
Bruce Lee
He is widely considered by commentators, critics, media and other martial artists to be one of the most influential martial artists of all time, and a pop culture icon of the 20th century.
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Q24
how bruce lee died
Bruce Lee
He is often credited with helping to change the way Asians were presented in American films.
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Q24
how bruce lee died
Bruce Lee
Lee was born in Chinatown, San Francisco on 27 November 1940 to parents from Hong Kong and was raised in Kowloon with his family until his late teens.
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Q24
how bruce lee died
Bruce Lee
He was introduced to the film industry by his father and appeared in several films as a child actor.
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Q24
how bruce lee died
Bruce Lee
Lee moved to the United States at the age of 18 to receive his higher education, and it was during this time that he began teaching martial arts.
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Q24
how bruce lee died
Bruce Lee
His Hong Kong and Hollywood -produced films elevated the traditional Hong Kong martial arts film to a new level of popularity and acclaim, sparking a surge of interest in Chinese martial arts in the West in the 1970s.
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Q24
how bruce lee died
Bruce Lee
The direction and tone of his films changed and influenced martial arts and martial arts films in Hong Kong and the rest of the world.
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Q24
how bruce lee died
Bruce Lee
He is noted for his roles in five feature-length films: Lo Wei 's The Big Boss (1971) and Fist of Fury (1972); Way of the Dragon (1972), directed and written by Lee; Warner Brothers ' Enter the Dragon (1973) and The Game of Death (1978), both directed by Robert Clouse .
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Q24
how bruce lee died
Bruce Lee
Lee became an iconic figure known throughout the world, particularly among the Chinese , as he portrayed Chinese nationalism in his films.
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Q24
how bruce lee died
Bruce Lee
He initially trained in Wing Chun , but later rejected well-defined martial art styles, favouring instead the use of techniques from various sources, in the spirit of his personal martial arts philosophy, which he dubbed Jeet Kune Do (The Way of the Intercepting Fist).
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Q24
how bruce lee died
Bruce Lee
Lee held dual citizenship of Hong Kong and the United States.
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Q24
how bruce lee died
Bruce Lee
He died in Kowloon Tong on 20 July 1973 at age 32.
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
Chronic obstructive pulmonary disease (COPD), also known as chronic obstructive lung disease (COLD), chronic obstructive airway disease (COAD), chronic airflow limitation (CAL) and chronic obstructive respiratory disease (CORD), is the occurrence of chronic bronchitis or emphysema , a pair of commonly co-existing diseases of the lungs in which the airways narrow over time.
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
This limits airflow to and from the lungs, causing shortness of breath (dyspnea).
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
In clinical practice, COPD is defined by its characteristically low airflow on lung function tests .
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
In contrast to asthma , this limitation is poorly reversible and usually gets progressively worse over time.
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
COPD is caused by noxious particles or gas, most commonly from tobacco smoking , which triggers an abnormal inflammatory response in the lung.
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
The diagnosis of COPD requires lung function tests .
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
Important management strategies are smoking cessation , vaccinations , rehabilitation , and drug therapy (often using inhalers ).
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
Some patients go on to require long-term oxygen therapy or lung transplantation .
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
Worldwide, COPD ranked as the sixth leading cause of death in 1990.
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
It is projected to become the fourth leading cause of death worldwide by 2030, due to an increase in smoking rates and demographic changes in many countries.
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Q25
how active can one be with copd
Chronic obstructive pulmonary disease
COPD is the third leading cause of death in the U.S., and the economic burden of COPD in the U.S. in 2007 was $42.6 billion in health care costs and lost productivity.
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Q26
how did anne frank die
Anne Frank
Annelies "Anne" Marie Frank (, ?, ; 12 June 1929early March 1945) is one of the most discussed Jewish victims of the Holocaust .
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Q26
how did anne frank die
Anne Frank
Her diary has been the basis for several plays and films.
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Q26
how did anne frank die
Anne Frank
Born in the city of Frankfurt am Main in Weimar Germany , she lived most of her life in or near Amsterdam , in the Netherlands.
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Q26
how did anne frank die
Anne Frank
Born a German national, Frank lost her citizenship in 1941.
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Q26
how did anne frank die
Anne Frank
She gained international fame posthumously after her diary was published.
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Q26
how did anne frank die
Anne Frank
It documents her experiences hiding during the German occupation of the Netherlands in World War II .
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Q26
how did anne frank die
Anne Frank
The Frank family moved from Germany to Amsterdam in 1933, the year the Nazis gained control over Germany.
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Q26
how did anne frank die
Anne Frank
By the beginning of 1940, they were trapped in Amsterdam by the Nazi occupation of the Netherlands.
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Q26
how did anne frank die
Anne Frank
As persecutions of the Jewish population increased in July 1942, the family went into hiding in the hidden rooms of Anne's father, Otto Frank 's, office building.
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Q26
how did anne frank die
Anne Frank
After two years, the group was betrayed and transported to concentration camps .
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Q26
how did anne frank die
Anne Frank
Anne Frank and her sister, Margot , were eventually transferred to the Bergen-Belsen concentration camp , where they died of typhus in March 1945.
11
Q26
how did anne frank die
Anne Frank
Otto Frank, the only survivor of the family, returned to Amsterdam after the war to find that Anne's diary had been saved, and his efforts led to its publication in 1947.
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Q26
how did anne frank die
Anne Frank
It was translated from its original Dutch and first published in English in 1952 as The Diary of a Young Girl .
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Q26
how did anne frank die
Anne Frank
It has since been translated into many languages.
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Q26
how did anne frank die
Anne Frank
The diary, which was given to Anne on her 13th birthday, chronicles her life from 12 June 1942 until 1 August 1944.
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Q27
how old is kurt cobain's daughter
Kurt Cobain
Kurt's signature
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Q27
how old is kurt cobain's daughter
Kurt Cobain
Kurt Donald Cobain (February 20, 1967 – April 5, 1994) was an American musician and artist , best known as the lead singer , guitarist and primary songwriter of the grunge band Nirvana .
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Q27
how old is kurt cobain's daughter
Kurt Cobain
Cobain formed Nirvana with Krist Novoselic in Aberdeen, Washington in 1985 and established it as part of the Seattle music scene, having its debut album Bleach released on the independent record label Sub Pop in 1989.
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Q27
how old is kurt cobain's daughter
Kurt Cobain
After signing with major label DGC Records , the band found breakthrough success with " Smells Like Teen Spirit " from its second album Nevermind (1991).
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Q27
how old is kurt cobain's daughter
Kurt Cobain
Following the success of Nevermind, Nirvana was labeled "the flagship band" of Generation X , and Cobain hailed as "the spokesman of a generation".
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Q27
how old is kurt cobain's daughter
Kurt Cobain
Cobain, however, was often uncomfortable and frustrated, believing his message and artistic vision to have been misinterpreted by the public, with his personal issues often subject to media attention.
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Q27
how old is kurt cobain's daughter
Kurt Cobain
He challenged Nirvana's audience with its final studio album In Utero (1993).
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Q27
how old is kurt cobain's daughter
Kurt Cobain
During the last years of his life, Cobain struggled with heroin addiction , illness and depression.
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Q27
how old is kurt cobain's daughter
Kurt Cobain
He also had difficulty coping with his fame and public image, and the professional and lifelong personal pressures surrounding himself and his wife, musician Courtney Love .
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Q27
how old is kurt cobain's daughter
Kurt Cobain
On April 8, 1994, Cobain was found dead at his home in Seattle , the victim of what was officially ruled a suicide by a self-inflicted shotgun wound to the head.
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Q27
how old is kurt cobain's daughter
Kurt Cobain
The circumstances of his death at age 27 have become a topic of public fascination and debate.
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Q27
how old is kurt cobain's daughter
Kurt Cobain
Since their debut, Nirvana, with Cobain as a songwriter, has sold over 25 million albums in the U.S., and over 50 million worldwide.
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Q28
how are aircraft radial engines built
Radial engine
Radial engine timing and cam mechanism.
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Q28
how are aircraft radial engines built
Radial engine
Click for full resolution animation.
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Q28
how are aircraft radial engines built
Radial engine
Radial engine of a biplane
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Q28
how are aircraft radial engines built
Radial engine
Master rod (upright), slaves and balances from a two-row, fourteen-cylinder Pratt & Whitney Twin Wasp
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Q28
how are aircraft radial engines built
Radial engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes of a wheel.
11
Q28
how are aircraft radial engines built
Radial engine
It resembles a stylized star when viewed from the front, and is called a "star engine" ( German Sternmotor) in some languages.
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Q28
how are aircraft radial engines built
Radial engine
The radial configuration was very commonly used in aircraft engines before turbine engines became predominant.
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Q29
how old were golden girls at time of show
The Golden Girls
The Golden Girls is an American sitcom, created by Susan Harris , that originally aired on NBC from September 13, 1985, to May 9, 1992.
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