10 résultats pour "backward"
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History of Astronomy - astronomy.
Egypt, the Sun was directly overhead at noon. On the same date and time in Alexandria, Egypt, the Sun was about 7 degrees south of zenith. With simple geometryand knowledge of the distance between the two cities, he estimated the circumference of the Earth to be 250,000 stadia. (The stadium was a unit of length, derivedfrom the length of the racetrack in an ancient Greek stadium. We have an approximate idea of how big an ancient Greek stadium was, and based on that approximationEratosthenes was...
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Peter the Great
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INTRODUCTION
Peter the Great or Peter I (1672-1725), tsar and, later, emperor of Russia (1682-1725), who is linked with the Westernization of Russia and its rise as a great power.
V LATER REIGN Before long, however, these and other reform measures had to cede center stage to the prosecution of the Great Northern War (1700-1721) against Sweden. Peter’sjourney west did not result in a great alliance against the Ottomans, but it led to one against Sweden. Russia fought together with Denmark and the union of Polandand Saxony against Sweden to win the Baltic coastline, the 'window into Europe,' and to break Swedish dominance over the northern part of the continent. At the tim...
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Peter the Great.
V LATER REIGN Before long, however, these and other reform measures had to cede center stage to the prosecution of the Great Northern War (1700-1721) against Sweden. Peter’sjourney west did not result in a great alliance against the Ottomans, but it led to one against Sweden. Russia fought together with Denmark and the union of Polandand Saxony against Sweden to win the Baltic coastline, the 'window into Europe,' and to break Swedish dominance over the northern part of the continent. At the tim...
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It wasn't until the day before we were going to go that the renter asked the obvious question.
I told her, "Ipromise I'mgoing tobe better soon." She said, "There's nothingwrongwithyou." "I'll behappy andnormal." She putherfingers around theback ofmy neck. I told her, "Itried incredibly hard.Idon't know howIcould havetriedharder." She said, "Dad would havebeen veryproud ofyou." "Do youthink so?" "I know so." I cried some more. Iwanted totell her allofthe liesthat I'dtold her. And then Iwanted hertotell me that itwas OK, because sometimes youhave todo something badtodo something good.Andthe...
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A period of political and economic stagnation. How valid is this assessment of the Brezhnev years?
Stalin-like reaction and the stagnation the Soviet Union was in during the Brezhnev era. Brezhnev's only main policy was his constitution of 1977, which replaced Stalin's constitution of 1936. Expanding in over a hundred articles and sub-sections, it roughly followed the same lines of Stalin's constitution but there were significant differences in content. It formally acknowledged the right of the people to cultivate their own private plots and hints at guaranteed freedoms of speech, assembly,...
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Swimming.
the swimmer and the pinky finger should enter the water first. At the same time, the swimmer moves the left arm through the water below the left side of the body.Once in the water, the right arm begins pulling the swimmer forward by bending at the elbow. At the same time the swimmer holds the left arm straight as it reachesthe hip and lifts it out of the water. As the right arm continues to pull, the swimmer rotates slightly onto the right side and swings the left arm up above the head. As the s...
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Rocket.
the vacuum of space, however, demonstrated that this belief was not true. In fact, rockets produce more thrust in the vacuum of space than on Earth. Air pressure andfriction with the air reduce a rocket’s thrust by about 10 percent on Earth as compared to the rocket’s performance in space. B Thrust and Efficiency Thrust is a measurement of the force of a rocket, or the amount of “push” exerted backward to move a rocket forward. Thrusts vary greatly from rocket to rocket.Engineers measure thrust...
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Rocket - astronomy.
the vacuum of space, however, demonstrated that this belief was not true. In fact, rockets produce more thrust in the vacuum of space than on Earth. Air pressure andfriction with the air reduce a rocket’s thrust by about 10 percent on Earth as compared to the rocket’s performance in space. B Thrust and Efficiency Thrust is a measurement of the force of a rocket, or the amount of “push” exerted backward to move a rocket forward. Thrusts vary greatly from rocket to rocket.Engineers measure thrust...
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Communism.
In Britain, Robert Owen, a philanthropic Welsh manufacturer, strove against the social problems brought about by the Industrial Revolution and sought to improve thewelfare of workers. As manager of a cotton mill, he enhanced the environment of his workers by improving their housing, modernizing mill equipment for greater safetyand sanitation, and establishing low-priced stores for the workers and schools for their children. Owen believed that workers, rather than governments, should createthe in...
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Communism .
In Britain, Robert Owen, a philanthropic Welsh manufacturer, strove against the social problems brought about by the Industrial Revolution and sought to improve thewelfare of workers. As manager of a cotton mill, he enhanced the environment of his workers by improving their housing, modernizing mill equipment for greater safetyand sanitation, and establishing low-priced stores for the workers and schools for their children. Owen believed that workers, rather than governments, should createthe in...