QUES: The slide rule was invented around 1620–1630, shortly after the publication of the concept of the logarithm. It is a hand-operated analog computer for doing multiplication and division. As slide rule development progressed, added scales provided reciprocals, squares and square roots, cubes and cube roots, as well as transcendental functions such as logarithms and exponentials, circular and hyperbolic trigonometry and other functions. Aviation is one of the few fields where slide rules are still in widespread use, particularly for solving time–distance problems in light aircraft. To save space and for ease of reading, these are typically circular devices rather than the classic linear slide rule shape. A popular example is the E6B.
When was the slide rule first invented?

ANS: 1620–1630

QUES: Watch Tower Society publications have claimed that God has used Jehovah's Witnesses (and formerly, the International Bible Students) to declare his will and has provided advance knowledge about Armageddon and the establishment of God's kingdom. Some publications also claimed that God has used Jehovah's Witnesses and the International Bible Students as a modern-day prophet.[note 5] Jehovah's Witnesses' publications have made various predictions about world events they believe were prophesied in the Bible. Failed predictions have led to the alteration or abandonment of some doctrines. Some failed predictions had been presented as "beyond doubt" or "approved by God".
What has God provided to Jehovah's Witnesses?

ANS: advance knowledge about Armageddon

QUES: A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power influence, which may cause middle or small powers to consider the great powers' opinions before taking actions of their own. International relations theorists have posited that great power status can be characterized into power capabilities, spatial aspects, and status dimensions. Sometimes the status of great powers is formally recognized in conferences such as the Congress of Vienna or an international structure such as the United Nations Security Council (China, France, Russia, the United Kingdom and the United States serve as the body's five permanent members). At the same time the status of great powers can be informally recognized in a forum such as the G7 which consists of Canada, France, Germany, Italy, Japan, the United Kingdom and the United States of America.
What 3 factors have international relations theorists considered factors for great power status?

ANS: power capabilities, spatial aspects, and status dimensions

QUES: A significant and far-reaching shift in human subsistence and lifestyle was to be brought about in areas where crop farming and cultivation were first developed: the previous reliance on an essentially nomadic hunter-gatherer subsistence technique or pastoral transhumance was at first supplemented, and then increasingly replaced by, a reliance upon the foods produced from cultivated lands. These developments are also believed to have greatly encouraged the growth of settlements, since it may be supposed that the increased need to spend more time and labor in tending crop fields required more localized dwellings. This trend would continue into the Bronze Age, eventually giving rise to permanently settled farming towns, and later cities and states whose larger populations could be sustained by the increased productivity from cultivated lands.
What was brought about by crop rotating?

ANS:
unanswerable