You might be surprised to find, however, that the first seismometer was invented in China in 132 AD by a Chinese astronomer, mathematician, engineer, and inventor called Zhang Heng. The instrument was said to resemble a wine jar six feet in diameter, with eight dragons positioned face down along the outside of the barrel, marking the primary compass directions. In each dragon’s mouth was a small bronze ball. Beneath the dragons sat eight bronze toads, with their broad mouths gaping to receive the balls. When the instrument sensed an incoming seismic wave, one of the balls would drop and the sound would alert observers to the earthquake, giving a rough indication of the earthquake’s direction of origin. The device is said to have been very accurate and could detect earthquakes from afar, and did not rely on shaking or movement in the location where the instrument was positioned. The first ever earthquake recorded by this seismograph was supposedly somewhere in the east. Days later, a rider from there reported this earthquake. Moreover, it had the most wicked ornaments. They don’t make scientific instruments like they used to! Of course, the insides of the seismometer was filled with a sensing mechanism of some sort, the contents of which have been lost in time. In all likelihood, a simple or inverted pendulum was employed, according to experts.
The correct answer is: "Singapore"
An absolut advantage takes place when a firm or company is able to produce a good or service at a lower cost per unit than any other. It is able to generate a larger number of product units with the same amount of inputs than other producers, and therefore its production process is the most efficient one.
In the example, Singapore is able to produce the largest amount of book units given the same amount of inputs that the other countries. Therefore, its production system is the most efficient and it is the country that holds the absolut advantage.
Hint: Pretend you are a Loyalist
All of the given practices can be effective in minimizing group harms.
Answer: Option E
Explanation:
As mentioned in the options, a collaborative review of the ongoing research by the Institutional Review Board can be taken from time to time during the course of the research to check whether the group of human samples is facing any adverse effects of the research or not.
A chalked plan promising the disclosure of the results of the research can also help in decreasing group harm. Moreover, consultation among the parties participated in research can also reduce the risk of group harm.
The available options are:
A. China took this action to control all trade along the Silk Road.
B. China took this action to encourage its citizens to fight again Mongol invaders.
C. China took this action at the demand of Confucian scholars who tired of barbarian contact.
D. China took this action to eliminate the migration of Chinese people to other parts of the world.
Answer:
China took this action at the demand of Confucian scholars who tired of barbarian contact
Explanation:
What demonstrates that china stopped trading with other areas of the world and became isolated due to fear of cultural change is that "China took this action at the demand of Confucian scholars who tired of barbarian contact".
During this period, the Chinese Scholars felt that the people of their outside regions were uncultured and barbaric hence they must stay away from them so they won't affect their unique way of life.
