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 answer is "intimacy vs. isolation".
Intimacy versus isolation refers to the 6th phase of Erik Erikson's hypothesis of psychosocial advancement. This stage happens amid youthful adulthood between the periods of roughly 19 and 40. Amid this period, the significant clash focuses on shaping private, cherishing associations with other individuals.
Answer:
Volume
Explanation:
The volume of speech varies from one speaker to another and answers why some talk softly while some speak loudly. It is the volume of speech that determines the loudness of sound. In an oral presentation the first prerequisite for a speaker is to consider if the sound can be heard by each one of the audiences. Microphones may cause volume problems either by producing distracting echo effect or by making speech volume too low. As per the question, Derek needs to work on his volume of speech.
It pollutes the air and can get people killed by cave in's.
<span>They didn't speak the language. There were cultural differences. They were discriminated against by the native born Americans. Hard to find a job and a place to live.</span>
