Answer:
Galileo relied completely on what today is understood as the scientific method direct observation and experimentation rather than the Bible or received tradition in his study of astronomy.
Explanation:
Galileo was the towering scientist of his age, much as Einstein was in the twentieth century. If, as we should, we associate the Renaissance with the beginning of the movement from the centrality of faith to the centrality of reason, he is the exemplar of reason for his period.
He developed the telescope, he was able to study the movement of the planets, discovering the four largest moons of Jupiter and determining that Aristotelean cosmology (a received tradition) was in error, causing a huge stir in the scientific community.
Galileo also studied velocity, dropping balls of different weights (again using the scientific method of direct observation) from the top of the leaning tower of Pisa to time how quickly they fell. He demolished Aristotle's contention that objects of different weights.
The correct answer is panicky.
The author himself says that there were a lot of things around him that made him feel nervous, or the exact word he used is - panicky. I don't know the context, however, based on this excerpt it seems that he went through something dangerous or tragic that made him feel panicky about many things around him.
Myanmar, formerly known as Burma until 1989, had been squeezed by international economic sanctions since the late 1990s, with only China as a major political backer and investor.