What did Tycho do that advanced astronomy significantly?
a. He realized that orbits didn’t have to be circles, they could be ellipses.
b. He made more accurate observations than anyone before him.
c. He thought of the idea of circles moving on circles (epicycles) to explain planetary motion.
Answer: b. He made more accurate observations than anyone before him.
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The internal structure of the Earth is investigated mainly by
A) studying seismic waves generated from earthquakes B) deep drilling C) remote sensing satellites D) measuring changes in the Earth's magnetic field
Which of these is considered true about the mass of the neutrino?
a. It is the same as the mass of an electron or positron. b. It is the same as the mass of a nucleon. c. It is the same as the mass of an alpha particle. d. It is zero. e. It is slightly more than zero, but less than an electron.
Saturn has fewer, but stronger winds than Jupiter
a. True b. False Indicate whether the statement is true or false
Why would something like eating raw oysters be potentially harmful?
What will be an ideal response?