Which of the following is not true about Galileo?
He was such a brilliant mathematician that he became a professor of mathematics at the age of 25.
He developed a new and improved thermometer and a better compass.
He designed a telescope 10 times more powerful than earlier models.
He was able to prove that Ptolemy's theory that the moon had a smooth, polished surface was true.
At the Inquisition he signed a paper taking back his radical ideas about the Earth revolving around the sun.
"At the Inquisition he signed a paper taking back his radical ideas about the Earth revolving around the sun" is not true about Galileo. The correct option among all the options that are given in the question is the last option or option "E". I hope that the answer has come to your help.