Rene Descartes ( 1596 - 1650 ) was very important scientist. He invented the Cartesian coordinate system. He considered mathematics like the basis to all sciences. Descartes partially agreed with Copernicus` theory about the Heliocentric system. He had his theory - "theory of the vertex". because he was scared of the Catholic church, he didn`t totally agree with the Heliocentric system. He also had his "Method of doubt": Can`t be doubted = certainty = truth.
Answer: b. He proposed that through the use of reason and doubt individuals may arrive at understanding.
After world war two our knowledge of what we could do with science changed because we then knew formulas and ways to make nuclear weapons
The main economic system that was used to reshape China’s economy after the civil war was "<span>C. communism," although it should be noted that there were strong elements of socialism as well. </span>
