The revival of Greek learning was accompanied by the development of scientific attitude. People were no more willing to accept the things blindly and resorted to questioning and reasoning. No wonder, during this period a number of scientists made valuable contributions in the field of science. Leonardo da Vinci, the Italian scientist observed the birds flying and developed various devices which ultimately enabled men to fly in the air like birds.
He also developed a crude type of self- propelled vehicle which resembled a modern car. The Polish scientist Copernicus put forth the theory that sun, not the earth, is the centre of solar system. As his views were contrary to the prevailing views, his views did not receive much attention. However, later on Keplpr, a German astronomer, working on the theory of Copernicus described the paths of the planets in motion around the sun on the basis of mathematical laws.
Galileo, an Italian scientist, devised a crude telescope with which he observed and studied the planets. He also discovered the law of pendulum and by experimenting with the falling bodies formulated one of the fundamental laws of mechanics. Issac Newton, a scientist of England, discovered the famous law of gravitation and asserted that the universe was governed by the mathematical laws.
Fleming Andreas Vesalius made valuable contributions to the field of medicine and made significant contributions to the knowledge of anatomy through careful observation of human body. Harvey, another scientist, experimented on the human body and wrote about blood circulation in the body.