GALILEO GALILEI 1564-1642

This great Italian scientist may be more responsible for the development of the scientific method of anyone. Galileo was born in Pisa, in 1564. While young people studying at the University of Pisa, but stalled because of financial affairs. Yet in 1589 he was able to be teaching position at the university. A few years later he joined the University of Padua, and stayed there until 1610. In this period he created a pile of scientific discoveries.
His first important contribution in the field of mechanics. Aristotle taught, the heavier objects fall faster than lighter objects, and generations of intellectuals to swallow a big opinion of the Greek philosophers of this influence. However, Galileo decided to first try to correct the very least, and through a series of experiments he concluded that Aristotle was wrong. The truth is, both heavy and light objects fall at the same rate except to the extent they decelerates due to a shift in the air. (Incidentally, the habit of throwing objects Galileo's experiment from the Tower of Pisa apparently unknowingly).
Knowing this, Galileo took further steps. Carefully he measured the distance of objects fall at the time specified and received evidence that the distance traversed by a falling object is directly balanced by the number of seconds squared falling objects. This discovery (which means the uniform acceleration) has its own significance. Even more importantly Galileo was enabled to collect the results of his findings with mathematical formulas. Extensive use of mathematical formulas and mathematical methods is an important attribute of modern science.
Galileo's other major contribution was his discovery of the law of inertia. Previously, people believe that objects moving by themselves tend to be more slowly and completely stop if there is no power to add strength to keep moving. But Galileo's experiments proved that the assumption was wrong. Whenever the power to slow down, such as shifting, can be eliminated, moving objects tend to keep moving indefinitely. This is an important principle that has been repeatedly asserted by Newton and coupled with the system itself as the first law of motion of one of the vital principle in science.