ASTRONOMERS

Hi every body!
I'm very glad to write this post about the similarities and the differences between two of the most important scientists in science's history and even in humans history: Galileo Galilei and Isaac Newton. In fact, their innovative laws and predictions have changed our life. But, are we really conscious of what they have done? And do we really know the relationship between them, meaning the differences and similarities between them?

For a start, I'll describe the laws of each scientist. Galileo stated that the experiment was superior to logic in uncovering natural laws. In addition, he showed that moving things, once in motion, stay in motion without the use of forces (called inertia). On the other hand, Newton stated the 3 Laws of Motion:
1- Every body continues in motion in a straight line unless compelled to change by forces impressed upon it. Actually, Galileo first formulated this, but Newton recast it.
2- Every change of motion is proportional to the force impressed and is made in the direction of the straight line in which that force is impressed.

3- For every action there is an equal and opposite reaction.

Moreover, putting these laws together, he stated the Law of Universal Gravitation, which means that the gravitational attraction between two bodies decreases rapidly as the distance between them increases.
This discoveries are considered two of the most important in science and they are completely different.

On the other hand, those scientists have some things in common. Actually, the ideas of both were  very different than the status equo. They also challenged conventional wisdom and stood up for their beliefs. Furthermore, as I said before, Newton supported his laws of Motion on the cinematic theory developed by Galileo, who took ideas from the causality principles developed by Aristotle. So, we can see certain connection between these ideas, this is, the relationship between the most important scientists in the history.

Finally, it's important to say that Galileo's contributions changed but not whole lot. Newton added to his work with his laws of motions. However, Newton's contributions never changed and they never will. To sum up, I think that these scientists have been so important in science and human evolution and we should show our gratitude for their innovative laws and discoveries.