How would you find a new planet at the outskirts of our solar system that is too dim to be seen with the unaided eye and is so far away that it moves very slowly among the stars? This was the problem confronting astronomers during the nineteenth century as they tried to pin down a full inventory of our solar system.
If we could look down on the solar system from somewhere out in space, interpreting planetary motions would be much simpler. But the fact is, we must observe the positions of all the other planets from our own moving planet. Scientists of the Renaissance did not know the details of Earth’s motions any better than the motions of the other planets. Their problem, as we saw in Observing the Sky: The Birth of Astronomy, was that they had to deduce the nature of all planetary motion using only their earthbound observations of the other planets’ positions in the sky. To solve this complex problem more fully, better observations and better models of the planetary system were needed.
Hormonal Contraception, risks and Side Effects- My Personal Testimony
Ferely Correa born in Venezuela, married and mother of 5, met her husband when they were studying engineering. They now share the same profession as chemical engineers. Previously, Ferely was working as a chemical analyst in Venezuela and Mexico in the oil and gas industry, then moved to Holland, and there, volunteered as a team coordinator of activities related to the expat areas in the Hague, at ACCESS magazine. Currently, she is blessed to be part of the NFP instructors in USA, teaching the Billings Ovulation Method. Teaching has taken her on a rewarding and beautiful journey learning more about her body, how it works and what could potentially damage it.