However, in June this year, the Black Death swept across Britain, and Cambridge University was forced to suspend classes. Newton had no choice but to return to his hometown in the countryside of Woolstow. He used this time to avoid the plague at home and seriously thought about many problems in natural science. His most important discovery was also made during this period.
Newton lived in the middle of17th century, which was an era of great scientists. The invention of the telescope completely changed the whole astronomical research. British philosopher Francis? Bacon and French philosopher Descartes actively advocated that scientists should rely on their own experiments and observations. Newton has been thinking about the scientific proposition he cares about.