How did the study of science change during the Renaissance?

The study of Science changed durign the Renaissance because the humanist spirit took hold and people started carefully started observing the world around them. List four science or mathematics topics Leonardo explored in his notebooks.

The used coins.. .

The haitian revolution was the result of a long struggle on the part of the slaves in the french colony of st. domingue, but was also propelled by the free mulattoes who had long faced the trials of being denoted as semi-citizens. this revolt was not unique, as there were several rebellions of its kind against the institution of plantation slavery in the caribbean, but the haitian revolution the most successful. this had a great deal to do with the influence of the french revolution, as it to inspire events in haiti. the haitian revolution would go on to serve as a model for those affected by slavery throughout the world.