<span style="font-family:Verdana;">T</span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;">his research develops and elaborates
<p align="justify"> <span style="font-family:Verdana;"></span><span style="font-family:Verdana;"></span>In 1686, Newton discovered the laws of gravitation [<a h