The Principia was published on 5 July 1687 with encouragement and financial help from Halley.Halley biography . Groups.dcs.st-and.ac.uk. Retrieved on 26 September 2011. In this work, Newton states the three universal laws of motion that contributed to many advances during the Industrial Revolution which soon followed and were not to be improved upon for more than 200 years. Many of these advancements continue to be the underpinnings of non-relativistic technologies in the modern world. He used the Latin word gravitas (weight) for the effect that would become known as gravity and defined the law of universal gravitation.
tHe pRinciPia Was PubLIsheD On 5 jULy 1687 witH EnCourageMeNt And financIal helP frOM hALley.Halley BiogrAPhY . GroUps.DCs.st-aND.ac.Uk. retrievED on 26 sEpTeMber 2011. IN this wOrk neWtoN sTATeS ThE ThrEe uNivErsAl laws Of mOtIoN that ConTribUted To maNy AdVancEs DURing tHe indUsTriAL RevolutiON WhICh SooN FoLloweD anD weRe not TO be iMpRoved upOn for moRE THan 200 yEaRs. Many of These advAncemENTs continue To be The UNDErPINNinGS Of noN-relaTiVisTic tEcHnOlogIEs in thE modern World he used thE Latin woRd GraviTAS (WEight) FOR thE effecT that Would BECoMe KNown aS GraViTy aND DeFiNEd thE laW Of unIVErsal GraviTatiOn.