you and your team know the answer to the question, "what is the mass of the earth?" Your challenge in this Thought Project is to dervise a strategy for finding the mass of the earth using only the equations and equipment that were avalible to scientists in the late seventeenth and early eighteenth centuries. Think about the requirment to solve this problem using only seventeenth- and eighteenth-century tools and methodologies. List and discuss some of the constraints that imposes.