This research paper is a study of Roman engineering and Greek science. This article answers questions about Roman engineering and Greek science. My sources for this article are books on Roman engineering and books on Greek science from the Harper College Library, the Arlington Heights Library, and the Schaumburg Library. These sources are listed on the Works Cited page. Photocopies of the title pages of these books are included as attachments to this article. History has it that ancient Roman engineering and Greek science did a great deal to inform contemporary engineering and science. The Romans excelled in the application of engineering and technology because they used both mathematics and science. The fusion of mathematics and science allowed the Romans to design structures and technologies that are still seen by the world as the watershed of the current crop of structural design and evolution of machinery and technology. On the other hand, contemporary science finds its fundamental foundations in Greek science. The Greeks contributed greatly to the study of science through their critical turn on the existence of nature (Lloyd 120). Greek progress in the study of nature allowed modern scientists to promote the belief that science exists as a relationship between matter and other natural forces and laws and not as a result of the gods, as previously thought. Through their advanced scientific studies, the Greeks discovered the truth that science was in no way controlled or ordered by the subjective whims of the gods. This article aims to compare Greek science and Roman engineering. Roman engineers occupied an enviable position in the fields of engineering and science...... half of article ......n establishing balance and asymmetry in their structural designs and constructions. Although both depended greatly on each other, they influenced the world immensely. Works Cited Allen, H. Star Names, Their Lore and Meaning. New York: DoverPublications.1963.Ashby, T. The Aqueducts of Ancient Rome. Oxford, UK: Clarendon Press, edited by IA Richmond. 1935.Barton, T. Ancient Astrology. London and New York: Routledge. 1994.Blackman, Deane R and Trevor Hodge. The legacy of Frontinus. Michigan: University of Michigan Press. 2001. Feyerabend, P. Against Method: Outline of an Anarchist Theory of Knowledge. London: New Left Books. 1975. Levi, E. The Science of Water. The fundamentals of modern hydraulics. New York, USA: ASCE Press.1995.Lloyd, R. Early Greek Science: From Thales to Aristotle. Norton.O'Connor, C. Roman Bridges. Cambridge, UK: Cambridge University Press. 1993