Given the question: Information: - In physics, classical mechanics is one of the two major sub-fields of mechanics, along with quantum mechanics. Classical mechanics is concerned with the set of physical laws describing the motion of bodies under the influence of a system of forces. The study of the motion of bodies is an ancient one, making classical mechanics one of the oldest and largest subjects in science, engineering and technology. It is also known as Newtonian mechanics, though textbook authors often consider Newtonian mechanics as one of the three main formalisms of classical mechanics, along with Lagrangian mechanics and Hamiltonian mechanics. - Calculus (from Latin "calculus", literally "small pebble used for counting") is the mathematical study of continuous change, in the same way that geometry is the study of shape and algebra is the study of generalizations of arithmetic operations. It has two major branches, differential calculus (concerning rates of change and slopes of curves), and integral calculus (concerning accumulation of quantities and the areas under and between curves); these two branches are related to each other by the fundamental theorem of calculus. Both branches make use of the fundamental notions of convergence of infinite sequences and infinite series to a well-defined limit. Generally, modern calculus is considered to have been developed in the 17th century by Isaac Newton and Gottfried Leibniz. Today, calculus has widespread uses in science, engineering and economics. - Sir Isaac Newton (25 December 1642 20 March 1726/27) was an English mathematician, astronomer, and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time and a key figure in the scientific revolution. His book "Philosophi Naturalis Principia Mathematica" ("Mathematical Principles of Natural Philosophy"), first published in 1687, laid the foundations of classical mechanics. Newton also made seminal contributions to optics, and he shares credit with Gottfried Wilhelm Leibniz for developing the infinitesimal calculus. - The scientific revolution is a concept used by historians to describe the emergence of modern science during the early modern period, when developments in mathematics, physics, astronomy, biology (including human anatomy) and transformed the views of society about nature. The scientific revolution took place in Europe towards the end of the Renaissance period and continued through the late 18th century, influencing the intellectual social movement known as the Enlightenment. While its dates are debated, the publication in 1543 of Nicolaus Copernicus's "De revolutionibus orbium coelestium" ("On the Revolutions of the Heavenly Spheres") is often cited as marking the beginning of the scientific revolution. - Gottfried Wilhelm (von) Leibniz (or November 14, 1716) was a German polymath and philosopher who occupies a prominent place in the history of mathematics and the history of philosophy, having developed differential and integral calculus independently of Isaac Newton. Leibniz's notation has been widely used ever since it was published. It was only in the 20th century that his Law of Continuity and Transcendental Law of Homogeneity found mathematical implementation (by means of non-standard analysis). He became one of the most prolific inventors in the field of mechanical calculators. While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, used in the arithmometer, the first mass-produced mechanical calculator. He also refined the binary number system, which is the foundation of virtually all digital computers. - Robert Hooke FRS ( 3 March 1703) was an English natural philosopher, architect and polymath. - Ludgate Hill is a hill in the City of London, near the old Ludgate, a gate to the City that was taken down, with its attached gaol, in 1780. It is the site of St. Paul's Cathedral, traditionally said to have been the site of a Roman temple of the goddess Diana. It is one of the three ancient hills of London, the others being Tower Hill and Cornhill. The highest point is just north of St. Paul's, at above sea level. Ludgate Hill is also the name of a street which runs between St. Paul's Churchyard and Ludgate Circus (built in 1864), from where it becomes Fleet Street. It was formerly a much narrower street called Ludgate Street. - Philosophi Naturalis Principia Mathematica (Latin for "Mathematical Principles of Natural Philosophy"), often referred to as simply the Principia, is a work in three books by Isaac Newton, in Latin, first published 5 July 1687. After annotating and correcting his personal copy of the first edition, Newton also published two further editions, in 1713 and 1726. The "Principia" states Newton's laws of motion, forming the foundation of classical mechanics; Newton's law of universal gravitation; and a derivation of Kepler's laws of planetary motion (which Kepler first obtained empirically). The "Principia" is "justly regarded as one of the most important works in the history of science". - Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties. - The City of London is a city and county within London. It constituted most of London from its settlement by the Romans in the 1st century AD to the Middle Ages, but the agglomeration has since grown far beyond the City's borders. The City is now only a tiny part of the metropolis of London, though it remains a notable part of central London. Administratively, it forms one of the 33 local authority districts of Greater London; however, the City of London is not a London borough, a status reserved for the other 32 districts (including London's only other city, the City of Westminster). - De motu corporum in gyrum ( '' On the motion of bodies in an orbit '' ) is the presumed title of a manuscript by Isaac Newton sent to Edmond Halley in November 1684 . It followed a visit by Halley earlier in that year , when Halley had questioned Newton about problems then exercising the minds of Halley and his scientific circle in London , including Sir Christopher Wren and Robert Hooke . The title of the document is only presumed because the original is now lost . Its contents are inferred from surviving documents , which are two contemporary copies and a draft . Only the draft has the title now used ; both copies are without title . This manuscript ( De Motu for short , but not to be confused with several other Newtonian papers carrying titles that start with these words ) gave important mathematical derivations relating to the three relations now known as '' Kepler 's laws '' ( before Newton 's work , these had not been generally regarded as laws ) . Halley reported the communication from Newton to the Royal Society on 10 December 1684 ( Old Style ) . After further encouragement from Halley , Newton went on to develop and write his book Philosophi Naturalis Principia Mathematica ( commonly known as the Principia ) from a nucleus that can be seen in ' De Motu ' -- of which nearly all of the content also reappears in the Principia . - Sir Christopher Wren PRS ( ) is one of the most highly acclaimed English architects in history. He was accorded responsibility for rebuilding 52 churches in the City of London after the Great Fire in 1666, including what is regarded as his masterpiece, St. Paul's Cathedral, on Ludgate Hill, completed in 1710. After reading the paragraphs above, we are interested in knowing the entity with which 'de motu corporum in gyrum' exhibits the relationship of 'main subject'. Find the answer from the choices below. Choices: - algebra - city - construction - economics - english - geometry - history - london - mathematics - middle ages - philosophy - physics - renaissance - revolution - science - technology
The answer is:
physics