Fundamentals of Physics, II (PHYS 201) Ray diagrams are used to investigate the behavior of light incident on mirrors and lenses. The principle of least time is used to show that all rays from an object in front of a concave mirror focus on the image point if they are not too far from the axis. The experiments describing the breakdown of geometric optics are discussed. 00:00 - Chapter 1. Parabolic and Spherical Mirrors 34:16 - Chapter 2....more
The second half of the course begins, focusing on black holes and relativity. In introducing black holes, Professor Bailyn offers a definition, talks about how their existence is detected, and explains why (unlike in the case with exoplanets where Newtonian physics was applied) Einstein's Theory of Relativity is now required when studying black holes. The concepts of escape and circular velocity are introduced. A number of problems are wor...more
Administrative Details, Exams - Time limit, Conflicts, Course Grade Breakdown, Assignment Details - Submission, Grading, Late Days, Course Email, Newsgroup, Facebook/Twitter, Mailing List, Course Prerequisites, Languages and Paradigms Taught - C++ vs. Pure C, Procedural Paradigm vs. Object-Oriented Paradigm, Assembly, Concurrent Programming Overview, Example of Data Sharing Issues with Concurrent Programming, Scheme, Functional Paradigm Ov...more
Static equilibrium is covered in this lecture, achieved only when the net external force AND net external torque on an object are both zero. A ladder leaning against the wall is analyzed to determine the minimum angle it can make with the floor without sliding. Professor Lewin continues with the topic by discussing how to locate the center of mass of a rigid body. The center of mass always lines up below the point of suspenson such that t...more
After a brief introduction to Plato's Phaedo, more arguments are offered in this lecture in defense of the existence of an immaterial soul. The emphasis here is on the fact that we need to believe in the existence of a soul in order to explain the claim that we possess free will. This is an argument dualists use as an objection to the physicalists: since no merely physical entity could have free will, there must be more to us than just bei...more
The Apostle Paul's description of the Jewish Law in his letter to the Galatians demotes from being an expression of Jewish faith to an object of idolatry and one that imprisons those who follow it. Paul is careful to nuance this position, however, in his letter to the Romans. In Romans, it seems that Paul is defending himself against charges of being antinomian. Perhaps Paul treads carefully in order to ensure that his deliverance of a don...more
This lecture discusses the ongoing political experimentation involved in creating new constitutions for the new American states. Having declared independence from Great Britain, Americans had to determine what kind of government best suited their individual states as well as the nation at large; to many, this was the "whole object" of their revolutionary turmoil. Different people had different ideas about what kind of republican government...more
This lecture introduces Newton's Laws of Motion. The First Law on inertia states that every object will remain in a state of rest or uniform motion in a straight line unless acted upon by an external force. The Second Law (F = ma) relates the cause (the force F) to the acceleration. Several different forces are discussed in the context of this law. The lecture ends with the Third Law which states that action and reaction are equal and opposite.
Extreme programming, unit tests, test as you go, unit tests in C, one objective at a time, refactoring. asserts. multi-file programs in C. linking. #include header files prototypes. main. static helper functions. object files .o files Also: hornblower patriotism / the French
The History of Computing, Computer Science vs Programming, What Does the Computer Understand?, The Compilation Process, Java is an Object Oriented Language, Inheritance, Instance of a Class, The acm.program Hierarchy, Your First Java Program, A ConsoleProgram Example, The Graphics Window, The Sending-Messages-to-a-GLabel Example
Foundations of Modern Social Thought (SOCY 151)Today we cover the transition from the young Marx, with his emphasis on change and action, to the mature Marx who turns toward positivist science and determinism, arguing that capitalism will have to fail. Through a closer look at Marx's ''Theses on Feuerbach,'' we discuss different theories of truth with attention to the questions of where truth resides (in the subject, in the object, or some...more
This lecture is about vectors and how to add, subtract, decompose and multiply vectors. Decomposing vectors in two (or three) dimensions is a key concept that will be used throughout the course. Professor Lewin throws an object up, and decomposes its initial velocity into a horizontal and a vertical direction.