This class is an introduction to the theory of Special Relativity. We will start with the counterintuitive concepts of time dilation and length contraction. We’ll go on to derive the theory from basic postulates of the constant speed of light c and the principle of relativity, and develop some intuition by doing some calculations and resolving the twin paradox and other classic 'paradoxes' in special relativity. To get a more complete understanding, we will develop a bit of mathematical machinery and see how special relativity relates to classical physics. Finally, we'll see what physical effects special relativity has, use it to do a bit of particle physics, and learn to appreciate this strange but beautiful theory of physics.