Hello, and welcome to MPC! MPC is a blog that is intended to spread modern physics knowledge to anyone who is interested. There are no math/science prerequisites for any of the blog posts, although knowing a little bit of high school physics, algebra, and trigonometry may be helpful (but certainly not required). Modern physics should […]Read more "Welcome to MPC!"
Hello, and welcome back to MPC! Last week, we celebrated the 25th blog post by reviewing what we have covered so far and discussing what we will be covering in the coming months. As promised, in this week’s post we will be relating three major concepts that we have been discussing: spacetime diagrams, light cones, […]Read more "Special Relativity XII: Causality in Spacetime Diagrams"
Hello, and welcome back to MPC! Last week, we had an exciting discussion about causality. At the end of that discussion, I said that we would soon be combining the major concepts that we have been discussing since last month: the spacetime interval, light cones, and causality. However, before diving into that, I would like […]Read more "25th Post!"
Hello, and welcome back to MPC! Last week, we related the concept of spacetime intervals to light cones. Today, we will begin discussing the idea of causality. Before we even begin, here is something to ponder: what word does causality sound like? I am sure that, for many of you, the word cause came to […]Read more "Special Relativity XI: Causality"
Hello, and welcome back to MPC! Last week, we continued our discussion of spacetime diagrams and introduced the concept of a light cone. Today, we will be relating our discussion of light cones to a topic we discussed a few weeks ago: the spacetime interval. Let’s start off with a brief review of the spacetime […]Read more "Special Relativity X: Spacetime Interval and Light Cones"
Hello, and welcome back to MPC! Last week, we started discussing spacetime diagrams and how they can be used to represent the motion of objects through spacetime. Today, we will continue to analyze spacetime diagrams. At the end of last week’s post, we spoke about the strange and seemingly useless ct-axis. Recall that we replaced […]Read more "Special Relativity IX: Spacetime Diagrams Part 2"
Hello, and welcome back to MPC! Last week, we talked about the spacetime interval. We still have more to discuss when it comes to the spacetime interval. However, we are going to take a brief break and talk about something new today: spacetime diagrams. In math and physics, we typically look for ways of representing […]Read more "Special Relativity IX: Spacetime Diagrams Part 1"
Hello, and welcome back to MPC! Last week, we discussed the concept of spacetime and the role it plays in our lives. Today, we will be looking at spacetime a little more closely by analyzing a quantity known as the spacetime interval. In last week’s post, we discussed how space and time are relative quantities. […]Read more "Special Relativity VIII: The Spacetime Interval"