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 discussed how massive objects can completely warp space itself. As promised at the end of last week’s post, today we will focus on how massive objects affect time. Before we get started, I highly recommend that you check out the two posts on time dilation in […]Read more "General Relativity V: Time Dilation in General Relativity"
Hello, and welcome back to MPC! Last week, we discussed why the bending of light is so strange. Today, we will talk about discoveries (made by Einstein) that make this phenomenon a little more believable. Get ready — things are about to get weird! We have already discussed the formula that Sir Isaac Newton developed […]Read more "General Relativity IV: The True Nature of Gravity Part 2"
Hello, and welcome back to MPC! Last week, we discussed an interesting implication of general relativity: the bending of light. Today, we will analyze this phenomenon in much greater detail to see if we can learn anything from it. Before we begin, we have to ensure that we are all on the same page when […]Read more "General Relativity IV: The True Nature of Gravity Part 1"
Hello, and welcome back to MPC! Last week, we spoke about a very important relationship: Einstein’s equivalence principle. Today, we are going to discuss a major implication of the equivalence principle. Quick disclaimer! Recall that, a few weeks ago, I mentioned general relativity is significantly more complicated than special relativity and that we would, therefore, […]Read more "General Relativity III: The Bending of Light"
Hello, and welcome back to MPC! Last week, we discovered the mistake we had made when we originally analyzed the twin paradox. Specifically, we realized that Albert (the twin in the rocket ship) was accelerating during his journey and, therefore, we could not just use special relativity to analyze the situation. At the end of […]Read more "General Relativity II: The Equivalence Principle"
Hello, and welcome back to MPC! Last week, we began discussing the strangeness of the twin paradox. Today, we will continue this discussion and hopefully come up with a logical explanation for the paradox. As a quick refresher from last week, we have 20-year-old twin brothers, Albert and Richard. Albert goes on a rocket ship, […]Read more "General Relativity I: The Twin Paradox Part 2"
Hello, and welcome back to MPC! Last week, we spoke about why special relativity is so “special.” We also briefly discussed general relativity. Today, we will talk about a famous scenario that illustrates why general relativity is so important. Let’s imagine a simple scenario. Say we have twin brothers, Albert and Richard: Figure 1: Richard […]Read more "General Relativity I: The Twin Paradox Part 1"