#length contraction

It says to cut the onions into 1/4" slices, but I'd better correct for length contraction.

Length contraction the real explanation

Ask Ethan: How Can I Travel Through Space Without Getting Into Trouble?

“Sometimes (usually Fridays after work) my friend Scotty beams me up to USS Enterprise for a ride around Sun following the orbit of planet Earth. The warp takes about 2 hours, so I guess our speed is very close to light speed, but not quite. During the ride I usually have a couple of beers, so when Scotty beams be back to my front door, my wife has difficulties believing me when I tell her that I was not at the local Pub...”

So, your friend on the USS Enterprise beamed you aboard, took you on a relativistic journey at impulse speeds around the Solar System, and brought you back to your starting point. You find that less time has passed for you than your family who remained on Earth, yet you’ve traveled a much greater distance. How does this all work? How much energy does it take, what’s the science behind it, and how do you get your family to believe you when you tell them what happened to you? Some basic advice: give them times in their reference frame, admit to the drinking you actually do, and if you go someplace unbelievable, take a photo!

8.1 Introduction to Special Relativity Special relativity is a theory developed by Albert Einstein in 1905, which revolutionized our understanding of space and time. This theory was developed to reconcile the principles of classical mechanics with those of electromagnetism, particularly the constant speed of light in a vacuum. Special relativity has important implications for our understanding…

Introduction Minkowski diagrams are a type of spacetime diagram introduced by Hermann Minkowski in the context of special relativity. They provide a geometric interpretation of the Lorentz transformations and offer a visual way to understand the effects of relativity, such as time dilation and length contraction. Basic Structure A Minkowski diagram is a two-dimensional graph where one axis…

Introduction Length contraction is a fundamental concept in the theory of special relativity. It describes the phenomenon that a moving object’s length is measured to be shorter than its rest length, along the direction of motion. Understanding Length Contraction Length contraction is a direct consequence of Einstein’s postulate that the speed of light in a vacuum is constant for all…

Introduction General Relativity is a theory of gravitation that was developed by Albert Einstein between 1907 and 1915. Based on his idea of what he called “The Equivalence Principle,” he proposed that gravity is not a force in the traditional sense, but a curvature in spacetime caused by mass and energy. The Field Equations The foundation of General Relativity is Einstein’s field equations, a…