4th Dimension

The fourth dimension extends our usual three-dimensional space (length, width, height) by adding time as a meaningful coordinate. In this context, objects are described not only by where they are in space but also when they are there. This concept is fundamental in physics, especially in Einstein’s theory of relativity, which shows that space and time are interconnected. Viewing the universe in four dimensions helps us understand how objects move and interact across both space and time, giving a more complete picture of reality beyond our everyday three-dimensional experience.