The Beginner's Guide to 4D That Will Make Sense of The Dimension
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Let's face it, no matter how smart you are you are bound to be confused by 4D. The advanced dimension, that encompasses time, can be so hard to understand for us 3D beings that it even leads some to ask if it actually exists.
Our own Trevor Englis explained 4D as "a place you can travel to by going in a direction perpendicular to the third dimension." But even he acknowledged that "to the untrained eye, this statement makes absolutely no sense."
In this simple and direct video, YouTuber The Science Elf gives us a beginner's guide to the fourth dimension that makes sense! Using a few key examples, including one with the 4D cube the tesseract, the clip's host provides an easy-to-follow progression of explanations that illustrate this extra dimension.
"Math can be weird sometimes, usually when it goes against some of our most common knowledge, yet still can make sense. This is one of those times," says the clip's description.
In the end, the YouTuber reveals that 4D space allows us to devise shapes impossible in 3D as well as other nifty tricks. For instance, a 4D world would also allow us to mirror an entire 3D object. Not bad!
We hope this video clarified this exciting dimension for you. But if you are still confused, you might want to watch this clip on our perception of a 4D sphere.
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