What dimensions does he mean?

blackraven

I read this article: http://www.sciencenews.org/view/gene..._well_as_space

What dimensions is the article talking about? Doesn't everything have a fourth dimension, time?

DennisN

Found another one here: Physicists Predict The Existence of Time Crystals. Interesting article. From what I gather it involves time, as well as space. A quote from the article:

"Of course, there will be disputes over some of the issues this raises. One of them is that the motion that breaks time symmetry seems a little puzzling. Wilczek and Shapere acknowledge this: “Speaking broadly speaking, what we're looking for looks perilously close to perpetual motion.”"

If so, I fail to see how they will be able to interact with the crystal without slowing it down. But I might be missing something

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blackraven	What dimensions does he mean? Tweet I read this article: http://www.sciencenews.org/view/gene..._well_as_space What dimensions is the article talking about? Doesn't everything have a fourth dimension, time?