Question: How many dimensions are there and what are they?

  1. Hey jlim48 great one again! The dimensions are right under your nose! Length, width, height, and time!

    They are the ones we can prove and measure… but there are types of physics that argue that there can be up to or more than 10 dimensions! Super complicated! Get your head around this one! https://www.youtube.com/watch?v=ehVpYqTuJLw

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  2. Ahoy ahoy! Dimensions do my head it! I did a research project 4 years ago that looked at 27 dimensions in a bacterial community! Very cool and very complicated!!! :S
    Anything we think of as being able to have a range of values can be
    imagined as a dimension (mathematicians do this all the time), but if
    you mean physical dimensions, then the ones that are concrete are, as
    Sam says, length, width, breadth and time.
    String theory says there are more dimensions, but these are curled up into little circles/loops that are smaller than we can see with our best microscopes. If they exist, we have to test for them indirectly, but at the moment physicists and cosmologists are still working on it very hard, and another theory might even be true and the first four are the only dimensions there are!

    Here’s a page that explains a bit about how to imagine the extra
    dimensions in string theory:
    https://www.dummies.com/how-to/content/the-basic-elements-of-string-theory.html

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