One of the most obvious and indisputable observations we can make about the world around us is that space has three dimensions. All objects have depth, breadth, and height. What other direction could they have? In fact with our three dimensional minds we can't even picture what another spatial dimension would look like. Nonetheless, many modern theories of physics such as string theory suggest that there may be more dimensions that we can not perceive. In this talk I will describe what it would mean for there to be extra dimensions that we can't see, suggest some ways to picture what they would be like, and describe how we might be able to detect them.
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