What is a Tesseract? And Other Scientific Stuff

This children's book explains the features of a tesseract, wheels within wheels, and a sphere within a sphere all within the context of dimensions.  Explore the 0th-4th dimensions with their unique points of view. Imagine what it would be like to exist in each dimension. What can you do?  Where can you go?  What shapes can exist?  Ultimately, answering these questions can lead to a discovery of sc...