Don’t Panic! This page is the beginning of an unsorted collection of visual explanations of math and physics concepts.
Note: most of the visualizations are not of my own making; the creators are credited.
Here’s an interactive matrix game my dear friend, Nicky, made to learn about transformations: http://ncase.me/matrix/
Visual model theory: forkinganddividing.
Ever confused between homeomorphism and homomorphism? Never fear! The structure preserving map reference is here!
Bezier curves:



The author, LucasVB, has a whole gallery of similar visualisations at his Wikipedia gallery and his tumblr blog.
An interactive way to understand Fourier Analysis. Screenshot example:
Logarithmic spiral and scale:

Taylor Series