Helix 

Just saw your entry on the Euler's formula talk and on helix, there is a detail missing. A spiral needs the three dimensions and when you say the complex exponential its understood to be stuck in just two, making circles. If we say R^2 = C (the complex plane) then the spiral is (e^(it),t)=(cos(t)+i(sin(t),t)=(cos(t),sin(t),t). So your observation in the Helix needs more details, and I am not sure how this should be explained. Consider moving the issue to the talk page so that what is on the page is more reliable.