1. How to derive Cardano's formula for the cubic. A detailed paper can be downloaded here: All you wanted to know about solving cubics but were afraid to ask

A Youtube video presentation can be accessed here: http://youtu.be/bW9FZIO2FZY

Or download here

2. Ever wondered how the residents of Easter Island managed to get those huge stone heads in place? Well, that’s a bit like wondering how they solved quartic equations in the 16th century without computers. To understand how it was done have a look at the following paper which builds upon my paper on how to solve cubic equations (which you should read first or watch the video): Solving a quartic by the method of radicals.pdf

A Youtube video presentation can be accessed here: http://youtu.be/bW9FZIO2FZY

Or download here

2. Ever wondered how the residents of Easter Island managed to get those huge stone heads in place? Well, that’s a bit like wondering how they solved quartic equations in the 16th century without computers. To understand how it was done have a look at the following paper which builds upon my paper on how to solve cubic equations (which you should read first or watch the video): Solving a quartic by the method of radicals.pdf