The Fun Theory

In the era when the energy of fossil oil will be less available, alternative sources are sought. The idea is to use the potential energy of the Archimedes spiral spring to run an individual transport means (like bicycle). The transport mean will use exchangeable cassettes containing a wound Archimedes spiral. The spiral will be wound with a winding device, which would enable winding during exercising at home, or while driving downhill, or when breaking, or manual winding etc. The fun part is that we do not rely on fossil energy.
Submitted by Blagoja Milosevski