| The basic idea is to take a piece of plastic wrap (Saran or otherwise) and form it into a "pocket", i.e. bring the four corners together. The pocket is then filled with water.
The corners are then grouped together and twisted until the whole assembly resembles a sphere. This creates a makeshift lens.
It was pretty easy to start a fire using cedar bark tinder.
Using tinder fungus would of course made things even easier.
This first picture shows the basic setup. Notice the upside-down foot in the "lens."
|
