It seems unbelievable, however it is true. You can harvest many of what you requirement for a easy solar cell from powdered donuts as well as tea. Powdered donuts have nanoparticles of titanium dioxide which is a “high band space semi conductor”. This implies that it can be utilized to make solar cells. The tea is just utilized to dye the material so it can pick up the visible spectrum. The process is a bit as well included to be something you would just toss together in the field, however it’s adorable nonetheless.