While playing Portal 2 I became interested in learning more about science, and started to do a little independant study - my first project was the Potato battery, which did indeed produce about 1.1 volts 
I uploaded most of my projects to YouTube and created a playlist.
I hope you guys find some of these vids intresting:
http://www.youtube.com/playlist?p=PL7DECCF3AA4A6E9DA
I uploaded most of my projects to YouTube and created a playlist.
I hope you guys find some of these vids intresting:
http://www.youtube.com/playlist?p=PL7DECCF3AA4A6E9DA