The switch I created lights up a blue LED when two pages of a book meet or the book is closed. The paper within the book is not conductive within itself so I taped one wire to a single page and fashioned an alligator clip to another end. Ideally, I would have used two alligator clips but in this demonstration I used what was available. The battery supply is a 9V batter connected to a power supply module. I only had a 220Ohm resistor on hand so the resistance is questionable. As mentioned in the video I can see possible implications of the switch being used for sick bookmarks and potentially study reminders. Video is embedded but I can upload to Youtube as well if that doesn't work.
