The worlds smallest guitar is about the size of a single blood cell or 10 micrometers long! Good God that’s small. Can you imagine the pick that you’d have to use to play this puppy?
I got this piece from the Cornell Science News site and the article is a good read for musicians. I knew that I just had to post this one for all of you tiny guitarists out there … me included.

The world’s smallest guitar is 10 micrometers long — about the size of a single cell — with six strings each about 50 nanometers, or 100 atoms, wide. Made by Cornell University researchers from crystalline silicon, it demonstrates a new technology for a new generation of electromechanical devices
Keep on Jammin’, very carefully though!
At one end of the Truss Rod there is a nut that allows you to adjust it. It can be accessed by either the head of the guitar (normally there is a plastic cover over the opening) or located where the fretboard meets the body of the guitar. The other end is where the rod is anchored or fixed into position. This will give the adjusting end the tension that you will need to move the Truss Rod.