Guitars are awesome, but sometimes transporting a large guitar case can be inconvenient. Cornell University has a solution : really, really tiny guitars made using nanotechnology. As part of a nanotechnology project, Cornell applied physics grad student Lidija Sekaric crafted two guitars, one the size of a red blood cell and one five times larger . The guitars can be played using a focused laser and emit sound at a frequency 17,000 times higher than a real guitar. Although the guitars are currently inaudible to human ears, they offer an exciting glimpse into a future where all instruments are played using lasers. Check out more info here..