I was thinking that such an incredubly thin and strong filament would make an ideal ultra-sharp cutting edge for a Vibroblade type of weapon utilizing ultrasonic vibration to multiply the cutting effectiveness even more..
http://starwars.wikia.com/wiki...
Now, if one were to have a handle from which sprang an end-disc by a telescoping rod, and attached to the circumference of that disc, and extending back down to the handle, were these insanely-sharp nano-threads, heated possibly by electricity akin to an everyday electrical heating element, or by the energy of the ultrasound energy itself such that it appeared like a column of glowing light growing out from the handle, you'd have a good approximation of a Light Saber.
Heck, the slight differences in the precise frequency each thread would be vibrating at would likely cause relatively-low frequency harmonic notes equal to the difference in frequency between each thread. You would have the humming and slight frequency & phase shifts produced by light sabers being swung around.
Wish I had the resources to throw at the problem. Heck, even if it didn't turn out to be exactly a "light saber", an ultrasonic nano-thread sword that could slice through heavy armor like butter would be awesome, not to mention all the practical industrial and medical potential such a tool would posses.
Strat