Carbon nanotube yarn generates electricity when stretched

[Swordsmyth]

Wearable makers have long sought to harvest electricity from your movement, but current tech is expensive and inefficient. However, researchers from Texas and South Korea have discovered a promising method using our good old friend, the carbon nanotube. The team twisted the lightweight tubes into tight, elastic-like coils, so that they rotate and generate electricity when stretched. The threads (called "twistron") could lead to new types of generators or self-powered wearables that can track your heart rate and breathing.
As shown below, the nanotube threads must be spun very tightly to have the right amount of elasticity. When pulled, the change in volume and friction frees electrons from the threads, which can be released when dunked in an electrolyte like salt water. "When you insert the carbon nanotube yarn into an electrolyte bath, the yarns are charged by the electrolyte itself," says research lead Dr. Na Li. "No external battery, or voltage, is needed."

More at: https://finance.yahoo.com/news/carbo...132100751.html

[angelatc]

I already know it's going to cause cancer and the autismz.