When the “walking-powered gadgets” is available in the US?
Yes, it is very much possible because right now a group of scientists from different universities in the United Kingdom such as Cranfield University, University of Salford, University of Liverpool are now doing research and experiments to make that kind of system a reality. The United Kingdom’s Ministry of Defense is the one funding this research because they want to use it for their military so that the soldiers will not carry with them batteries to power their different gadgets. For now, the experimental device can generate about 2 milliwatts. And the scientists believe that soon, they will be able to produce about 30 milliwatts and this is enough for a GPS unit to keep running. When that time comes, it wouldn’t take long for the technology to develop and be made available for mass production