There must be Many Thousands of Spent Highly Radioactive Nuclear fuel rods Buried or stored Somewhere . What if they could be used to produce Literally Free Electricity. They I Believe remain radioactive for many many years,so if this energy could be used instead of thrown away that can only be a good thing. The Point REVERSE VALVE TECHNOLOGY Valves are virtually Obsolete now but the technology was sound. Valves by nature give off Radiation as a matter of course, If a radioactive source was emmited towards a valve would it not force the valve to produce electricity. Obviously i am not talking about the standard household valve so constantly found in old radios and Televisions. But with basic old valve technology and with newer Materials to produce Anodes and Cathodes could not a valve be built whith literally a core consisting of a spent fuel rod Gated as to control the radioactive Output Producing a controlled output Obviously we are talking about a valve Many times bigger than a standard valve Basically a new type but in genral is it Possible .