Scientists have developed the breakthrough betavoltaic power cells that are constructed from semiconductors and use radioisotopes as the energy source. As the radioactive material decays, it emits beta particles that transform into electric power that is capable of fueling an electrical device like a laptop for years. The best part about these cells is when they eventually run out of power: They’re totally inert and non-toxic, so environmentalists needn’t fear these high-tech scientific wonder batteries. If all goes well, plans are for these cells to reach store shelves in 2 or 3 years. Read the complete story here.