But magnets will NOT save the world. Consider this: There are known recoverable reserves of Rare Earth Elements in the entire world of approximately 6 million metric tons. Of this REE about 20% is neodymium. According to Sean, he expects to get 0.5 W/cc from his technology.
The density of NdFeBo magnets is 7.5 g/cc. The Nd content is 27% by weight; so, the density of Nd in a magnet is 2.03 g/cc. This means that we can expect to get 0.5 W per 2.03 g of Nd. With known extractable reserves of 1.2 million metric tons of Nd in the world, if we used ALL the Nd to make electricity, we could generate 1.2 x 10^12 g times 0.25 W/g or 300 Gigawatts. The US generating capacity in Dec of 2005 was 1.07 Terawatts. Terry
