An attractive material: Neodymium (shown here) is one of the rare-earth elements that are key to making very strong magnets for compact electric motors. Credit: Hi-Res Images of Chemical Elements Energy — China’s Rare-Earth Monopoly The rest of…
An attractive material: Neodymium (shown here) is one of the rare-earth elements that are key to making very strong magnets for compact electric motors. Credit: Hi-Res Images of Chemical Elements Energy — China’s Rare-Earth Monopoly The rest of…