CMI in this context is the
Critical Materials Institute at the
Iowa State Ames Laboratory in Ames, Iowa. They have
partners from other national laboratories, universities, and industry, too. Rare earths, while not necessarily as rare as the word "rare" implies, are hard to mine, separate, and use. They are often found in parts per million quantities, so it takes supercomputers to suss out which deposits are worth going after. This is what Dr. King and his coworkers spend their time doing; finding concentrations of rare earths that can be mined and refined profitably.
On November 3 we
asked you for questions to put to Dr. King. Timothy incorporated some of those questions into the conversation in this video -- and tomorrow's video too, since we broke this into two parts because, while the subject matter may be fascinating, we are supposed to hold video lengths down to around 10 minutes, and in this case we still ended up with two videos close to 15 minutes each. And this stuff is important enough that instead of lining up a list of links, we are giving you one link to Google using the search term "
rare earths." Yes, we know Rare Earth would be a
great name for a rock band. But the mineral rare earths are important in the manufacture of items from strong magnets to touch screens and rechargeable batteries. (
Alternate Video Link)