Yale-Led Team Solves Half-Century Carbon-Crystal Mystery
slew writes "Unlike its more famous carbon cousins: diamonds and fullerenes, you've probably never heard of M-Carbon, but this form of compressed graphite which is as hard as diamonds has baffled researcher for half a century. Over the past few years, many theoretical computations have suggested at least a dozen different crystal structures for this phase of carbon, but new experiments showed that only one crystal structure fits the data: M-carbon."
Nice of TFS to not link to anything describing M-carbon.
Maybe this will help. Maybe it was "common knowledge", but I personally hadn't heard of the stuff till now.
How is the Riemann zeta function like Trump rallies? Both have an endless number of trivial zeros.