Rare earths illuminate the problem.
Before a species becomes extinct, it must first be rare.
“But those are rare, rare, rare.
For rare steak, cook to 120 degrees; medium-rare is 130 degrees.
Not all rare earths are actually that rare.
These rare variants, they claim, are where the missing heritability will be found.
The appetite in the United States for products that include rare earths is enormous.
Francium, a natural radioactive isotope, is very rare and was not discovered until 1939.
Giant cystic craniopharyngioma is rare in general and extremely rare in adults.
It's so rare, in fact, that you're more likely to be struck by lightning than to commit the act.
For rare cook for 1½ minutes, for medium rare cook for 2 minutes and then 1½ on the other side.
In this highly censored society, it’s rare for ordinary people to make demands and openly express anger toward the government.
The celebratory dish features rare breed Hebridean lamb cooked for Cheshire friends against the backdrop of Tatton's magnificent house.
“It’s a rare disorder in general, it’s extremely rare in Asians, and it’s rare to be diagnosed as an adult.
But rare earths proved not so rare: companies elsewhere revived old mines and ramped up production; by late 2011 prices had plunged.
According to Rare Disease UK, there are between 6,000 and 8,000 known rare diseases – and five new ones are described in the medical literature every week.
Mr Fajgenbaum: Since the funding systems and the hurdles are shared across rare diseases, this model has the potential to have an impact on many more rare diseases.
Today, China supplies 97% of the world's demand for rare-earth metals, thanks to a far-sighted government policy going back to the 1960s that envisaged the rare earths as “the oil of the twenty-first century”.
On Sunday, the Japanese trade minister Akihiro Ohata urged China to begin shipping rare earths again, saying the Chinese vice minister of commerce had told him customs had tightened checks on rare earth exports to all destinations.
Recycle rates of rare earths from existing products, very low because of the expense and complexity involved, may also increase in future (Honda has already begun extracting more than 80% of its rare earth materials from nickel-metal hydride batteries).
rare
adj all
- not widely known; especially valued for its uncommonness
Example: a rare word
adj all
- recurring only at long intervals
Example: a rare appearance
adj all
- not widely distributed
Example: rare herbs
adj all
- having low density
Example: rare gasses
adj all
- marked by an uncommon quality; especially superlative or extreme of its kind
Example: what is so rare as a day in June
adj all
- (of meat) cooked a short time; still red inside
Example: rare roast beef
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