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Rare earth metal

rare earth metal --> lanthanides

Those elements with atomic numbers 57-71 which closely resemble one another chemically and were once difficult to separate from one another.

Synonym: rare earth elements.

Origin: Lanthanum, first element of the series


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magnetic field and bone density

... being used to make magnets or neodymium or rare earth metal magnets?

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by mith
Fri Jan 25, 2008 7:58 am
 
Forum: Human Biology
Topic: magnetic field and bone density
Replies: 9
Views: 4731

The Fiber Disease

... active and passive EO/IR (electro-optic and infrared); hyperspectral, etc. (2) Sensor Fusion and ... germanate-based glasses which permit high rare-earth doping levels, (ii) fiber coatings based on ... synthesis of semiconductor-ferroelectric and metalferroelectric core/shell co-axial nanostructures ...

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by Nadas Moksha
Fri Dec 15, 2006 8:00 am
 
Forum: Human Biology
Topic: The Fiber Disease
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