For one-third of the price of one F-35 Lightning II, the Pentagon made a key investment to ensure its supply of rare earth elements. The Department of Defense earlier this month announced that Lynas ...

A worker waters the site of a rare earth metals mine at Nancheng county, Jiangxi province on December 30, 2010. (Stringer/Reuters) Eugene Gholz analyzes the economic and security consequences of China ...

Jen Hubley Luckwaldt has over 15 years of experience writing and editing personal finance content. Her passion is making information about finance and investing accessible to everyone. Prior to ...

THE preface to the first edition of Sir Thomas Heath's translation of Euclid's “Elements” begins with the following quotation from De Morgan: “There never has been, and until we see it we never shall ...

The covalent radius (a measure of how large individual atoms are) shows different trends if you are moving across a period or down a group. A comparison of the relative covalent radii of atoms is ...

Radioactivity is a part of our earth - it has existed all along. Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the ...