Article of the day for March 5, 2018
Article of the day is Thorium. Check it out: http://ift.tt/1oWeX6W
Posts
Has dopamine got us hooked on tech?
Has dopamine got us hooked on tech? Silicon Valley is keen to exploit the brain chemical credited with keeping us tapping on apps and social media.
Picture of the day for March 5, 2018
Picture of the day on March 5, 2018: Fountain in the Old City of Baku, capital of Azerbaijan.
lorn: Word of the day for March 5, 2018
lorn , adj : (obsolete) Doomed; lost. (archaic) Abandoned, forlorn, lonely.
Article of the day for March 5, 2018
The Article of the day for March 5, 2018 is Thorium . Thorium is a chemical element with symbol Th and atomic number 90. A reactive actinide metal, its chemistry is dominated by the +4 oxidation state; it is silvery and tarnishes black in air, forming the dioxide. It is malleable and moderately hard, with a high melting point. Its most stable isotope, 232Th, is weakly radioactive with a half-life of 14.05 billion years, roughly the age of the universe: it decays very slowly to stable lead. Thorium and uranium are the only two significantly radioactive primordial elements. Thorium is chiefly refined from monazite sands as a byproduct of extracting rare earth metals. It was discovered in 1829 by the Norwegian mineralogist Morten Thrane Esmark and identified by the Swedish chemist Jöns Jacob Berzelius, who named it after Thor, the Norse god of thunder. Applications were found for the element in the 19th century, but after its radioactivity was discovered in the early 20th century, it...
Roach Product - SNL
Roach Product - SNL "The only thing that can stop a bad roach is a good roach with a gun." March 4, 2018 at 03:42PM