Uranium production in Arizona dates to the late 1940s. Between 1948 and 1969 it produced 18 million pounds of uranium concentrate from over 300 mining operations. The Sun Valley Mine, also known as ...
On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table. He ...
Today's most powerful computers hit a wall when tackling certain problems, from designing new drugs to cracking encryption ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results