Originally published on Wed October 5, 2011 5:34 am
Four men were arrested Tuesday for their alleged roles in what the U.S. attorney for the District of Columbia, Ronald Machen, alleges was "one of the most brazen corruption schemes in the history of federal contracting."
Israeli scientist Daniel Schectman was awarded the 2011 Nobel Prize for chemistry for his discovery of quasicrystals, the Royal Swedish Academy of Sciences announced Wednesday.
The discovery, made in 1982, changed the way chemists look at solid matter.
"Contrary to the previous belief that atoms were packed inside crystals in symmetrical patterns, Shechtman showed that the atoms in a crystal could be packed in a pattern that could not be repeated," the academy said.