February 29, 2020 8:59 AMWASHINGTON (AFP) - US President Donald Trump announced Republican lawmaker John Ratcliffe as his intelligence chief Friday (Feb 28), sparking fresh controversy over a crucial position that has lacked a permanent office holder for months.
How an electron behaves in an atom, or how it moves in a solid, can be predicted precisely with the equations of quantum mechanics. These theoretical calculations agree with the results from experiments. But complex quantum systems, which contain many electrons or elementary particles can currently not be described exactly. A team has now developed a simulat […]
A guest post by Beth Burroughs, Montana State UniversityYou might have noticed a recent flurry of activity by mathematicians engaged in discussions about the teaching of mathematics. A few examples:The Common Vision project is a joint effort of five organizations in the mathematical sciences (AMATYC, AMS, ASA, MAA and SIAM) focused on modernizing undergradua […]