In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers from the University of Rochester, in a surprise discovery, ...
Nov 10, 2015 in Quantum Physics
Austria's largest state said Thursday that 100 percent of its electricity is now generated using renewable sources of energy.
Nov 05, 2015 in Energy & Green Tech