The Nature Network on MSN

How Is The Total Mass Of The Universe Calculated?

We obviously can’t put the universe on a giant set of scales, but scientists have found astonishingly clever ways to […] ...
Digital Camera World on MSN

100 years of Leica – how a 'miniature format' took over the world of cameras forever

Photography was revolutionized after the appearance at the 1925 Leipzig Spring Fair in Germany of the Leitz Kleinfilmkamera – ...