The mystery of bleach solved at last

You may find it very hard to believe that for over 200 years, scientists have known that bleach kills germs without being able to understand how this happens. Just a few days ago U.S. scientists managed to find how bleach does its dirty work. The active ingredient is hypochlorous acid (HOCl); this acid attacks the proteins [...]

Everything you wanted to know about Easter Island but were too afraid to ask

Geography Easter Island (Rapa Nui in the native Easter Island language) is situated in the southeastern Pacific Ocean - it’s an overseas territory of Chile. It’s the most isolated inhabitated area, and it’s famous for the monumental statues, called moai (pronounced MOE-eye) which have fascinated and baffled people for many, many years; and still, no good [...]