THINGS WE LEARNED IN THIS ISSUE

+ When you want to lay the first undersea cable, you need GUTTA PERCHA to make it work. + Elephants LIE DOWN ONCE A WEEK to get a really good sleep, instead of a standing nap. + The machinery in NASA’s new VENUS SURFACE ROVER has to run on clockwork, not silicon. + There are places so polluted the RIVERS ARE RED AND THE SNOW IS BLACK but we can fix this. + One day you might have to choose between a FULL EYE TRANSPLANT and an electronic retina.