In a Festschrift for Einstein's seventieth birthday in 1949, Gödel demonstrated the possibility of a special case in which, as Palle Yourgrau described the result, «the large - scale geometry of the world is so warped that there exist space - time curves that bend back on themselves so far that they close; that is, they return to their starting point.» (firstthings.com)
These bloody events merit remembering today as India approaches its seventieth anniversary as the world's most populous democracy. (firstthings.com)
It falls on the seventieth anniversary of the liberation of the Auschwitz - Birkenau extermination camp, known as «the death factory.» (firstthings.com)