http://news.ycombinator.com/item?id=1994951 - physorg.com - no comments
http://news.ycombinator.com/item?id=1991763 - physorg.com - several comments
http://news.ycombinator.com/item?id=1989565 - nature.com - no comments
http://news.ycombinator.com/item?id=1994951 - physorg.com - no comments
http://news.ycombinator.com/item?id=1991763 - physorg.com - several comments
http://news.ycombinator.com/item?id=1989565 - nature.com - no comments