Longest Straight Line Paths on Water or Land on the Earth

This is the paper linked from the article being discussed over here:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=16965650" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=16965650</a>