Researchers sent a text message using only vodka and a fan

Other submissions of this story, although none have any discussion:

https://news.ycombinator.com/item?id=6948140 (extremetech.com)

https://news.ycombinator.com/item?id=6943036 (laptopmag.com)

https://news.ycombinator.com/item?id=6942179 (sciencedaily.com)

https://news.ycombinator.com/item?id=6939145 (plosone.org)

https://news.ycombinator.com/item?id=6939133 (scienceagogo.com)

https://news.ycombinator.com/item?id=6935903 (arstechnica.com)