"La máquina del tiempo" de H.G. Wells

Capítulo 7 y 8

http://www.omicrono.com/2017/01/curiosidades-sobre-la-nieve/

https://hipertextual.com/2017/01/microbios-flotan-aire-del-metro-barcelona

http://www.bbc.com/news/health-38651596

https://hipertextual.com/2017/01/cern-momento-magnetico-antiproton

http://www.omicrono.com/2017/01/ramon-y-cajal-dibujos-cerebro/