Pagina 260

Water Journal, multidisciplinary research journal http://www.waterjournal.org/

Double Helix Water http://ibodywell.com/wp-content/uploads/2015/01/DHW-eBooklet-for-web-

Alexei Kljatov http://chaoticmind75.blogspot.ru/2013/08/my-technique-for-snowflakes-shooting.html

Snow Crystals http://www.its.caltech.edu/~atomic/snowcrystals/ 

Types of snowflakes http://www.its.caltech.edu/~atomic/snowcrystals/class/snowtypes4.jpg

De Groene Rekenkamer http://www.groenerekenkamer.nl/gletsjers/

Santos Bonacci, Flat Earth