#Vitarkka: A low cost green building solution developed by Sonam Wangchuk for the Indian Army to keep them warm in unforgiving weather conditions. It's extremely impressive how simple materials provided by nature can be used and make a home which is upto 40 degrees warmer than the external temperature. https://www.youtube.com/playlist?list=PLsQuKBtKkgogPUlSDVmKdbbdmt_60iP4r