Tagged: technology

48

Climate Change Explained

Views:706650|Rating:4.65|View Time:5:50Minutes|Likes:6480|Dislikes:491A straightforward explanation of Climate Change: the heat from human emissions is roughly equal to exploding 400,000 Hiroshima atomic bombs every day. Historically,...

30

Primitive Technology: Wood Ash Cement

Views:4914043|Rating:4.93|View Time:3:54Minutes|Likes:128533|Dislikes:1911Primitive Technology: Wood Ash Cement – Creating wood ash cement from scratch Subscribe: http://bit.ly/subPT | Never miss a video! Enable ‘ALL’ Notifications! More...