I presented a workshop on Simple Solar at the Boston Skill Share on a windy Sunday, April 19, outside the Stata Center at MIT. Werner and Julie of Videosphere recorded me and I finally got around to doing a rough edit of the first part, the simplest solar devices that anyone can make to disinfect and heat water and cook food.
It's six and a half minutes long, I have the sniffles and say "All right?" a lot but the rest of the information is good. After all, solar heating is remarkably simple: dark heats up light reflects clear keeps out the wind
More on solar water disinfection at Sodis
Sodis in Sri Lanka
Solar oven at refugee camp in Chad
Kyoto Box solar cooker http://news.bbc.co.uk/...
Plans for other do it yourself solar projects at http://builditsolar.com
Remember, Solar IS Civil Defense