- Recent Posts
- News Feeds
- PPO Notes & Groups
- Site Help
- PPO's Principles of Preparedness
- Speaker's Bureau
- Gardening notes and charts
- Groups
- Meeting Minutes
- Council meeting minutes
- 2005-06 PPO Business meeting minutes
- 2005-10 PPO Business meeting minutes
- 2005-11 PPO Business meeting minutes
- 2006-01 PPO Business meeting minutes
- 2006-02 PPO Council meeting
- 2006-06 PPO Council meeting minutes
- 2006-07 PPO Council meeting minutes
- 2006-10 PPO Council meeting minutes
- 2007-01 PPO Council meeting minutes
- Council meeting minutes
- Portland Neighborhood Associations Links
- PO Task Force Position Paper
- PPO group management, process and logistics
- Resources
homemade solar furnaces--HIGH TEMPERATURE melts steel and glass
Submitted by wlewis on March 6, 2008 - 9:10pm.
Here are links to the high temp solar furnaces i mentioned last night. One is made using a wide-screen TV, which apparently is a fresnel lens.
http://xenotechresearch.com/solfurn1.htm
using a satellite dish--
http://xenotechresearch.com/solvari1.htm
