1. Anyone know the velocity of heat rising?  (Heat, All Topics)
posted by Derek on 09/14/2007 09:42:42 PM MST
3 comments

2. Converting Solar Heat into electricity?  (Newbies, All Topics)
posted by Derek on 08/01/2007 05:17:29 PM MST
11 comments

3. Cant find ANY ceiling motor conversion How To Guide  (Mechanical, All Topics)
posted by Derek on 07/16/2007 06:40:37 PM MST
6 comments

4. Using styrofoam blades for a VAWT?  (Wind, All Topics)
posted by Derek on 05/22/2007 03:27:19 PM MST
14 comments

5. Wind power, start with a ceiling fan?  (Newbies, All Topics)
posted by Derek on 04/11/2007 04:22:25 AM MST
2 comments

6. still have blank hotlist items.....  (Reviews, All Topics)
posted by Derek on 03/17/2007 01:35:05 AM MST
7 comments

7. Random thought, controlled welding with sunlight?  (Solar, All Topics)
posted by Derek on 01/15/2007 02:18:37 AM MST
19 comments

8. Makeshift alternator for VAWT  (Wind, All Topics)
posted by Derek on 01/14/2007 04:49:48 AM MST
12 comments

9. Need to find vibration switch in the US....  (Controls, All Topics)
posted by Derek on 12/04/2006 03:39:09 AM MST
10 comments

10. heating directly from wind power  (Heat, All Topics)
posted by Derek on 10/15/2006 02:04:21 AM MST
1 comment

11. Finally Back! Solar Heat  (Heat, All Topics)
posted by Derek on 10/15/2006 01:59:44 AM MST
9 comments

12. For Sale: Tempered Glass  (Classifieds, All Topics)
posted by Derek on 07/06/2006 10:14:05 PM MST
0 comments

13. Velocity of thermal siphoning?  (Heat, All Topics)
posted by Derek on 06/16/2006 05:11:53 PM MST
17 comments

14. VCR parts work for small VAWT?  (Wind, All Topics)
posted by Derek on 06/03/2006 04:42:16 PM MST
5 comments

15. Generator or Alternator?  (Wind, All Topics)
posted by Derek on 05/18/2006 06:36:32 PM MST
9 comments

16. FS: Free Energy Solar Oven  (Classifieds, All Topics)
posted by Derek on 05/17/2006 04:52:46 PM MST
17 comments

17. How many RPM's are needed?  (Wind, All Topics)
posted by Derek on 05/14/2006 09:39:33 PM MST
33 comments

18. General Wind questions  (Wind, All Topics)
posted by Derek on 05/03/2006 08:38:06 PM MST
20 comments

19. Photo Sensors and a tracking device  (Solar, All Topics)
posted by Derek on 04/14/2006 12:41:31 PM MST
9 comments

20. Question about stepping up the voltage....  (Homebrewed Electricity, All Topics)
posted by Derek on 12/18/2005 10:35:34 PM MST
12 comments

21. What are the flaws of vertical wind turbines?  (Wind, All Topics)
posted by Derek on 12/10/2005 02:44:20 PM MST
11 comments

22. Looking for cheap heat supplement  (Heat, All Topics)
posted by Derek on 11/30/2005 04:04:08 PM MST
37 comments

23. Question about hotlist  (Reviews, All Topics)
posted by Derek on 11/24/2005 04:09:26 AM MST
2 comments

24. Combining Solar Panels  (Solar, All Topics)
posted by Derek on 11/20/2005 10:26:06 PM MST
15 comments