Pitted Pit

10 responses to “Pitted Pit”

1. 

   Astrocatou

   Nov 21, 2010 at 10:46 pm

   You have campfires in copper pots…?
   Must be nice…
   🙂

   Reply
2. 

   jurvetson

   Nov 21, 2010 at 11:14 pm

   Oh, it still works, now with better air flow… =)

   I think there are several large copper nodules still to be found under it.

   

   The pit’s core was too hot to handle 24 hours afterward… If we had a secondary copper thermite reaction, we may have peaked at 7000°

   Reply
3. 

   Astrocatou

   Nov 21, 2010 at 11:15 pm

   [http://www.flickr.com/photos/24270806@N06]
   Exactly…
   But having left mine on a hot stove once..it does clean up nicely.

   I suppose the oxidizer is what allows such a temperature.

   Reply
4. 

   solerena

   Nov 22, 2010 at 3:26 am

   fun – 7000* is possible?

   Reply
5. 

   jurvetson

   Nov 22, 2010 at 5:00 pm

   Perhaps, off of the copper or the iron in the pit… Here’s a how-to guide discussing 7000°…. and wikipedia on copper thermite

   Reply
6. 

   Dr DAD (Daniel A D’Auria MD)

   Nov 23, 2010 at 10:44 am

   I take it that you toast your marshmallows from a half a light year away??

   Reply
7. 

   Broken Toy Shop

   Nov 23, 2010 at 12:28 pm

   Cadwelding is surprisingly boring when done a on normal small scale.
   Your results are much more impressive then ours, but to be honest, we were welding on a live 32" gas line, so boring was good.

   Reply
8. 

   djade20

   Jan 8, 2011 at 3:54 pm

   F or C?

   Reply
9. 

   jurvetson

   Jan 8, 2011 at 10:49 pm

   °F

   Some newly-found photos of the burn here…

   Reply
10. 

    Astrocatou

    Jan 9, 2011 at 12:16 am

    I thought I was a pyro (in younger days..)…
    But you have a lot of potential with pails of LOX
    http://www.youtube.com/watch?v=TBLr_XrooLs

    Reply