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why ship the junk to china?
By electrondady1, Section Reviews Posted on Sun Aug 24, 2008 at 04:45:26 PM MST
there's germainium in those hills!

traditionaly big vertical axis mills were used to grind grain into flour
i watched a tv show were some guys did just that.
i wonder if it would be possible to grind electronic stuff like tv's and computers
into powder and separate the various substances according to there relative densities.

why ship the junk to china? | 6 comments (6 topical)

Re: why ship the junk to china? (3.00 / 0) (#1)
by fungus on Sun Aug 24, 2008 at 11:00:19 AM MST

Usually they just melt it and let the different materials float out ...

'Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.'-Albert Einstein
Fungus - www.reenergy.co.uk

Re: why ship the junk to china? (3.00 / 0) (#2)
by Stonebrain on Sun Aug 24, 2008 at 11:33:15 AM MST

The best way is to seperate the different components as far as possible before going to rough methods like melting (or grinding?).
Unfortunately this is very work-demanding.That's why the junk goes to china.

cheers,
stonebrain

Re: why ship the junk to china? (3.00 / 0) (#3)
by Stonebrain on Sun Aug 24, 2008 at 12:43:10 PM MST

"traditionaly big vertical axis mills were used to grind grain into flour
i watched a tv show were some guys did just that."

In fact I never saw vawts grinding grain.
where was that?

cheers,
stonebrain

Re: why ship the junk to china? (3.00 / 0) (#4)
by electrondady1 on Sun Aug 24, 2008 at 01:11:24 PM MST

Persia, long long ago.

[ Parent ]

Re: 1,000 BC Persian VAWT? (3.00 / 0) (#5)
by spinningmagnets on Sun Aug 24, 2008 at 02:30:40 PM MST

Here's a good animation:

http://www.windpower.org/en/tour/wtrb/persian.htm

And here's a pic of the real deal:

http://www.deutsches-museum.de/en/exhibitions/energie/power-engines/wind-power/

"The early bird may get the worm, but its the second mouse that gets the cheese" -Larry the Cable Guy

[ Parent ]

Re: why ship the junk to china? (3.00 / 0) (#6)
by richhagen on Mon Aug 25, 2008 at 12:12:24 AM MST

Here is a photo of the ruins of an old Persian VAWT:

Then there was Jacques write up of his tour of a 150 year old grain grinding HAWT mill in the Netherlands:
http://www.fieldlines.com/story/2008/1/27/0144/86608
Rich
'A Joule saved is a Joule made'
[ Parent ]

why ship the junk to china? | 6 comments (6 topical)

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