Jed Rothwell wrote:
I wrote:
There is some debate about how much of these precious metals are
available elsewhere in the solar system, but I do not think this
matters much. Once you leave the Earth's atmosphere and go to the
moon or an asteroid, you can then use raw solar energy to vaporize
I wrote:
solar system to prospect for precious metals. 300 GW of Ne-powered
rockets is . . .
Oops. Meant Nd-powered. As in Nd-magnet electric rocket, an Ion or
MPD or what-have-you.
Regarding the availability of neodymium (Nd), see the USGS page on rare earths:
http://minerals.usgs.gov/min
As Paul suggests, eventually magnets will be made from synthetic materials,
just as we now have fabric (e.g. polyester) made from synthetic materials.
We won't have to rely on rare earth elements.
Harry
Jed Rothwell wrote:
> Terry Blanton wrote:
>
>> But magnets will NOT save the world. Conside
I wrote:
There is some debate about how much of these precious metals are
available elsewhere in the solar system, but I do not think this
matters much. Once you leave the Earth's atmosphere and go to the
moon or an asteroid, you can then use raw solar energy to vaporize
as much low-grade or
On 3/21/07, Jed Rothwell <[EMAIL PROTECTED]> wrote:
There is not much in ocean water, either: 3.3 ng/kg.
Yes, and the problem is that we are already up against the demand
curve with present applications. HEV's use a lot of Nd.
Terry
On 3/21/07, Paul Lowrance <[EMAIL PROTECTED]> wrote:
Or possibly some type of new magnet -->
http://www.physorg.com/news84643085.html
A hydrogen magnet would solve the problem!
I think the nanosolar technology will probably dominate.
Terry
Terry Blanton wrote:
But magnets will NOT save the world. Consider this:
There are known recoverable reserves of Rare Earth Elements in the
entire world of approximately 6 million metric tons. . . .
There is not much in ocean water, either: 3.3 ng/kg. More than Pd or
Au, but not enough to ex
Terry Blanton wrote:
But magnets will NOT save the world. Consider this:
There are known recoverable reserves of Rare Earth Elements in the
entire world of approximately 6 million metric tons. Of this REE about
20% is neodymium. According to Sean, he expects to get 0.5 W/cc from
his technology.
Terry Blanton wrote:
> But magnets will NOT save the world. Consider this:
>
> There are known recoverable reserves of Rare Earth Elements in the
> entire world of approximately 6 million metric tons. Of this REE about
> 20% is neodymium. According to Sean, he expects to get 0.5 W/cc from
> his te
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