Re: [DIYbio] Re: I had idea on biospheres.

On Sun, Oct 28, 2012 at 10:17 PM, Mega <masterstorm123@gmail.com> wrote:
> We've gone far away from biology, haven't we?

Not exactly, because water is important for life as we know it, and so
is radiation shielding.

> Well, when you said one would need radiation shielding, I thought of a
> spacecraft that resembles the "500 Bio Dollar approach".

"Bio dollar"? Is this like Bitcoin?

> .... Because "Mars
> direct" *needs* lower shielding. I think the study/report was done by the
> (father of G.W.B) Bush administration. Meaning the craft has roughly the
> mass of the ISS.

Mars Direct is Robert Zubrin/Mars Society, which isn't specific to any
administration. In fact, Mars Direct was in part a negative *response*
to the studies funded by the Bush Sr. administration.

Zubrin is notorious for waving away the radiation threat. The fact is,
the *kind* of radiation (GCR) most often cited as a long-term
shielding problem still isn't well-characterized, I believe in part
because it's not that easy to produce continuously.

> I'm not american, so I've got no big overview on who ceases plutonium
> production, but obviously it was under the Obama administration.

"Obviously"? Obviously, you (once again) have no idea what you're talking about.

"The United States stopped producing plutonium-238 in 1988; and since
1993, all of the plutonium-238 used in American spacecraft has been
purchased from Russia."

In other words, production ceased during the Reagan/Bush years.

Obama? His administration has tried to revive it.

"In 2009, the U.S. Department of Energy (DOE) requested funding to
restart American domestic production.[5][6] It is estimated that to
restart production will cost between $75 million and $90 million over
five years.[7] Since the DOE would be responsible for producing the
plutonium-238 for NASA, the two agencies want to split the cost of
restarting production.[7] Congress has given NASA some of the money
requested, $10 million in 2011 and the same in 2012.[7] The U.S.
Congress have denied the DOE's funding request for three years in a
row."

> I like
> biology far more than those politics, which determine the kind of transport
> used.

In this case, you have the political orientation of an enabling
technology completely backwards. And you could have looked up these
facts in 10 seconds.

> Technology is not the limiting factor, by far not. Money is.

No. There's plenty of money. Political will is the problem.

> Also, the original issue then was Biospheres on Mars, not how to get them
> there.

Since biospheres will need to be shielded ON THE WAY THERE, and will
need similar shielding if they are hosted in surface habitats, how to
get them there is very relevant.

> I'm no expert in that, just know and apply the rocket equation and
> some hohmann transfer orbit theory.

If you think you know as much about those things as you've claimed to
know about other subjects on this thread, you probably don't know very
much.

> And more in detail, I was inerested in bacteria producing biospheres by
> making greenhouse gasses. You just would have to take 1 Gramm of bacteria to
> Mars, and they would multiply and do the job.

He states, flatly, as if it were a fact already.

> No big deal ....

Nothing ever is, with you. (Except looking things up.)

Regards,
Michael Turner
Project Persephone
1-25-33 Takadanobaba
Shinjuku-ku Tokyo 169-0075
(+81) 90-5203-8682
turner@projectpersephone.org
http://www.projectpersephone.org/

"Love does not consist in gazing at each other, but in looking outward
together in the same direction." -- Antoine de Saint-Exupéry

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