RE: For David Brin and the rest of you

2014-03-02 Thread Ellen S .
literally can't afford to keep paying for that crap. Solar energy beamed down from outer space? I don't know anything about that. ~Ellen > Date: Wed, 4 Sep 2013 17:40:15 -0300 > Subject: Re: For David Brin and the rest of you > > E

RE: For David Brin and the rest of you

2013-09-07 Thread Keith Henson
From: "Dan Minette" >At $10/watt, this is about 4 million. >How badly do you want to see this demo? > I don't expect to see it, ever. But, that demo is an example of the very easy baby steps that would have to be taken very early in the project. The fact that we don't have a demo of baby step

Re: For David Brin and the rest of you

2013-09-06 Thread Dave Land
On Sep 6, 2013, at 12:37 PM, ALBERTO VIEIRA FERREIRA MONTEIRO chided: > Dan Minette thread-killed: >> >> I don't expect to see it, ever. I can see Alberto taking issue with this statement, except that it's just Dan stating his expectation. Are we to judge what Dan expects? >> But, that demo is

RE: For David Brin and the rest of you

2013-09-06 Thread Dan Minette
>At $10/watt, this is about 4 million. >How badly do you want to see this demo? I don't expect to see it, ever. But, that demo is an example of the very easy baby steps that would have to be taken very early in the project. The fact that we don't have a demo of baby steps is a very good indi

Re: For David Brin and the rest of you

2013-09-06 Thread Keith Henson
managing the list at brin-l-ow...@mccmedia.com From: David Hobby >On 9/5/2013 4:54 PM, Keith Henson wrote: >> The propulsion lasers to get the parts up to GEO at a cost where the >> whole thing makes economic sense, those are weapons, game changing >> weapons. And if I had to bet, it wo

Re: For David Brin and the rest of you

2013-09-06 Thread ALBERTO VIEIRA FERREIRA MONTEIRO
Dan Minette thread-killed: > > I don't expect to see it, ever. But, that demo is an example of the very > easy baby steps that would have to be taken very early in the project. The > fact that we don't have a demo of baby steps is a very good indicator of > where the project is. > This is not fai

Re: For David Brin and the rest of you

2013-09-05 Thread Keith Henson
From: Pat Mathews > How much does it cost in energy as well as in dollars? Substantial. I figured this for an elevator and got that the elevator had a 3 day payback for the parts and the same for lifting. The calculated energy investment for a kW of capacity was paid back in 53 days. Figured

RE: For David Brin and the rest of you

2013-09-05 Thread Dan Minette
>It looks like a combination of Skylon, a project being developed in the UK and big propulsion lasers will get the >cost to under $100/kg to GEO. Do you have any vidios of lasers holding up, say, a 10kg object, for 20 minutes and keeping it under control. This would be one of the easy feasabi

Re: For David Brin and the rest of you

2013-09-05 Thread David Hobby
On 9/5/2013 4:54 PM, Keith Henson wrote: The propulsion lasers to get the parts up to GEO at a cost where the whole thing makes economic sense, those are weapons, game changing weapons. And if I had to bet, it would be for them to be controlled by the Chinese. Keith Henson _ Now t

Re: For David Brin and the rest of you

2013-09-05 Thread Medievalbk
In a message dated 9/5/2013 4:24:09 A.M. US Mountain Standard Time, albm...@centroin.com.br writes: where the Mad Scientist tries to destroy the Earth by placing an enormous mirror or lens in orbit, concentrating solar energy? It's not in orbit; it's in London melting parked cars. Google

Re: For David Brin and the rest of you

2013-09-05 Thread David Hobby
On 9/5/2013 7:24 AM, ALBERTO VIEIRA FERREIRA MONTEIRO wrote: David Hobby wrote: Or are you worried about energy being beamed down inefficiently, producing much more heat than just the amount from people using energy directly? No, even if it was possible to beam energy with 100% efficiency... i

RE: For David Brin and the rest of you

2013-09-05 Thread Pat Mathews
> Date: Thu, 5 Sep 2013 08:24:00 -0300 > Subject: Re: For David Brin and the rest of you > From: albm...@centroin.com.br > To: brin-l@mccmedia.com > > David Hobby wrote: > > > > Or are you worried about energy being beamed down inefficiently, producing > >

Re: For David Brin and the rest of you

2013-09-05 Thread ALBERTO VIEIRA FERREIRA MONTEIRO
David Hobby wrote: > > Or are you worried about energy being beamed down inefficiently, producing > much more heat than just the amount from people using energy directly? > No, even if it was possible to beam energy with 100% efficiency... it's still energy. It comes down, it must get out. If not,

Re: For David Brin and the rest of you

2013-09-04 Thread David Hobby
On 9/4/2013 4:40 PM, ALBERTO VIEIRA FERREIRA MONTEIRO wrote: Even if these things were economically viable (which they probably ain't), ambientally it would be a disaster. I can't image the Earth getting such extra amount of radiant energy and not turning it (she? Gaia?) into a hell much worse th

Re: For David Brin and the rest of you

2013-09-04 Thread ALBERTO VIEIRA FERREIRA MONTEIRO
Even if these things were economically viable (which they probably ain't), ambientally it would be a disaster. I can't image the Earth getting such extra amount of radiant energy and not turning it (she? Gaia?) into a hell much worse than the most pessimistic images of the most radical ecogroups.

RE: For David Brin and the rest of you

2013-09-04 Thread Pat Mathews
> Date: Wed, 4 Sep 2013 10:10:33 -0700 > Subject: For David Brin and the rest of you > From: hkeithhen...@gmail.com > To: brin-l@mccmedia.com > > As of last April, there seems to be a solution to the > energy/carbon/climate problems, even water. Relatively cheap, less > than ten dollars a perso