I have heard and read suggestions to take asteroids going in the right direction, but if you really look at it does not pay. You must make the delta V to catch...
Yes, is there anything different than what some of us advocated when we started? I still agree with almost all of it. It is a good chart. Jim Brown ... From:...
The only system that will work on loose and hard material is a cable around it. It is the easiest to place. And the most stable lowest mass, and for anything...
Pat, Jim, Jan Pat brought back the idea of the cycler (Dec. 30th), ie. using asteroids as spaceships traveling in transfer orbits between Earth and Mars. I'm...
Jan, you mention your Excel file where the various steps of operational evolution are synoptically shown. Can't find it in the files section. Where is it? Or...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the NEAmines group. File :...
NEAmines@yahoogroups....
Jan 4, 2009 2:33 pm
1804
Ueli, Sorry about the confusion, but I had previously received your Powerpoint layout directly through the NEA notification email this way. When I tested this...
Ueli, there is a lot of published material out there that needs sifting and collating, yes, I am afraid, a tedious academic sorting and evaluating process. It...
Jim, Is anything in the chart I sent different to what we advocated when we started? Not really as far as I can see. On the one hand this is surprising in the...
Hi Jan, You were entirely correct: I did get that Excel already on 26th. Just got lost in the whole Christmas hullabaloo. Sorry! But I'm glad you've uploaded...
At Ãœli's suggestion, I am eliciting brainstorming ideas from this group concerning victory conditions and player objectives for my boardgame project "High...
I would like to propose a method for the mining of asteroids. This method might work best on the more solid asteroids. Some of you might remember that the...
Looking at the rectenna on NEO miners for receiving beamed microwave power, I have some questions. Does anyone know the virtues of using 2.45 GHz vs. 0.915 GHz...
Phil, good points............. It seems to me that we are dealing with two issues here, inverse square law, and the frequency at which rocks can be pulverised...
Jan, Phil, Jim, Just a minor idea that struck when reading the below message and after realizing Jim's idea for a beanstalk on an asteroid may actually work...
Jan, Thank you for yours and Ãœli's thoughtful replies, am reviewing the massive history log at this site before I ask any more impertinent questions....
Some possibilities there, Ueli. However, some reservations about a secure anchorage for a tether given the nature of the surface. Placing enough panels on the...
A reality check about resources, both space and terrestrial: I come from Tucson, and am surrounded by copper, silver, and gold mines that have come and gone....
Yes, it is an open question, Phil. If you look in the 'NEAmines/Files' there is a good 'New Scientist' estimate of usable metal reserves: HowLongWillItLast.jpg...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the NEAmines group. File :...
NEAmines@yahoogroups....
Jan 7, 2009 3:08 pm
1820
Update: To add to the archives, I have created a new folder in the 'Shielding' section with some more background material on debris impacts on spacecraft. ...
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