----- Original Message ----- From: "Reggie Bautista" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, October 16, 2003 2:44 PM Subject: Re: Chinese manned space flight (Spoilers for "At the Core" by Larry Niven
> Dan wrote: > >So, to get back to Damon's comments, let me ask a question. Why should a > >PR victory for a communist dictatorship elicit all that much interest? > > Because now there is another major player, a potential rival of our country, > that is capable of independently putting a human being in space. If they > can put a human in space, they can build their own space station (which > I believe is a stated goal of theirs), they can eventually lauch their own > manned Mars mission if they choose to, and they could eventually become > the world leader in terms of space exploration. How likely those things are > to happen are open to much debate. But the potential is there, and > therefore this event is newsworthy; maybe not front-page, dominating > all news kind of newsworthy, but certainly worthy of being reported and > noticed. The potential has been there ever since they had launch capacity. Putting one person into orbit does require a certain level of sophistication, but we did achieve it 40 years ago. There is no doubt that France, Germany, the UK all have the potential to put a person into orbit rather quickly. Their declining to do so relates to their relative security in terms of national self image, IMHO. I think that Damon's point on an emerging self identity is valid, and that we do need to watch for it. However, I think that non-destructive demonstrations of national pride are more to be encouraged than worried about. The best part of the space program in the '60s is that it was a way of showing who had the best missle technology without hurting anyone. > As to the issue of whether having a human presence is space at all is > important... just having a presence in orbit is an advantage because there > are things at this point that we don't even know that we don't know. > Without continuing to have people travelling into space on a regular > basis, we have no idea what kinds of new information we won't have > access to. This relates to a question that I've often seen on sci.physics "aren't scientists supposed to be open to all possibilities?" I can understand the framework in which that seems valid. How can someone be a good scientist if they don't look into all possibilities? The problem with that logic is that there are an infinity of possibilities and finite resources to explore them. One needs to pick and chose the best possible candidates. And, manned spaceflight falls rather low on the bang for the buck list. You cite the one example during the last 30 years where having a manned mission was a real plus for science. I'll adress that singular example below. Compare the advancements in science that have come from experiments run by humans in space to those achieved without humans present. I'd argue that there are orders of magnitude of difference between what we've accomplished by machines working on their own vs. what we've accomplished by having humans in orbit working. Yet, the cost of the humans working has been higher than the cost of the unmanned programs. > And there have been (and will probably continue to be) practical > scientific benefits. FREX, without a manned space program, the Hubble > project would have been a bust; remember, it took a manned repair > mission to fix some problems with Hubble that weren't discovered > until it was already in orbit. That is the one example that people continue to refer to. So, I'd argue that one could ask how cost effective a solution this is? How many months of shuttle operation would pay for the difference in cost between building and sending a second Hubble telecope and the cost of repairing the Hubble, as we did? (From the figure's I've seen, its less than 6 months.) Dan M. _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
