Pat Flannery wrote in message ...
Rand Simberg wrote:

I have some more commentary on the Gehman report, and why we should
not build "the" next generation launch system.

http://www.foxnews.com/story/0,2933,95930,00.html



It's an interesting article, but I think that the analogy between the
development of commercial aviation and space commercialization is
stretching it a bit...back in the early teens and twenties it was
snip

*Shorter Pat Flannery*

The relevent equation for X-prize is m*g*h

The relevent equation for orbital flight is 1/2*m*v^2

There is a qualitative difference.

*Bonus Shorter Pat Flannery*

Transonic trains would have been nifty, if the whole flight thing didn't work out.

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