[ExI] fun memories of rocket stuff from a long time ago

[Adrian Tymes]

On Sun, Sep 28, 2025 at 8:35 PM spike jones via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> After calculating it a hundred different ways, my conclusion is that
> single stage to orbit can be done.  You just can’t carry enough actual
> payload to make it worth doing.
>

Not without something with much better specific impulse than chemical
rockets, anyway.
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