Re: SPACE: Is ISS a boondoggle?, was Re: SPACE: Why so much EVA on ISS?

From: Brian Atkins (
Date: Mon Mar 19 2001 - 20:21:40 MST

"Robert J. Bradbury" wrote:
> On Mon, 19 Mar 2001, Michael Lorrey wrote:
> > Well sealed cannon plugs are not difficult to make or use. The rationale
> > for putting stuff outside is that it maximizes the space inside to use
> > for people and real equipment. Wires don't need air to live (and are
> > less likely to make a high O2 atmosphere go fizzle...boom). This also
> > minimizes pressure vessel mass for a given amount of workspace.
> Mike, think about this for a minute -- the quotes I keep seeing
> are that the inside volume is going to be ~ that of the cabin
> of a 747. The maximum head count that I've seen for "occupation" of
> the ISS is 7 people. Thats 7 people inside the volume of a 747 cabin.
> Don't you think its unlikely they will be tripping over each other?
> Cables can't take up *that* much space.

I've walked through mockups of some modules at Cape Kennedy, and there
really is not much "shoulder room" in there. Racks of equipment take up
both sides leaving room for perhaps two people shoulder to shoulder but
not three. Although the total volume of all modules may be a 747, it
is going to be very "long and thin" space.

Brian Atkins
Director, Singularity Institute for Artificial Intelligence

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