Enzman sounds right. I had no idea that hydrogen and deuterium behave that
way, interesting! In any event, it would probably make more sense to make a
shaft than a ball of ice anyway. Must be pretty tough to eat that ice in
such a way that the CG doesn't drift off the center axis.
Sander
> -----Original Message-----
> Deuterium, as I recall. That's an Enzmann starship. Unfortunately, that
> design doesn't work: solid hydrogen/deuterium is the prime example of an
> ice which is *not* physically strong. (It has roughly the consistency of
> warm butter.) Enzmann apparently didn't know that.
>
> (For quite fundamental reasons, hydrogen essentially acts as if it was
> considerably warmer than it is. Liquid hydrogen is halfway to being a
> gas: light, quite compressible, very low viscosity -- less than that of
> room-temperature air! -- and easily boiled. And solid hydrogen is halfway
> to being a liquid: soft, amorphous, and easily melted.)
>
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