Chainsaw Jim

Since we mostly work in Radius rather than diameter I suggest 'four thirds pi r cubed' is the easier. it's the same number of components.

Losing bonemass would not be a problem if the aastronaut was to spend their entire life in zero G, the bonemass los might reduce them to a jellyfish, but so what? - it's only inportant if you are coming back to gravity, so maybe all our ideas of aliens, are wrong, or maybe this excellent whiskey is clouding my judgement...