The economic and weight cost in increasing the strength of the structure to supply a gravity equivalent to the spacecraft is huge.
On Sat, Aug 9, 2014 at 7:07 PM, <mix...@bigpond.com> wrote: > In reply to Axil Axil's message of Fri, 8 Aug 2014 02:30:28 -0400: > Hi, > [snip] > >Another related issue is the peril to the crew imposed by long term > >exposure to microgravity. > > This need not be a problem on the trip out and back. You just need to spin > up > the ship so that the outer rim has 1 g. This is where the crew would spend > most > of their time. > > Long term exposure to radiation is however a different matter, but no > worse than > experienced during long stays in the International Space Station? > > (BTW if I had my way, trips to Mars would take a few days, not months ;) > > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >
