5. Anyone know any decent software to model such things that don't require maths ability to use?
argh. no book marks from home at the moment 'cause my computer crashed but...
http://planet-quest.3d-wonders.alienpicks.com/ I remember someone talking about this, with it's simulations of other woelds... there's other stuff on that site, which is mostly free/share for highschool type users/