Ever want to design your own rocket or space habitat? Now's your chance! I did all the calculations for Gaiome in Ruby, but to check them I also wrote a spreadsheet. It's in Open Office, a free alternative to MS-Office, and it includes:
- Commercial passenger rocket designs
- Asteroid and comet compositions
- Space habitat designs—both spherical and ring-shaped
- Population models
Warning! This is for serious nerds only! I'm offering it free, without warantee of any kind and I know of at least two minor undocumented errors that I may correct on my next slow day. For technical support and customization, please leave a comment with contact info and project details and I'll get back to you with a quote at my standard aerospace rate.