[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: RE: starship-design: unmanned missions

On Thu, 12 Feb 1998, Steve VanDevender wrote:

> It was definitely digital.  Analog computers have too many moving
> parts and aren't going to work well during launch or landing
> operations.
Who said analog computers need to have any moving parts?  You're thinking
mechanical computer.  AAMOF, analog computers use operational amplifiers
and different voltages to represent different numbers, i.e. 1-10 volts(it
starts at 1 instead of zero so that you can go below 0).  They used two of
them at ground control during the early apollo missions for calculating
trajectory.  TTYL!

Paul Anderson
Hacker, Mad Scientist, Machinist, Publisher, and Author
Owner of the madhobby list, to subscribe e-mail: