How Big is My Medieval City?

Have you ever wondered how big your medieval community should be? As in, how long does it take to circle the walls? How long to run across? How thinly spread are these archers on the walls? I was wanted this for a game the other day, and found a scholarly article on the subject.

We now have an equation, and tables:

Robots as Spaceships: Common Chassis

In spaceships, the certain basic builds come up again and again. This is especially true of robots as spaceships. A lot of robots will want to use the minimal wheeled system, and basic humanoid robots will show up again and again. In this article, we will name these combinations, and list their statistics, so we don't have to specify "1 wheeled drivetrain, 1 power cell, 3 miniaturized armor systems, and a control system" every time we want to talk about the minimum wheeled robot. We'll just say "The wheel bot", and possibly link to this article.