Login  or  Signup
So you survived an apocalypse...
How to rebuild a civilization from square one. Find out more.
1 Result
On the Method of Constructing a Durable Arch Marcus Vitruvius Pollio

The arch is a principle of engineering that transforms vertical force into lateral thrust, allowing us to span great openings with humble stones. Unlike...

On the Method of Constructing a Durable Arch Marcus Vitruvius Pollio

The arch is a principle of engineering that transforms vertical force into lateral thrust, allowing us to span great openings with humble stones. Unlike...