Perhaps a law stating that all parking spaces must be rectangular.
a balance and a metric ruler.
There is not an instrument designed to measure the volume of a rectangular box. You would use a ruler or tape measure or similar to measure its linear dimensions and a brain to multiply them together.
If people didn't have a strong ruler all people would be in chaos.
He would be replaced by a finer ruler. -APEX
They are called Traitors.
The Chinese people believe that a ruler had lost the mandate of heaven if there were natural disasters, social unrest, or military defeats during their rule. These signs were considered indications that the ruler had fallen out of favor with the heavens and was no longer fit to govern.
ruler * * * * * A ruler is not a unit! Most people would use centimetres, though retailers may use millimetres.
Because the Catholic church taught that the only way was to fully participate in all the church's rituals, which could only be performed in the church buildings. This gave the Pope enormous political power, as if any King or other ruler displeased the Pope he could excommunicate that ruler which would cause all church buildings in that ruler's lands to be closed until the ruler repented. The people inevitably saw this as their ruler sending them to hell because they had no access to the church's rituals. A popular rebellion frequently rose up which either forced the ruler to repent and do what pleased the Pope or the ruler was deposed and replaced with another that would please the Pope.
Thomas Hobbes
It would be bad if they used a rhombicosidodecahedron. That is a real thing, not kidding.
The pharaoh who was both ruler and god.
The pharaoh who was both ruler and god.