Geometrized unit system

Geometrized unit system is a way of measuring time and distance in space. It works like this: First, the unit of time is called a second. One second is the time it takes for light to travel roughly three hundred million meters. To measure distances in space, we use a unit called a meter. One meter is the same as the length of one second of light. Finally, to measure the size of an object, we use a unit called a kilogram, which is equal to the weight of one cubic meter of water. This system allows us to measure things in space accurately, even when they are very far away.