Haber process n. The principal commercial method of producing ammonia, by direct combination of nitrogen and hydrogen under high pressure in the presence of a catalyst, often iron.
There are 50 stars. Every star represents a state. 50 stars = 50 states. There are 50 stars on the US flag, each representing a state. There are 50 stars. Every star represents a state. 50 stars = 50 states. There are 50 stars on the US flag, each representing a state.
This is the pattern of our current 50-star flag. Short: Like the previous pattern, but beginning and ending on the shorter row. This pattern has never been used on the American flag. Out of our six patterns, however, it's the only one that's viable for a hypothetical 71-star flag.