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docs/scaling_gas.md

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+## department store
+
+needs 4 tons per min
+
+1 gas mine typically has 3-4 pumps available
+
+1 gas mine = 3 pumps
+1 pump = 0.22222
+
+need 4 tons of gas per min
+
+```
+4/0.22222= 18 pumps
+
+18/5=3.6
+5 mines @ 360%
+
+18/6=3
+6 mines @ 300%
+```
+
+---
+
+```
+5*3 = 15 pumps
+5*.6 = 3 pumps
+= 18 pumps
+```
+
+---
+
+## iron tower
+
+needs 1 ton per minute
+
+```
+1/0.222222 = 4.5 pumps
+
+4.5/1 = 4.5
+1 mine @ 450%
+
+4.5/2 = 2.25
+2 mines @ 225%
+```