RESOURCE_DEFINITION { name = Helium density = 0.000179 // storage unit is m^3 of Helium at standard pressure (100kPa, 0°C), which has a density of 0.179kg/m^3 (helium tanks store liquid helium which occupies less space, but still weights the same) unitCost = 1.2 hsp = 3000 flowMode = STAGE_PRIORITY_FLOW transfer = PUMP isTweakable = true }