One Reason for Choosing Nitrogen (N2) for Adams Engines is the Growing Scarcity of Helium

One of the reasons that I decided to use N2 gas as the coolant for Adams EnginesTM is the fact that helium supplies are limited enough so that a new large demand would drive up the price of the gas. I fully expect that someday, direct cycle gas turbines using nuclear heat sources will have the potential for rapid market expansion; I determined a long time ago that I did not want to limit the