> I'm not saying that hydrogen is the future fuel, but it's in the running. > Mind you, I shudder to think of people who manage to blow themselves up > refueling their cars with gasoline trying to use hydrogen - maybe the > professional pump jockey will make a comeback due to H2 safety concerns?
The real safety concern for hydrogen is that it burns with an almost clear flame. A small low-pressure leak at a hydrogen refueling station in the daylight, if ignited, would burn with a flame the human eye cannot see. You can take your imagination from there. NASA has the same problem with hydrogen, since they use extremely large amounts of it in liquid form. Recently, NASA released several requests for proposals for improved and advanced hydrogen flame detection monitors. It would appear that even NASA cannot get the safety issues of using hydrogen completely under control. Milton Schick Who has used pure pressurized hydrogen in NASA funded engineering research for improved SCRAMjet propulsion. 1964 442 Cutlass [EMAIL PROTECTED]

