> 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] 


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