The only byproduct is water, since the motor only burns hydrogen combined with oxygen gas. We already have the technology to build and use clean engines, but somehow we are still not getting the technology into mass-production. Read an interesting paper by Prof. A. Oppenheim, University of California, Berkeley, who says we can development a clean combustion engine by bridging the gap between the progress of science and its engineering implementation. The hydrogen engine will save you money. All rights are reserved.
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