Hand and power tools can be surprisingly wasteful and polluting. Experts drill down on eco-friendly alternatives that still get the job done ...
Morning Overview on MSN
Hydrogen engine maker claims 60% efficiency and diesel-like power
Researchers studying a hydrogen combustion concept built around argon gas say the technology could reach 60% thermal ...
A hydrogen engine using an argon-based cycle reaches more than 60 percent efficiency while operating emission-free.
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