While the effect was first observed with air, other gases including argon, krypton and hydrogen cause very similar effects at higher than atmospheric pressure.
It is designed for generation of electricity on small grids (and other resources, including hydrogen and potable water).
If memory serves me correctly, almost all elements, including hydrogen, can be compressed into a solid.
Systems that generate electricity using alternative resources, including hydrogen, are allowed.
In their metabolic process, the bacteria produce various gases, including carbon dioxide and hydrogen.
When the formula contains no carbon, all the elements, including hydrogen, are listed alphabetically.
The Atomic Energy Commission had known since the 1950's that it could break down into explosive chemicals, including hydrogen.
If the formula contains no carbon, then all of the elements, including hydrogen, are listed alphabetically.
However, self-service pumps are increasingly being manufactured to handle pressurized fuels, including hydrogen.
Microbes also produce a variety of sources of bioenergy including methane and hydrogen.