Friction stir welding of hydrogen cryogenic tank is the solution for a greener aircraft high weld resistance, lighter tank and a lower price. Hydrogen is difficult to store. This gas has a very low ...

Beneath land once dotted with coal pits lies an estimated 46 million tons of natural hydrogen, a cache large enough to stir ...

What's the currency for all life on Earth? Carbon. Every living thing needs a source of carbon to grow and reproduce. In the ...