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processes. [ ] it was proclaimed the " molecule of the year " in . [ ] the nobel prize in physiology or medicine was awarded for discovering nitric oxide's role as a cardiovascular signalling molecule. nitric oxide should not be confused with nitrous oxide (n o), an anesthetic , or with nitrogen dioxide...
play. incidentally, it was invented before the combustion engine. now, the technology is ready. in a vehicle's fuel cell, hydrogen reacts with oxygen from the air. this produces electricity for charging the traction battery as well as water and heat. the thermal, air, and liquid management of fuel cells...