Humans depend on fossil fuels as their primary energy source, especially in transportation. However, fossil fuels are both unsustainable and unsafe, serving as the largest source of greenhouse gas emissions. Researchers have demonstrated a prototype device that uses microwave air plasmas for jet propulsion, generating the high-temperature, high-pressure plasma in situ using only injected air and electricity.
from Latest Science News -- ScienceDaily https://ift.tt/2yyc9aM
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