A laser beam shoots into the sky alongside the 124-metre-high telecommunications tower on Säntis mountain in the Swiss Alps.. The work suggests that laser beams could be used as lightning rods to protect infrastructure, although perhaps not any time soon.
Metal lightning rods are commonly used to divert lightning strikes and safely dissipate their charge. But the rods’ size is limited, meaning that so, too, is the area they protect. A sufficiently intense laser beam can create a conductive path for lightning to travel down, just as a metal wire can. Physicists think that it does this by shifting the properties of air so that the beam focuses into a thin, intense filament. This rapidly heats the air, reducing its density and creating a favourable path for lightning.
That's good news. That should help fires from starting in some places. Maybe it will keep some EV's from shutting down also?
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