Laser-guided lightning - Nature Photonics
2023年1月16日 · Here we present the first demonstration that laser-induced filaments—formed in the sky by short and intense laser pulses—can guide lightning discharges over considerable distances. We believe...
Glowing γ-rays solve thunderstorm conundrum - Nature
2024年10月2日 · Aircraft observations of high-energy rays emitted by thunderstorms reveal that they are both intense and dynamic. Long-lasting glows that switch to rapidly flickering flashes could offer clues to...
Mysterious form of high-energy radiation spotted in thunderstorms - Nature
2024年10月2日 · Physicists have discovered a new form of γ-ray radiation that emerges from tropical thunderstorms — and shown that such invisible bursts of energy are more common on Earth than previously thought....
Lightning on Earth Knocks ‘Killer Electrons’ Loose in Orbit
2024年12月2日 · Lightning strikes in the atmosphere can trigger a rain of high-powered “killer electrons” in low-Earth orbit that form harmful streams of radiation, new research suggests. Scientists had ...
Lightning | Voltage, Causes, & Facts | Britannica
2024年11月14日 · Lightning, the visible discharge of electricity that occurs when a region of a cloud acquires an excess electrical charge, either positive or negative, sufficient to break down the resistance of air. It can occur within the cloud, between clouds, between the cloud and the air, or between the cloud and the ground.
How Lightning is Created - National Oceanic and Atmospheric Administration
2023年4月5日 · Leading theories focus around separation of electric charge and generation of an electric field within a thunderstorm. Recent studies also indicate that ice, hail, and semi-frozen water drops are essential to lightning development. Storms that fail to produce large quantities of ice usually fail to produce lightning.
How Lightning Works - HowStuffWorks
2022年5月5日 · Lightning is an incredible force of nature. And like many natural phenomena, lightning is not always what it seems. Go behind the mystery and learn what's really going on when lightning strikes.
Needle-like structures discovered on positively charged lightning ...
2019年4月17日 · Here we report three-dimensional radio interferometric observations of lightning over the Netherlands with unprecedented spatiotemporal resolution. We find small plasma structures—which we call...
ccelerated electric charge in lightning produces electromagnetic radiation over a broad range of frequencies. For more than a century, lightning has been studied using radio-frequency detection...
Nature: When Lightning Strikes – The LOFAR Radio Telescope …
The so-far unknown “lightning needles” might help to explain why lightning does not always discharge at once, as was thought for a long time, but can strike several times within seconds. The scientists have now published their results in Nature (DOI: 10.1038/s41586-019-1086-6).
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