📰 2026-04-22 23:00 更新
🔸 Treetops glowing during storms captured on film for first time / 在电影首次拍摄的暴风雨中，树梢发光
🔗 Treetops glowing during storms captured on film for first time
🔥 43 points
原文:
Corona discharges take shape during storms, the researchers said, because clouds build up strong negative charges that attract the opposite positive charge on the ground below. Opposites attract and this positive electrical ground charge rises up through the trees to the highest point, causing an electric field on the tiny, hair-like tips of leaves that is great enough to create the weak corona glow in both visible and UV form. This UV from the corona breaks apart water vapor, producing hydro…
译文:
研究人员说，日冕放电在暴风雨期间形成，因为云层会产生强烈的负电荷，在下面的地面上吸引相反的正电荷。对立面吸引，这种正电荷通过树木上升到最高点，在叶子的微小毛发状尖端上产生电场，足以产生可见和紫外线形式的弱日冕辉光。这种来自c的紫外线 orona分解水蒸气，产生水…
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