水火山上空的闪电
(原标题: Lightning over the Volcano of Water)
2025-07-27
浏览次数: 1487
你曾经敬畏地观看过闪电风暴吗？你并不孤单。闪电成因的细节仍在研究中，但已知的是，在一些云层内部，内部上升气流会导致冰雪之间的碰撞，从而缓慢地将云顶和云底之间的电荷分离。闪电的快速放电很快就产生了。闪电通常呈锯齿状，迅速将稀薄的空气加热到大约是太阳表面温度的三倍。由此产生的冲击波以超音速开始，然后衰减成被称为雷声的巨响。在全球范围内，平均每分钟大约有6000次闪电发生在云层和地球之间。在2019年7月的两幅合成图像中，闪电来自危地马拉Volcán de Agua（水火山）顶部附近的通信天线。《天空惊喜》：《APOD》在你生日那天给你拍了什么照片？(1995后)
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Have you ever watched a lightning storm in awe? You're not alone. Details of what causes lightning are still being researched, but it is known that inside some clouds, internal updrafts cause collisions between ice and snow that slowly separate charges between cloud tops and bottoms. The rapid electrical discharges that are lightning soon result. Lightning usually takes a jagged course, rapidly heating a thin column of air to about three times the surface temperature of the Sun. The resulting shock wave starts supersonically and decays into the loud sound known as thunder. On average, around the world, about 6,000 lightning bolts occur between clouds and the Earth every minute. Pictured in July 2019 in a two-image composite, lightning stems from communication antennas near the top of Volcán de Agua (Volcano of Water) in Guatemala. Sky Surprise: What picture did APOD feature on your birthday? (post 1995)