又是风雨交加，电闪雷鸣......

in #flash • 6 years ago

我这里是云南大理，最近阴雨连绵，包月，不限流量，看起来是天漏了！
正用着电脑呢，外面雨水淅淅沥沥，时不时伴随着若远若近的雷电活动，要不要马上关机呢？其实，有一个最简单的判断方法：看到闪电，心里开始按秒计数，如果2秒内听到雷声，说明雷电团在700米范围内（光速每秒30万千米，可以忽略不计，声速每秒340米，两秒不到700米），危险距离，马上关机！如果7秒内听到雷声，说明雷电团在2400米范围内，稳妥起见，还是不要使用家用电器了，平安是福！！！7秒开外，基本安全，大家Get到了吗~
flash.jpg

6 years ago in #flash by
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     6 years ago 

    I always love a lightening photo. Even if it's most likely stock, as this one is. Each one represents an exact lucky moment for the photographer, that person got the shot right at the right second. And they were out in the storm too! So each one is good, even if it gets used a lot.

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