[831] Weather Radar

Title Text:Ever notice how there aren’t as many thunderstorms now as there were when you were a kid? Much like ‘the shuffle on my MP3 player has a bias’, this is occasionally true but universally believed. Brains are so interesting!

Origin:https://xkcd.com/831/

https://www.explainxkcd.com/wiki/index.php/831:_Weather_Radar

气象雷达是利用来自雨或雪的无线电波的反射来检测有降雨的地方的装置。然后,来自雷达的信息显示在地图上。在这种情况下,绿色意味着小雨,而红色或白色代表非常大雨 – 可能是雷雨。这些地图可以非常漂亮,令人着迷。在这种情况下,扬声器(位于黑点所在的地方)喜欢在雷达上观看有趣的,意外的事件,并惊讶地看到一场巨大的意外风暴直接向他前进。确实出现了暴风雨,但是分成两半并经过了他的任何一方。发言者的反应似乎表明此事已经发生过。

标题表明,当运行雷达的人注意到你看到页面足够他们通过添加一个向你走来的假风暴来取笑你时会发生这种情况,然后它就会在接近扬声器时消失。

标题文本探讨了我们的感知往往是不准确的 – 有人可能会认为风暴比他们年轻时更少,或者某些歌曲更常出现在他们的MP3播放器上,即使他们没有。判断中有很多这类偏见。

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