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声音极限194分贝有多恐怖?超过它空气都“炸”了?
声音有多响,取决于它挤空气的力气,科学家叫这个“声压”。声压越大,声音越响。声压用“帕斯卡”算,但这单位听起来太拗口,人耳也感觉不到啥区别。比如,汽车开过的声音是0.2帕,烟花炸开是200帕,差了1000倍,可你听着没那么夸张吧?所以,科学家搞 ...
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