什么是“逆温层”,为什么它会让雾霾散不掉?
What is a temperature inversion, and why does it trap smog?
正常情况下高处更冷、空气上升;逆温时反而高处更暖,像盖子压着,污染物没法向上扩散,雾霾就积在城市里。
Usually it is cooler aloft and air rises; in an inversion warmer air sits above, acting like a lid so pollutants can't rise and smog builds up below.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#逆温 #雾霾
人类能“人工增雨”吗,原理是什么?
Can humans “make rain” artificially, and how?
可以。向冷云播撒碘化银或盐粉当凝结核,让过冷水滴结冰或变大,等条件合适时就能多下一点雨(人工增雨)。
Yes. Seeding cold clouds with silver iodide or salt gives nuclei so supercooled droplets freeze or grow, squeezing out a bit more rain when conditions allow.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#人工增雨 #催云
天气预报说的“蝴蝶效应”是怎么回事?
What is the “butterfly effect” in weather forecasting?
大气对初始条件极其敏感,一点点误差会被放大,所以超过约两周的预报就不可靠了——这就是“蝴蝶扇翅可能引发远方风暴”。
The atmosphere is exquisitely sensitive to initial conditions, so tiny errors balloon and forecasts beyond about two weeks lose reliability—the butterfly's wing idea.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#蝴蝶效应 #预报
同样纬度,为什么沿海和内陆气候差那么多?
At the same latitude, why do coast and inland climates differ so much?
海水升温降温都慢(比热大),像“恒温器”缓和沿海气温;内陆离海远,夏天更热冬天更冷,温差大。
The sea warms and cools slowly (high heat capacity), buffering coastal temperatures like a thermostat; far inland, summers are hotter and winters colder with bigger swings.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#同纬度 #海陆差异
为什么高楼在风里会轻轻摇摆,会不会危险?
Why do tall buildings sway slightly in wind—is it dangerous?
高楼设计成有一定柔韧性,风一吹会小幅摆动来卸掉风力,像芦苇弯腰。只要在限度内,反而更安全。
Tall buildings are designed to be flexible; they sway a little to shed wind force, like reeds bending. Within limits this makes them safer, not riskier.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-10-03 · 2 条独立证据
来源 · Source
《十万个为什么》第六版建筑与交通分册,少年儿童出版社,2013
Ten Thousand Whys: Architecture and Transportation volume, 6th ed., Juvenile and Children Publishing House, 2013
独立核验依据 · Independent verification: 核验依据 1 ISBN 978-7-5324-9328-9 · 核验依据 2 ISBN 9787532493289
#高楼 #风
为什么许多古都(如长安、罗马)都靠近大河?
Why were many ancient capitals (like Chang'an, Rome) built near big rivers?
大河提供饮用和灌溉水、方便乘船运粮运货,还能界河防御。有水有路,城市才容易长大。
Big rivers gave drinking and irrigation water, easy boat transport of grain and goods, and a defensive border. With water and routes, cities could grow.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#古都 #河流
高大的山脉为什么会“挡住”季风和降雨?
How can a tall mountain range block monsoons and rain?
暖湿气流爬山脉时被抬升、变冷、下雨(迎风坡多雨),翻过去后空气变干,背风坡就少雨,形成“雨影区”。
Moist air is lifted by the range, cools and rains on the windward side; past the crest the air is dry, leaving the lee side arid—a rain shadow.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#山脉 #季风