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喷气飞机后面那条长长的尾巴是什么物质 – 译学馆
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喷气飞机后面那条长长的尾巴是什么物质

Chemtrails

在一架喷气式飞机的尾部非常容易的看到白色的尾迹
It ’ s easy to look at the white trail
想象一下多种化学物质
behind a jet aircraft and imagine all manner of chemicals
从飞机尾部里大量喷下
raining down from above.
它们会有害吗?
Could they be harmful?
会不会是什么阴谋?
Could it be some sort of conspiracy?
真相就摆在那 一些相当简单的化学反应形式
The truth is out there — in the form of some pretty straightforward chemistry.
化学凝结尾主要含有水 因为化学凝结尾是
Chemtrails are made of mostly water, because that ’ s what happens when the chemistry of
燃料燃烧物遇到空气化学反应的结果
burning jet fuel meets the chemistry of air.
反应原理是
Here’s how that works.
像这样的分子是飞机燃料的主要成分
Jet fuel is mostly made of stuff like thesemolecules here.
这些是碳氢化合物 它们是两侧带有氢原子的碳原子组成的链或者环
These are hydrocarbons,which are chains or rings of carbon atoms
飞机燃料中有一大堆的不同种类的碳氢化合物
with hydrogens hanging off the sides, and there are a whole bunch
支撑着这些分子组成在一起的化学键
of different kinds in jet fuel. The chemical bonds holding those molecules
是燃烧释放后的
together are a source of energy which gets
能量来源
released by burning and,
当发动机在尾部排出燃料时 推动喷气机
when thrown out the back of the engine, propels the jet plane
飞过天空
through the sky.
但当化学键被破坏时,碳和氢必须分开
But the carbon and hydrogen have to go somewhere when the bonds are broken.
与氧气发生反应 产生二氧化碳和水
They mix with oxygen, creating carbon dioxideand water.
这里的副产物
There ’ s a little bit of extra stuff
有些像氮和硫发生化学反应生成
in there too like nitrogen and sulfur ], which reacts
二氧化硫
to form sulfur dioxide.
从喷气飞机发动机和尾迹里排出的燃烧物将一直出现在飞机尾部
The products are expelled from the jet engine and trail along behind the plane.
但水是无污染的
But water is clear.
那么为什么会留下一条明显的痕迹呢
So why’s it leaving a visible trail?
所发生的一切
What ’ s going
在喷气飞机的发动机中发生的化学反应
on in a jet engine are basically the same chemical reactions as in the engine
和以汽油为燃料的汽车发动机中发生的化学反应一样
of a gasoline-fueled car.
寒冷的天气 你可以看道排气管里的尾气
On cold days you can see the exhaust coming out of the tailpipe —
那多半也是水
that ’ s mostly water.
离开喷气式飞机的水也是一样的道理
The same thing happens with the water leaving the jet,
除了更极端的时候
except much more extreme.
在一架巡航高度为35000英尺的商用飞机上
At a commercial plane ’ s cruising altitude of 35,000 feet,
温度大约在
the temperature is around
零下50度 零下50度在南极洲也不是前所未闻
minus 50 C. Minus 50 isn ’ t unheard of in Antarctica,
但那的确是非常非常的冷
but that ’ s pretty flipping cold.
满足特定的条件
Depending on the exact conditions the
水才能凝固成冰晶 或者凝结
water can freeze into ice crystals, or condense
成液滴
into liquid droplets.
硫杂质的确有帮助于液滴的形成
The sulfur impurities really help get thedroplets going.
但无论它是水还是冰
But whether it ’ s water or ice,
那些朵朵的白色痕迹是少量水散射的光
those puffy white trails are made up of bits of H2O scattering
所以我们能看到它
light so we can see it.
这就意味着它们并不是化学喷剂
Which means they aren ’ t CHEMtrails,
当然水是某种意义上的化学物质
except in the sense that water is a chemical.
它们更专业地被称为凝迹 是凝结尾迹的简称
They’re more technically known as CONtrails,short for condensation trails.
科学界在把化学制剂变成凝结尾迹这个问题上有很好的共识
The scientific community is pretty well agreed on the subject of chemtrails being contrails.
参与调查研究大气化学领域的专家
One study surveyed experts in the field
询问他们在整个职业生涯中
of atmospheric chemistry and asked them whether
是否有
they had, in their entire career,
见过秘密大规模喷洒项目的证据
ever seen evidence for a secret large-scale atmospheric
或简写为SLAP
spraying program, or SLAP for short.
99%被调查的专家说没有
99 % of the experts surveyed said no,
这是比五分之四的牙医告诉你
which is way more consensus than the 4 out of 5
嚼一种牌子的口香糖更普遍的常识
dentists telling you to chew a given brandof gum.
因此除非它们是作物喷洒或播云
So unless they ’ re crop dusting or cloud-seeding,
所有喷气飞机在身后留下的
all those jets are leaving behind is their
都是它们的水质排气
own watery exhaust.
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Remember to subscribe before you go,
下次再见
and we ’ ll see you next time.

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视频概述

飞机飞行身后的白色轨迹到底是什么

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