Contrail - Wikipedia
Contrails (/ ˈ k ɒ n t r eɪ l z /; short for "condensation trails") or vapor trails are line-shaped clouds produced by aircraft engine exhaust or changes in air pressure, typically at aircraft cruising …
Why do jets leave a white trail in the sky? | Scientific American
2001年11月19日 · Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the …
What Is the Chemtrails Conspiracy Theory? | HowStuffWorks
2024年11月2日 · Chemtrails are a conspiracy theory suggesting that visible trails left by aircraft contain chemicals deliberately released for covert purposes, like climate control or population …
Chemtrails are one of the most popular conspiracy theories ...
2024年3月12日 · At its most basic, the chemtrails conspiracy theory posits that contrails are not created by water vapor at all, but instead are a sign that the government, the wealthy, or some …
Chemtrails: What's the truth behind the conspiracy theory?
A scheduled passenger aircraft, showing vapour trails from its jet engines. In recent years, followers have expanded their accusations, claiming the contrails are being used to spread …
Science Officially Debunks Chemtrails, But the Conspiracy Will …
2016年8月22日 · Dubbing the contrails “chemtrails,” conspiracy theorists have claimed that these trails of condensed water are part of a secret program to control the weather, change the …
What Are Chemtrails Made Of? | Scientific American
2018年9月22日 · Chemtrails, short for chemical trails, are what some call the white trails you see left behind as a plane passes overhead. Believers in the chemical aspect of chemtrails say …
Are chemtrails real? Here's what experts have said | CTV News
2024年3月12日 · We’ve all seen those white streaks trailing behind jets, creating stripes against the blue sky. The lines are called contrails, short for condensation trails, and they appear when …
Tennessee passes 'chemtrail' bill banning airborne chemicals - BBC
2024年4月2日 · Trails of condensed water vapor created by jet engines have given rise to 'chemtrail' conspiracy theories. Tennessee lawmakers have passed a bill banning the release …
Contrails: What are they and how do they form? - Space.com
2023年8月27日 · Contrails, or condensation trails, are essentially human-made clouds; they are trails of condensed water vapor created by jet engines, according to the National Weather …