Home » Archive by categoryUncategorized

Contrail photos through history

I’ve collected together a few photos of persistent spreading contrails from the past from 1991 back to 1940, just to show that this is nothing new, and that skies exactly like those shown on the “chemtrails” conspiracy web sites have been happening for the past 60 years. Mostly...
Continue reading

Chemical Analysis of Contrails

What is a contrail made of? Mostly ice, since one of the primary exhaust emissions of a jet aircraft is water vapour, which freezes within a couple of seconds, and forms the visible part of the contrail. If the air is fairly humid, then the contrail can persist...
Continue reading

There are a lot of jets in the air

There are a lot of planes in the air, several thousand at any given time over the US. This animation shows all the tracked air traffic in the air at once. Each dot is a jet. Click on the image to see a 24 hour animation. The animation...
Continue reading

A brief history of "Chemtrails"

“Chemtrails” are supposedly long lasting contrails that are being deliberately created by the government for some sinister purpose. In reality, these contrails just look like normal contrails. It’s a fringe conspiracy theory that spread over the internet, mutating as it goes for survivability. But where did it begin?...
Continue reading

Procrustean Science

“Procrustean Science” is a wonderful phrase I came across on the internet in a paper on “Indigenous siderophiles in the lunar highlands”. It’s a rare phrase, deriving from the legend of Procrustes, who was an inn-keeper that liked his guests to fit their beds exactly. If the guests...
Continue reading

Contrail Confusion is Nothing New

Some people think that persistent contrails (high altitude aircraft vapor trails) are unusual, and are evidence of some secret government plot to modify the weather, or spread some population controlling drug or toxin. This is based on a misunderstanding of how contrails form, persist and spread. It is...
Continue reading

Hazy Memories of Blue Skies

Some people believe that persistent contrails are actually evidence of a secret government spraying program called “chemtrails”, which was begun in the 1990s, for some purpose such as weather control, population control or more exotic purposes. A common claim made by those believers is that it is only...
Continue reading