Refraction

De-icing a Gulfstream IV, Reno, Nevada

It looks like they are using a flame thrower to de-ice the airplane, but I suspect it must be a trick of the light. De-icing a small jet like this costs about $1500. De-icing a large airliner can cost $10,000. Most of the expense is for the fluid.

F35A at Nagoya Airfield, Japan

Given the amount of heat distortion of the background, I wonder if there might be another aircraft nearby, just out of the picture.

Aerospatiale ATR-72-500 departing for Guernsey from Manchester, England

Even turboprops produce a heck of a lot of hot air as you can see from the blurring of the background here.