Thread: Contrails cannot form into clouds (proof!)
View Single Post
  #39  
Old 11-17-2009, 10:04 AM
Alferd Alferd is offline
Junior Member
  
Join Date: Nov 2009
Posts: 22
Default Re: Contrails cannot form into clouds (proof!)
Quote:
Originally Posted by stompk View Post
Translation. They have been using the airline industry for a long time.

Well based on that photo from WWII, it would be a long time indeed.
Reply With Quote