57 They're just contrails, youre crazy! (media.scored.co) posted 3 days ago by CottonHill 3 days ago by CottonHill +57 / -0 91 comments share 91 comments share save hide report block hide replies
We had those gas nozzles in our science classrooms and in the 13 years I spent in school not once did I ever see them being used for anything.